feat(eventsub): add basic parse tests and benchmark (#5952)

.prettierignore

@@ -8,6 +8,7 @@ tests/snapshots/**/*.json
 
 # Ignore submodule files
 lib/*/
+!lib/twitch-eventsub-ws
 conan-pkgs/*/
 cmake/sanitizers-cmake/
 tools/crash-handler
@@ -30,3 +31,6 @@ vcpkg_installed/
 
 # Compile commands generated by CMake
 compile_commands.json
+
+# include files
+*.inc

CHANGELOG.md

@@ -25,7 +25,7 @@
 - Bugfix: Fixed search in emote popup not always working correctly. (#5946)
 - Bugfix: Fixed channel point redemptions with messages not showing up if PubSub is disconnected. (#5948)
 - Dev: Subscriptions to PubSub channel points redemption topics now use no auth token, making it continue to work during PubSub shutdown. (#5947)
-- Dev: Add initial experimental EventSub support. (#5837, #5895, #5897, #5904, #5910, #5903, #5915, #5916, #5930, #5935, #5932, #5943)
+- Dev: Add initial experimental EventSub support. (#5837, #5895, #5897, #5904, #5910, #5903, #5915, #5916, #5930, #5935, #5932, #5943, #5952)
 - Dev: Remove unneeded platform specifier for toasts. (#5914)
 - Dev: Highlight checks now use non-capturing groups for the boundaries. (#5784)
 - Dev: Removed unused PubSub whisper code. (#5898)

CMakeLists.txt

@@ -232,7 +232,7 @@ if (BUILD_WITH_CRASHPAD)
     add_subdirectory("${CMAKE_SOURCE_DIR}/tools/crash-handler")
 endif()
 
-add_subdirectory(lib/twitch-eventsub-ws EXCLUDE_FROM_ALL)
+add_subdirectory(lib/twitch-eventsub-ws)
 
 # Used to provide a date of build in the About page (for nightly builds). Getting the actual time of
 # compilation in CMake is a more involved, as documented in https://stackoverflow.com/q/24292898.

lib/twitch-eventsub-ws/CMakeLists.txt

@@ -32,3 +32,12 @@ set(CMAKE_CXX_STANDARD_REQUIRED ON)
 include(cmake/GenerateJson.cmake)
 
 add_subdirectory(src)
+
+if(BUILD_TESTS)
+    enable_testing()
+    add_subdirectory(tests)
+endif()
+
+if(BUILD_BENCHMARKS)
+    add_subdirectory(benchmarks)
+endif()

lib/twitch-eventsub-ws/benchmarks/CMakeLists.txt

@@ -0,0 +1,28 @@
+project(twitch-eventsub-ws-benchmark)
+
+set(SOURCES
+    src/main.cpp
+    resources/bench.qrc
+
+    src/parse.cpp
+)
+
+add_executable(${PROJECT_NAME} ${SOURCES})
+add_sanitizers(${PROJECT_NAME})
+
+target_link_libraries(${PROJECT_NAME} PRIVATE 
+    twitch-eventsub-ws
+    benchmark::benchmark
+    Qt${MAJOR_QT_VERSION}::Core # for QFile
+)
+
+set_target_properties(${PROJECT_NAME}
+    PROPERTIES
+        RUNTIME_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/bin"
+        CXX_STANDARD 20
+        AUTORCC ON
+)
+
+if(MSVC)
+    target_compile_options(${PROJECT_NAME} PRIVATE /EHsc /bigobj)
+endif()

lib/twitch-eventsub-ws/benchmarks/resources/bench.qrc

@@ -0,0 +1,5 @@
+<RCC>
+    <qresource prefix="/bench">
+        <file>messages.ndjson</file>
+    </qresource>
+</RCC>

lib/twitch-eventsub-ws/benchmarks/resources/messages.ndjson

@@ -0,0 +1,24 @@
+{"metadata":{"message_id":"e6095757-c068-4a97-b6b4-46cb45c8d507","message_type":"notification","message_timestamp":"2023-05-14T12:31:47.995298776Z","subscription_type":"channel.ban","subscription_version":"1"},"payload":{"subscription":{"id":"4aa632e0-fca3-590b-e981-bbd12abdb3fe","status":"enabled","type":"channel.ban","version":"1","condition":{"broadcaster_user_id":"74378979"},"transport":{"method":"websocket","session_id":"38de428e_b11f07be"},"created_at":"2023-05-20T12:30:55.518375571Z","cost":0},"event":{"banned_at":"2023-05-20T12:30:55.518375571Z","broadcaster_user_id":"74378979","broadcaster_user_login":"testBroadcaster","broadcaster_user_name":"testBroadcaster","ends_at":"2023-05-20T12:40:55.518375571Z","is_permanent":false,"moderator_user_id":"29024944","moderator_user_login":"CLIModerator","moderator_user_name":"CLIModerator","reason":"This is a test event","user_id":"40389552","user_login":"testFromUser","user_name":"testFromUser"}}}
+{"metadata":{"message_id":"7d9daa03-06f0-43ef-94d8-b22e8662bb99","message_type":"notification","message_timestamp":"2024-05-14T12:31:47.995298776Z","subscription_type":"channel.chat.message","subscription_version":"1"},"payload":{"subscription":{"id":"0b7f3361-672b-4d39-b307-dd5b576c9b27","status":"enabled","type":"channel.chat.message","version":"1","condition":{"broadcaster_user_id":"1971641","user_id":"2914196"},"transport":{"method":"websocket","session_id":"AgoQHR3s6Mb4T8GFB1l3DlPfiRIGY2VsbC1h"},"created_at":"2023-11-06T18:11:47.492253549Z","cost":0},"event":{"broadcaster_user_id":"1971641","broadcaster_user_login":"streamer","broadcaster_user_name":"streamer","chatter_user_id":"4145994","chatter_user_login":"viewer32","chatter_user_name":"viewer32","message_id":"cc106a89-1814-919d-454c-f4f2f970aae7","message":{"text":"Hi chat","fragments":[{"type":"text","text":"Hi chat","cheermote":null,"emote":null,"mention":null}]},"color":"#00FF7F","badges":[{"set_id":"moderator","id":"1","info":""},{"set_id":"subscriber","id":"12","info":"16"},{"set_id":"sub-gifter","id":"1","info":""}],"message_type":"text","cheer":null,"reply":null,"channel_points_custom_reward_id":null,"source_broadcaster_user_id":"112233","source_broadcaster_user_login":"streamer33","source_broadcaster_user_name":"streamer33","source_message_id":"e03f6d5d-8ec8-4c63-b473-9e5fe61e289b","source_badges":[{"set_id":"subscriber","id":"3","info":"3"}]}}}
+{"metadata":{"message_id":"7906227f-d95f-4ac7-b766-171b93023333","message_type":"notification","message_timestamp":"2024-05-14T12:31:47.995298776Z","subscription_type":"channel.chat.message","subscription_version":"1"},"payload":{"subscription":{"id":"0b7f3361-672b-4d39-b307-dd5b576c9b27","status":"enabled","type":"channel.chat.message","version":"1","condition":{"broadcaster_user_id":"1971641","user_id":"2914196"},"transport":{"method":"websocket","session_id":"AgoQHR3s6Mb4T8GFB1l3DlPfiRIGY2VsbC1h"},"created_at":"2023-11-06T18:11:47.492253549Z","cost":0},"event":{"broadcaster_user_id":"1971641","broadcaster_user_login":"streamer","broadcaster_user_name":"streamer","chatter_user_id":"4145994","chatter_user_login":"viewer32","chatter_user_name":"viewer32","message_id":"cc106a89-1814-919d-454c-f4f2f970aae7","message":{"text":"Hi chat","fragments":[{"type":"text","text":"Hi chat","cheermote":null,"emote":null,"mention":null}]},"color":"#00FF7F","badges":[{"set_id":"moderator","id":"1","info":""},{"set_id":"subscriber","id":"12","info":"16"},{"set_id":"sub-gifter","id":"1","info":""}],"message_type":"text","cheer":null,"reply":null,"channel_points_custom_reward_id":null,"source_broadcaster_user_id":null,"source_broadcaster_user_login":null,"source_broadcaster_user_name":null,"source_message_id":null,"source_badges":null}}}
+{"metadata":{"message_id":"be5c6e89-13b4-48cf-ab04-f83ca62b0b57","message_type":"notification","message_timestamp":"2024-05-14T12:31:47.995298776Z","subscription_type":"channel.chat.notification","subscription_version":"1"},"payload":{"subscription":{"id":"dc1a3cfc-a930-4972-bf9e-0ffc4e7a8996","status":"enabled","type":"channel.chat.notification","version":"1","condition":{"broadcaster_user_id":"1971641","user_id":"2914196"},"transport":{"method":"websocket","session_id":"AgoQOtgGkFvXRlSkij343CndhIGY2VsbC1h"},"created_at":"2023-10-06T18:04:38.807682738Z","cost":0},"event":{"broadcaster_user_id":"1971641","broadcaster_user_login":"streamer","broadcaster_user_name":"streamer","chatter_user_id":"49912639","chatter_user_login":"viewer23","chatter_user_name":"viewer23","chatter_is_anonymous":false,"color":"","badges":[],"system_message":"viewer23 subscribed at Tier 1. They've subscribed for 10 months!","message_id":"d62235c8-47ff-a4f4--84e8-5a29a65a9c03","message":{"text":"","fragments":[]},"notice_type":"shared_chat_resub","sub":null,"resub":null,"sub_gift":null,"community_sub_gift":null,"gift_paid_upgrade":null,"prime_paid_upgrade":null,"pay_it_forward":null,"raid":null,"unraid":null,"announcement":null,"bits_badge_tier":null,"charity_donation":null,"shared_chat_sub":null,"shared_chat_resub":{"cumulative_months":10,"duration_months":0,"streak_months":null,"sub_tier":"1000","is_gift":false,"gifter_is_anonymous":null,"gifter_user_id":null,"gifter_user_name":null,"gifter_user_login":null},"shared_chat_sub_gift":null,"shared_chat_community_sub_gift":null,"shared_chat_gift_paid_upgrade":null,"shared_chat_prime_paid_upgrade":null,"shared_chat_pay_it_forward":null,"shared_chat_raid":null,"shared_chat_unraid":null,"shared_chat_announcement":null,"shared_chat_bits_badge_tier":null,"shared_chat_charity_donation":null,"source_broadcaster_user_id":"112233","source_broadcaster_user_login":"streamer33","source_broadcaster_user_name":"streamer33","source_message_id":"2be7193d-0366-4453-b6ec-b288ce9f2c39","source_badges":[{"set_id":"subscriber","id":"3","info":"3"}]}}}
+{"metadata":{"message_id":"2246f78c-ce7b-4639-836b-d3bddc3f65ef","message_type":"notification","message_timestamp":"2024-05-14T12:31:47.995298776Z","subscription_type":"channel.chat.notification","subscription_version":"1"},"payload":{"subscription":{"id":"96f9a91e-f1e0-43af-82ac-a6e934778805","status":"enabled","type":"channel.chat.notification","version":"1","condition":{"broadcaster_user_id":"165080419","user_id":"27620241"},"transport":{"method":"websocket","session_id":"AgoQUlB8aB2SSsavWVfcs5ljnBIGY2VsbC1j"},"created_at":"2023-11-20T16:41:22.999246448Z","cost":0},"event":{"broadcaster_user_id":"165080419","broadcaster_user_login":"elraenn","broadcaster_user_name":"Elraenn","chatter_user_id":"425829220","chatter_user_login":"kecogluali5","chatter_user_name":"Kecogluali5","chatter_is_anonymous":false,"color":"#0000FF","badges":[{"set_id":"subscriber","id":"12","info":"12"}],"system_message":"Kecogluali5 is paying forward the Gift they got from CasinoZEBERUS to the community!","message_id":"573a20ff-8f88-499e-be2b-c7079eb76f6c","message":{"text":"","fragments":[]},"notice_type":"pay_it_forward","sub":null,"resub":null,"sub_gift":null,"community_sub_gift":null,"gift_paid_upgrade":null,"prime_paid_upgrade":null,"pay_it_forward":{"recipient_user_id":null,"recipient_user_name":null,"recipient_user_login":null,"gifter_is_anonymous":false,"gifter_user_id":"967793245","gifter_user_name":"CasinoZEBERUS","gifter_user_login":"casinozeberus"},"raid":null,"unraid":null,"announcement":null,"bits_badge_tier":null,"charity_donation":null}}}
+{"metadata":{"message_id":"8425d945-1e15-4790-81b2-6366b20ef9c2","message_type":"notification","message_timestamp":"2024-05-14T12:31:47.995298776Z","subscription_type":"channel.chat.notification","subscription_version":"1"},"payload":{"subscription":{"id":"96f9a91e-f1e0-43af-82ac-a6e934778805","status":"enabled","type":"channel.chat.notification","version":"1","condition":{"broadcaster_user_id":"165080419","user_id":"27620241"},"transport":{"method":"websocket","session_id":"AgoQUlB8aB2SSsavWVfcs5ljnBIGY2VsbC1j"},"created_at":"2023-11-20T16:41:22.999246448Z","cost":0},"event":{"broadcaster_user_id":"165080419","broadcaster_user_login":"elraenn","broadcaster_user_name":"Elraenn","chatter_user_id":"735414451","chatter_user_login":"deniztony","chatter_user_name":"DenizTony","chatter_is_anonymous":false,"color":"#03FCFC","badges":[{"set_id":"subscriber","id":"3","info":"5"},{"set_id":"rplace-2023","id":"1","info":""}],"system_message":"DenizTony is paying forward the Gift they got from VikingHido to the community!","message_id":"3bc0badf-1d2c-45cd-8743-62ba2f41a2f6","message":{"text":"","fragments":[]},"notice_type":"pay_it_forward","sub":null,"resub":null,"sub_gift":null,"community_sub_gift":null,"gift_paid_upgrade":null,"prime_paid_upgrade":null,"pay_it_forward":{"recipient_user_id":null,"recipient_user_name":null,"recipient_user_login":null,"gifter_is_anonymous":false,"gifter_user_id":"446352253","gifter_user_name":"VikingHido","gifter_user_login":"vikinghido"},"raid":null,"unraid":null,"announcement":null,"bits_badge_tier":null,"charity_donation":null}}}
+{"metadata":{"message_id":"f39c8d5c-c264-4850-8fc0-0e38d3bba36e","message_type":"notification","message_timestamp":"2024-05-14T12:31:47.995298776Z","subscription_type":"channel.chat.notification","subscription_version":"1"},"payload":{"subscription":{"id":"d46bb9d5-7b78-4495-a8f6-31e0bfe74422","status":"enabled","type":"channel.chat.notification","version":"1","condition":{"broadcaster_user_id":"67931625","user_id":"27620241"},"transport":{"method":"websocket","session_id":"AgoQUlB8aB2SSsavWVfcs5ljnBIGY2VsbC1j"},"created_at":"2023-11-20T16:41:21.3673997Z","cost":0},"event":{"broadcaster_user_id":"67931625","broadcaster_user_login":"amar","broadcaster_user_name":"Amar","chatter_user_id":"276319092","chatter_user_login":"baba_avil","chatter_user_name":"BaBa_Avil","chatter_is_anonymous":false,"color":"#9ACD32","badges":[{"set_id":"subscriber","id":"3","info":"4"},{"set_id":"premium","id":"1","info":""}],"system_message":"BaBa_Avil is paying forward the Gift they got from sarius05 to melizhr!","message_id":"1b1cf50d-d01b-4019-a564-cad2937bfeae","message":{"text":"","fragments":[]},"notice_type":"pay_it_forward","sub":null,"resub":null,"sub_gift":null,"community_sub_gift":null,"gift_paid_upgrade":null,"prime_paid_upgrade":null,"pay_it_forward":{"recipient_user_id":"924524794","recipient_user_name":"melizhr","recipient_user_login":"melizhr","gifter_is_anonymous":false,"gifter_user_id":"434322296","gifter_user_name":"sarius05","gifter_user_login":"sarius05"},"raid":null,"unraid":null,"announcement":null,"bits_badge_tier":null,"charity_donation":null}}}
+{"metadata":{"message_id":"d624fc2a-3504-432a-acbb-78b47ae5d882","message_type":"notification","message_timestamp":"2024-05-14T12:31:47.995298776Z","subscription_type":"channel.chat.notification","subscription_version":"1"},"payload":{"subscription":{"id":"96f9a91e-f1e0-43af-82ac-a6e934778805","status":"enabled","type":"channel.chat.notification","version":"1","condition":{"broadcaster_user_id":"165080419","user_id":"27620241"},"transport":{"method":"websocket","session_id":"AgoQUlB8aB2SSsavWVfcs5ljnBIGY2VsbC1j"},"created_at":"2023-11-20T16:41:22.999246448Z","cost":0},"event":{"broadcaster_user_id":"1337","broadcaster_user_login":"Cool_User","broadcaster_user_name":"cool_user","chatter_user_id":"1234","chatter_user_login":"justinfan1","chatter_user_name":"justinfan1","chatter_is_anonymous":false,"color":"#03FCFC","badges":[{"set_id":"subscriber","id":"3","info":"5"},{"set_id":"rplace-2023","id":"1","info":""}],"system_message":"justinfan1 is paying forward the Gift they got from SomeoneElse to the community!","message_id":"3bc0badf-1d2c-45cd-8743-62ba2f411337","message":{"text":"","fragments":[]},"notice_type":"pay_it_forward","sub":null,"resub":null,"sub_gift":null,"community_sub_gift":null,"gift_paid_upgrade":null,"prime_paid_upgrade":null,"pay_it_forward":{"recipient_user_id":null,"recipient_user_name":null,"recipient_user_login":null,"gifter_is_anonymous":false,"gifter_user_id":"5678","gifter_user_name":"SomeoneElse","gifter_user_login":"someoneelse"},"raid":null,"unraid":null,"announcement":null,"bits_badge_tier":null,"charity_donation":null}}}
+{"metadata":{"message_id":"333c1c6a-475f-4c7a-bb16-fe0ae443ac32","message_type":"notification","message_timestamp":"2024-05-14T12:31:47.995298776Z","subscription_type":"channel.chat.notification","subscription_version":"1"},"payload":{"subscription":{"id":"96f9a91e-f1e0-43af-82ac-a6e934771337","status":"enabled","type":"channel.chat.notification","version":"1","condition":{"broadcaster_user_id":"165081337","user_id":"27620241"},"transport":{"method":"websocket","session_id":"AgoQUlB8aB2SSsavWVfcs5ljnBIGY2Vs1337"},"created_at":"2023-11-20T16:41:22.999246448Z","cost":0},"event":{"broadcaster_user_id":"1337","broadcaster_user_login":"Cool_User","broadcaster_user_name":"cool_user","chatter_user_id":"5678","chatter_user_login":"someone1","chatter_user_name":"someone1","chatter_is_anonymous":false,"color":"","badges":[{"set_id":"subscriber","id":"2","info":"2"}],"system_message":"someone1 subscribed at Tier 1. They've subscribed for 2 months!","message_id":"101ab672-fcde-4d71-8011-ac2859786cea","message":{"text":"","fragments":[]},"notice_type":"resub","sub":null,"resub":{"cumulative_months":2,"duration_months":0,"streak_months":null,"sub_tier":"1000","is_prime":false,"is_gift":true,"gifter_is_anonymous":false,"gifter_user_id":"1234","gifter_user_name":"justinfan1","gifter_user_login":"justinfan1"},"sub_gift":null,"community_sub_gift":null,"gift_paid_upgrade":null,"prime_paid_upgrade":null,"pay_it_forward":null,"raid":null,"unraid":null,"announcement":null,"bits_badge_tier":null,"charity_donation":null}}}
+{"metadata":{"message_id":"dad488f6-ee77-472c-a113-be158651a28e","message_type":"notification","message_timestamp":"2024-05-14T12:31:47.995298776Z","subscription_type":"channel.chat.notification","subscription_version":"1"},"payload":{"subscription":{"id":"f6b57ae8-add7-4faa-a396-4d6c87cb1337","status":"enabled","type":"channel.chat.notification","version":"1","condition":{"broadcaster_user_id":"1337","user_id":"27620241"},"transport":{"method":"websocket","session_id":"AgoQ_ZPE5-zrR2W3HJjkQxrFfxIGY2Vs1337"},"created_at":"2023-11-20T09:52:07.940291459Z","cost":0},"event":{"broadcaster_user_id":"1337","broadcaster_user_login":"cool_user","broadcaster_user_name":"Cool_User","chatter_user_id":null,"chatter_user_login":null,"chatter_user_name":null,"chatter_is_anonymous":true,"color":"","badges":[],"system_message":"An anonymous user is gifting 1 Tier 1 Subs to Cool_User's community!","message_id":"fa2135ca-34da-413f-1337-4efa3c9a6bac","message":{"text":"","fragments":[]},"notice_type":"community_sub_gift","sub":null,"resub":null,"sub_gift":null,"community_sub_gift":{"id":"12111455614691086753","total":1,"cumulative_total":null,"sub_tier":"1000"},"gift_paid_upgrade":null,"prime_paid_upgrade":null,"pay_it_forward":null,"raid":null,"unraid":null,"announcement":null,"bits_badge_tier":null,"charity_donation":null}}}
+{"metadata":{"message_id":"8466103d-5c96-4a92-b6ae-8a1a5ab9d22b","message_type":"notification","message_timestamp":"2024-05-14T12:31:47.995298776Z","subscription_type":"channel.chat.notification","subscription_version":"1"},"payload":{"subscription":{"id":"2237f256-1b83-4ec9-956e-c3578925e8e6","status":"enabled","type":"channel.chat.notification","version":"1","condition":{"broadcaster_user_id":"67931625","user_id":"27620241"},"transport":{"method":"websocket","session_id":"AgoQuf4yiyFuTd64mlIG4zbSOxIGY2VsbC1j"},"created_at":"2023-11-19T22:08:49.127052362Z","cost":0},"event":{"broadcaster_user_id":"67931625","broadcaster_user_login":"amar","broadcaster_user_name":"Amar","chatter_user_id":"101572475","chatter_user_login":"justinfan","chatter_user_name":"justinfan","chatter_is_anonymous":false,"color":"#FA6E02","badges":[{"set_id":"moderator","id":"1","info":""},{"set_id":"subscriber","id":"48","info":"58"},{"set_id":"partner","id":"1","info":""}],"system_message":"justinfan subscribed at Tier 1. They've subscribed for 58 months!","message_id":"aaa15585-0f43-4c32-8c48-56d58e9567a7","message":{"text":"GIB MIR DEN POKAL","fragments":[{"type":"text","text":"GIB MIR DEN POKAL","cheermote":null,"emote":null,"mention":null}]},"notice_type":"resub","sub":null,"resub":{"cumulative_months":58,"duration_months":0,"streak_months":null,"sub_tier":"1000","is_prime":false,"is_gift":false,"gifter_is_anonymous":null,"gifter_user_id":null,"gifter_user_name":null,"gifter_user_login":null},"sub_gift":null,"community_sub_gift":null,"gift_paid_upgrade":null,"prime_paid_upgrade":null,"pay_it_forward":null,"raid":null,"unraid":null,"announcement":null,"bits_badge_tier":null,"charity_donation":null}}}
+{"metadata":{"message_id":"0df6d3ca-ac07-461c-bd21-3340dc2b61c8","message_type":"notification","message_timestamp":"2024-05-14T12:31:47.995298776Z","subscription_type":"channel.chat.notification","subscription_version":"1"},"payload":{"subscription":{"id":"eebd50e7-2e58-4034-849b-d47e935632da5","status":"enabled","type":"channel.chat.notification","version":"1","condition":{"broadcaster_user_id":"1337","user_id":"27620241"},"transport":{"method":"websocket","session_id":"AgoQTaaaaaaaab2QtdG5r8vMSBIaaaaaaaaa"},"created_at":"2023-11-19T21:31:08.935820817Z","cost":0},"event":{"broadcaster_user_id":"1337","broadcaster_user_login":"cool_user","broadcaster_user_name":"Cool_User","chatter_user_id":"1234","chatter_user_login":"justinfan","chatter_user_name":"justinfan","chatter_is_anonymous":false,"color":"#E20072","badges":[{"set_id":"subscriber","id":"60","info":"65"},{"set_id":"twitchconAmsterdam2020","id":"1","info":""}],"system_message":"justinfan subscribed at Tier 1. They've subscribed for 65 months!","message_id":"5dfe4963-9db8-44a9-9f69-27452aaaaa30","message":{"text":"","fragments":[]},"notice_type":"resub","sub":null,"resub":{"cumulative_months":65,"duration_months":0,"streak_months":null,"sub_tier":"1000","is_prime":false,"is_gift":false,"gifter_is_anonymous":null,"gifter_user_id":null,"gifter_user_name":null,"gifter_user_login":null},"sub_gift":null,"community_sub_gift":null,"gift_paid_upgrade":null,"prime_paid_upgrade":null,"pay_it_forward":null,"raid":null,"unraid":null,"announcement":null,"bits_badge_tier":null,"charity_donation":null}}}
+{"metadata":{"message_id":"ae24c14e-2e34-4d78-99b0-9c5586a47cd9","message_type":"notification","message_timestamp":"2024-05-14T12:31:47.995298776Z","subscription_type":"channel.chat.notification","subscription_version":"1"},"payload":{"subscription":{"id":"dc1a3cfc-a930-4972-bf9e-0ffc4e7a8996","status":"enabled","type":"channel.chat.notification","version":"1","condition":{"broadcaster_user_id":"1971641","user_id":"2914196"},"transport":{"method":"websocket","session_id":"AgoQOtgGkFvXRlSkij343CndhIGY2VsbC1h"},"created_at":"2023-10-06T18:04:38.807682738Z","cost":0},"event":{"broadcaster_user_id":"1971641","broadcaster_user_login":"streamer","broadcaster_user_name":"streamer","chatter_user_id":"49912639","chatter_user_login":"viewer23","chatter_user_name":"viewer23","chatter_is_anonymous":false,"color":"","badges":[],"system_message":"viewer23 subscribed at Tier 1. They've subscribed for 10 months!","message_id":"d62235c8-47ff-a4f4--84e8-5a29a65a9c03","message":{"text":"","fragments":[]},"notice_type":"resub","sub":null,"resub":{"cumulative_months":10,"duration_months":0,"streak_months":null,"sub_tier":"1000","is_gift":false,"gifter_is_anonymous":null,"gifter_user_id":null,"gifter_user_name":null,"gifter_user_login":null},"sub_gift":null,"community_sub_gift":null,"gift_paid_upgrade":null,"prime_paid_upgrade":null,"pay_it_forward":null,"raid":null,"unraid":null,"announcement":null,"bits_badge_tier":null,"charity_donation":null,"shared_chat_sub":null,"shared_chat_resub":null,"shared_chat_sub_gift":null,"shared_chat_community_sub_gift":null,"shared_chat_gift_paid_upgrade":null,"shared_chat_prime_paid_upgrade":null,"shared_chat_pay_it_forward":null,"shared_chat_raid":null,"shared_chat_announcement":null,"source_broadcaster_user_id":null,"source_broadcaster_user_login":null,"source_broadcaster_user_name":null,"source_message_id":null,"source_badges":null}}}
+{"metadata":{"message_id":"bf6e248f-a523-4bf8-b215-ea1822e60223","message_type":"notification","message_timestamp":"2024-05-14T12:31:47.995298776Z","subscription_type":"channel.moderate","subscription_version":"2"},"payload":{"subscription":{"id":"86d99e53-2837-40cf-bc6e-c6e00698919c","status":"enabled","type":"channel.moderate","version":"2","condition":{"broadcaster_user_id":"11148817","moderator_user_id":"117166826"},"transport":{"method":"websocket","session_id":"AgoQZgfnyKxXQ32hpzCWF4aCGBIGY2VsbC1j"},"created_at":"2025-02-01T12:02:16.005321321Z","cost":0},"event":{"broadcaster_user_id":"11148817","broadcaster_user_login":"pajlada","broadcaster_user_name":"pajlada","source_broadcaster_user_id":null,"source_broadcaster_user_login":null,"source_broadcaster_user_name":null,"moderator_user_id":"11148817","moderator_user_login":"pajlada","moderator_user_name":"pajlada","action":"followers","followers":{"follow_duration_minutes":0},"slow":null,"vip":null,"unvip":null,"mod":null,"unmod":null,"ban":null,"unban":null,"timeout":null,"untimeout":null,"raid":null,"unraid":null,"delete":null,"automod_terms":null,"unban_request":null,"warn":null,"shared_chat_ban":null,"shared_chat_unban":null,"shared_chat_timeout":null,"shared_chat_untimeout":null,"shared_chat_delete":null}}}
+{"metadata":{"message_id":"b3426fa4-f7b0-4d20-827f-f620d9b9bce0","message_type":"notification","message_timestamp":"2024-05-14T12:31:47.995298776Z","subscription_type":"channel.moderate","subscription_version":"2"},"payload":{"subscription":{"id":"86d99e53-2837-40cf-bc6e-c6e00698919c","status":"enabled","type":"channel.moderate","version":"2","condition":{"broadcaster_user_id":"11148817","moderator_user_id":"117166826"},"transport":{"method":"websocket","session_id":"AgoQZgfnyKxXQ32hpzCWF4aCGBIGY2VsbC1j"},"created_at":"2025-02-01T12:02:16.005321321Z","cost":0},"event":{"broadcaster_user_id":"11148817","broadcaster_user_login":"pajlada","broadcaster_user_name":"pajlada","source_broadcaster_user_id":null,"source_broadcaster_user_login":null,"source_broadcaster_user_name":null,"moderator_user_id":"11148817","moderator_user_login":"pajlada","moderator_user_name":"pajlada","action":"followersoff","followers":null,"slow":null,"vip":null,"unvip":null,"mod":null,"unmod":null,"ban":null,"unban":null,"timeout":null,"untimeout":null,"raid":null,"unraid":null,"delete":null,"automod_terms":null,"unban_request":null,"warn":null,"shared_chat_ban":null,"shared_chat_unban":null,"shared_chat_timeout":null,"shared_chat_untimeout":null,"shared_chat_delete":null}}}
+{"metadata":{"message_id":"0a0741bb-eb9f-4337-9581-d088c2acc3b2","message_type":"notification","message_timestamp":"2024-05-14T12:31:47.995298776Z","subscription_type":"channel.moderate","subscription_version":"2"},"payload":{"subscription":{"id":"86d99e53-2837-40cf-bc6e-c6e00698919c","status":"enabled","type":"channel.moderate","version":"2","condition":{"broadcaster_user_id":"11148817","moderator_user_id":"117166826"},"transport":{"method":"websocket","session_id":"AgoQZgfnyKxXQ32hpzCWF4aCGBIGY2VsbC1j"},"created_at":"2025-02-01T12:02:16.005321321Z","cost":0},"event":{"broadcaster_user_id":"11148817","broadcaster_user_login":"pajlada","broadcaster_user_name":"pajlada","source_broadcaster_user_id":null,"source_broadcaster_user_login":null,"source_broadcaster_user_name":null,"moderator_user_id":"11148817","moderator_user_login":"pajlada","moderator_user_name":"pajlada","action":"followers","followers":{"follow_duration_minutes":10080},"slow":null,"vip":null,"unvip":null,"mod":null,"unmod":null,"ban":null,"unban":null,"timeout":null,"untimeout":null,"raid":null,"unraid":null,"delete":null,"automod_terms":null,"unban_request":null,"warn":null,"shared_chat_ban":null,"shared_chat_unban":null,"shared_chat_timeout":null,"shared_chat_untimeout":null,"shared_chat_delete":null}}}
+{"metadata":{"message_id":"c5c679a1-f99d-4863-9f57-c434b10dc39d","message_type":"notification","message_timestamp":"2024-05-14T12:31:47.995298776Z","subscription_type":"channel.moderate","subscription_version":"2"},"payload":{"subscription":{"id":"7297f7eb-3bf5-461f-8ae6-7cd7781ebce3","status":"enabled","type":"channel.moderate","version":"2","cost":0,"condition":{"broadcaster_user_id":"423374343","moderator_user_id":"423374343"},"transport":{"method":"websocket","session_id":"AgoQUlB8aB2SSsavWVfcs5ljnBIGY2VsbC1j"},"created_at":"2024-02-23T21:12:33.771005262Z"},"event":{"broadcaster_user_id":"423374343","broadcaster_user_login":"glowillig","broadcaster_user_name":"glowillig","moderator_user_id":"424596340","moderator_user_login":"quotrok","moderator_user_name":"quotrok","action":"emoteonly","followers":null,"slow":null,"vip":null,"unvip":null,"mod":null,"unmod":null,"ban":null,"unban":null,"warn":null,"timeout":null,"untimeout":null,"raid":null,"unraid":null,"delete":null,"automod_terms":null,"unban_request":null,"shared_chat_ban":null,"shared_chat_unban":null,"shared_chat_timeout":null,"shared_chat_untimeout":null,"shared_chat_delete":null}}}
+{"metadata":{"message_id":"cf0534f2-a006-4c83-a958-346333bb631f","message_type":"notification","message_timestamp":"2024-05-14T12:31:47.995298776Z","subscription_type":"channel.moderate","subscription_version":"2"},"payload":{"subscription":{"id":"7297f7eb-3bf5-461f-8ae6-7cd7781ebce3","status":"enabled","type":"channel.moderate","version":"2","cost":0,"condition":{"broadcaster_user_id":"423374343","moderator_user_id":"423374343"},"transport":{"method":"websocket","session_id":"AgoQUlB8aB2SSsavWVfcs5ljnBIGY2VsbC1j"},"created_at":"2024-02-23T21:12:33.771005262Z"},"event":{"broadcaster_user_id":"423374343","broadcaster_user_login":"glowillig","broadcaster_user_name":"glowillig","moderator_user_id":"424596340","moderator_user_login":"quotrok","moderator_user_name":"quotrok","action":"mod","followers":null,"slow":null,"vip":null,"unvip":null,"warn":null,"mod":{"user_id":"141981764","user_login":"twitchdev","user_name":"TwitchDev"},"unmod":null,"ban":null,"unban":null,"timeout":null,"untimeout":null,"raid":null,"unraid":null,"delete":null,"automod_terms":null,"unban_request":null,"shared_chat_ban":null,"shared_chat_unban":null,"shared_chat_timeout":null,"shared_chat_untimeout":null,"shared_chat_delete":null}}}
+{"metadata":{"message_id":"e8edc592-5550-4aa5-bba6-39e31a2be435","message_type":"notification","message_timestamp":"2024-05-14T12:31:47.995298776Z","subscription_type":"channel.moderate","subscription_version":"2"},"payload":{"subscription":{"id":"7297f7eb-3bf5-461f-8ae6-7cd7781ebce3","status":"enabled","type":"channel.moderate","version":"2","cost":0,"condition":{"broadcaster_user_id":"423374343","moderator_user_id":"424596340"},"transport":{"method":"websocket","session_id":"AgoQUlB8aB2SSsavWVfcs5ljnBIGY2VsbC1j"},"created_at":"2024-02-23T21:12:33.771005262Z"},"event":{"broadcaster_user_id":"423374343","broadcaster_user_login":"glowillig","broadcaster_user_name":"glowillig","source_broadcaster_user_id":"41292030","source_broadcaster_user_login":"adflynn404","source_broadcaster_user_name":"adflynn404","moderator_user_id":"424596340","moderator_user_login":"quotrok","moderator_user_name":"quotrok","action":"warn","followers":null,"slow":null,"vip":null,"unvip":null,"warn":{"user_id":"141981764","user_login":"twitchdev","user_name":"TwitchDev","reason":"cut it out","chat_rules_cited":null},"unmod":null,"ban":null,"unban":null,"timeout":null,"untimeout":null,"raid":null,"unraid":null,"delete":null,"automod_terms":null,"unban_request":null,"shared_chat_ban":null,"shared_chat_unban":null,"shared_chat_timeout":null,"shared_chat_untimeout":null,"shared_chat_delete":null}}}
+{"metadata":{"message_id":"2ea469a5-4bc8-4f95-ae08-c10b679cf038","message_type":"notification","message_timestamp":"2024-05-14T12:31:47.995298776Z","subscription_type":"channel.moderate","subscription_version":"2"},"payload":{"subscription":{"id":"5a893cd8-c10e-4198-a620-e9f35fd6ccd6","status":"enabled","type":"channel.moderate","version":"2","condition":{"broadcaster_user_id":"129546453","moderator_user_id":"129546453"},"transport":{"method":"websocket","session_id":"AgoQMmDnfVEhRI6iLiBniEWHkxIGY2VsbC1j"},"created_at":"2024-11-27T20:01:50.171283653Z","cost":0},"event":{"broadcaster_user_id":"129546453","broadcaster_user_login":"nerixyz","broadcaster_user_name":"nerixyz","source_broadcaster_user_id":null,"source_broadcaster_user_login":null,"source_broadcaster_user_name":null,"moderator_user_id":"129546453","moderator_user_login":"nerixyz","moderator_user_name":"nerixyz","action":"timeout","followers":null,"slow":null,"vip":null,"unvip":null,"mod":null,"unmod":null,"ban":null,"unban":null,"timeout":{"user_id":"141981764","user_login":"twitchdev","user_name":"TwitchDev","reason":"test Kappa","expires_at":"2024-11-27T20:01:55.358149527Z"},"untimeout":null,"raid":null,"unraid":null,"delete":null,"automod_terms":null,"unban_request":null,"warn":null,"shared_chat_ban":null,"shared_chat_unban":null,"shared_chat_timeout":null,"shared_chat_untimeout":null,"shared_chat_delete":null}}}
+{"metadata":{"message_id":"beb72a37-0c04-4d7e-9934-f611ddc0e869","message_type":"notification","message_timestamp":"2024-05-14T12:31:47.995298776Z","subscription_type":"channel.update","subscription_version":"1"},"payload":{"subscription":{"id":"f1c2a387-161a-49f9-a165-0f21d7a4e1c4","type":"channel.update","version":"1","status":"enabled","cost":0,"condition":{"broadcaster_user_id":"1337"},"transport":{"method":"websocket","session_id":"AgoQUlB8aB2SSsavWVfcs5ljnBIGY2VsbC1j"},"created_at":"2019-11-16T10:11:12.123Z"},"event":{"broadcaster_user_id":"1337","broadcaster_user_login":"cool_user","broadcaster_user_name":"Cool_User","title":"Best Stream Ever","language":"en","category_id":"21779","category_name":"Fortnite","is_mature":false}}}
+{"metadata":{"message_id":"ee312d92-d9bb-4d4f-9e94-3a5e051940f3","message_type":"notification","message_timestamp":"2024-05-14T12:31:47.995298776Z","subscription_type":"stream.offline","subscription_version":"1"},"payload":{"subscription":{"id":"f1c2a387-161a-49f9-a165-0f21d7a4e1c4","type":"stream.offline","version":"1","status":"enabled","cost":0,"condition":{"broadcaster_user_id":"1337"},"created_at":"2019-11-16T10:11:12.123Z","transport":{"method":"websocket","session_id":"AgoQUlB8aB2SSsavWVfcs5ljnBIGY2VsbC1j"}},"event":{"broadcaster_user_id":"1337","broadcaster_user_login":"cool_user","broadcaster_user_name":"Cool_User"}}}
+{"metadata":{"message_id":"ecaf20f2-6b08-4a17-ba14-581130d93c95","message_type":"notification","message_timestamp":"2024-05-14T12:31:47.995298776Z","subscription_type":"stream.online","subscription_version":"1"},"payload":{"subscription":{"id":"f1c2a387-161a-49f9-a165-0f21d7a4e1c4","type":"stream.online","version":"1","status":"enabled","cost":0,"condition":{"broadcaster_user_id":"1337"},"transport":{"method":"websocket","session_id":"AgoQUlB8aB2SSsavWVfcs5ljnBIGY2VsbC1j"},"created_at":"2019-11-16T10:11:12.123Z"},"event":{"id":"9001","broadcaster_user_id":"1337","broadcaster_user_login":"cool_user","broadcaster_user_name":"Cool_User","type":"live","started_at":"2020-10-11T10:11:12.123Z"}}}
+{"metadata":{"message_id":"faf21c17-82d3-4479-8daa-295f16b706f0","message_type":"session_welcome","message_timestamp":"2023-07-19T14:56:51.634234626Z"},"payload":{"session":{"id":"AQoQILE98gtqShGmLD7AM6yJThAB","status":"connected","connected_at":"2023-07-19T14:56:51.616329898Z","keepalive_timeout_seconds":10,"reconnect_url":null}}}

lib/twitch-eventsub-ws/benchmarks/src/main.cpp

@@ -0,0 +1,3 @@
+#include <benchmark/benchmark.h>
+
+BENCHMARK_MAIN();

lib/twitch-eventsub-ws/benchmarks/src/parse.cpp

@@ -0,0 +1,130 @@
+#include "twitch-eventsub-ws/listener.hpp"
+#include "twitch-eventsub-ws/session.hpp"
+
+#include <benchmark/benchmark.h>
+#include <boost/beast/core/flat_buffer.hpp>
+#include <QFile>
+
+#include <memory>
+
+namespace {
+
+using namespace chatterino::eventsub::lib;
+
+std::vector<boost::beast::flat_buffer> readMessages()
+{
+    QFile file(":/bench/messages.ndjson");
+    assert(file.open(QFile::ReadOnly));
+
+    std::vector<boost::beast::flat_buffer> messages;
+    while (!file.atEnd())
+    {
+        QByteArray line = file.readLine();
+        if (line.isEmpty())
+        {
+            continue;
+        }
+
+        boost::beast::flat_buffer buf;
+        auto inner = buf.prepare(line.size());
+        std::memcpy(inner.data(), line.data(), inner.size());
+        buf.commit(inner.size());
+
+        messages.emplace_back(std::move(buf));
+    }
+    return messages;
+}
+
+class NoopListener : public Listener
+{
+public:
+    NoopListener() = default;
+
+    // NOLINTBEGIN(cppcoreguidelines-pro-type-const-cast)
+    void onSessionWelcome(messages::Metadata metadata,
+                          payload::session_welcome::Payload payload) override
+    {
+        benchmark::DoNotOptimize(&metadata);
+        benchmark::DoNotOptimize(&payload);
+    }
+
+    void onNotification(messages::Metadata metadata,
+                        const boost::json::value &jv) override
+    {
+        benchmark::DoNotOptimize(&metadata);
+        benchmark::DoNotOptimize(&jv);
+    }
+
+    void onChannelBan(messages::Metadata metadata,
+                      payload::channel_ban::v1::Payload payload) override
+    {
+        benchmark::DoNotOptimize(&metadata);
+        benchmark::DoNotOptimize(&payload);
+    }
+
+    void onStreamOnline(messages::Metadata metadata,
+                        payload::stream_online::v1::Payload payload) override
+    {
+        benchmark::DoNotOptimize(&metadata);
+        benchmark::DoNotOptimize(&payload);
+    }
+
+    void onStreamOffline(messages::Metadata metadata,
+                         payload::stream_offline::v1::Payload payload) override
+    {
+        benchmark::DoNotOptimize(&metadata);
+        benchmark::DoNotOptimize(&payload);
+    }
+
+    void onChannelChatNotification(
+        messages::Metadata metadata,
+        payload::channel_chat_notification::v1::Payload payload) override
+    {
+        benchmark::DoNotOptimize(&metadata);
+        benchmark::DoNotOptimize(&payload);
+    }
+
+    void onChannelUpdate(messages::Metadata metadata,
+                         payload::channel_update::v1::Payload payload) override
+    {
+        benchmark::DoNotOptimize(&metadata);
+        benchmark::DoNotOptimize(&payload);
+    }
+
+    void onChannelChatMessage(
+        messages::Metadata metadata,
+        payload::channel_chat_message::v1::Payload payload) override
+    {
+        benchmark::DoNotOptimize(&metadata);
+        benchmark::DoNotOptimize(&payload);
+    }
+
+    void onChannelModerate(
+        messages::Metadata metadata,
+        payload::channel_moderate::v2::Payload payload) override
+    {
+        benchmark::DoNotOptimize(&metadata);
+        benchmark::DoNotOptimize(&payload);
+    }
+    // NOLINTEND(cppcoreguidelines-pro-type-const-cast)
+};
+
+void BM_ParseAndHandleMessages(benchmark::State &state)
+{
+    auto messages = readMessages();
+
+    std::unique_ptr<Listener> listener = std::make_unique<NoopListener>();
+
+    for (auto _ : state)
+    {
+        for (const auto &msg : messages)
+        {
+            boost::system::error_code ec = handleMessage(listener, msg);
+            assert(!ec);
+        }
+    }
+}
+
+}  // namespace
+
+BENCHMARK(BM_ParseAndHandleMessages);

lib/twitch-eventsub-ws/include/twitch-eventsub-ws/payloads/channel-chat-notification-v1.hpp

@@ -58,9 +58,9 @@ struct Resubscription {
     int durationMonths;
     std::optional<int> streakMonths;
     std::string subTier;
-    bool isPrime;
+    std::optional<bool> isPrime;
     bool isGift;
-    bool gifterIsAnonymous;
+    std::optional<bool> gifterIsAnonymous;
     std::optional<std::string> gifterUserID;
     std::optional<std::string> gifterUserName;
     std::optional<std::string> gifterUserLogin;
@@ -162,9 +162,9 @@ struct Event {
     std::string broadcasterUserID;
     std::string broadcasterUserLogin;
     std::string broadcasterUserName;
-    std::string chatterUserID;
+    std::optional<std::string> chatterUserID;
-    std::string chatterUserLogin;
+    std::optional<std::string> chatterUserLogin;
-    std::string chatterUserName;
+    std::optional<std::string> chatterUserName;
     bool chatterIsAnonymous;
     std::string color;
     std::vector<Badge> badges;

lib/twitch-eventsub-ws/src/generated/payloads/channel-chat-notification-v1.cpp

@@ -471,17 +471,17 @@ boost::json::result_for<Resubscription, boost::json::value>::type tag_invoke(
 
     static_assert(std::is_trivially_copyable_v<std::remove_reference_t<
                       decltype(std::declval<Resubscription>().isPrime)>>);
+    std::optional<bool> isPrime = std::nullopt;
     const auto *jvisPrime = root.if_contains("is_prime");
-    if (jvisPrime == nullptr)
+    if (jvisPrime != nullptr && !jvisPrime->is_null())
     {
-        EVENTSUB_BAIL_HERE(error::Kind::FieldMissing);
+        auto tisPrime = boost::json::try_value_to<bool>(*jvisPrime);
-    }
 
-    auto isPrime = boost::json::try_value_to<bool>(*jvisPrime);
+        if (tisPrime.has_error())
-
+        {
-    if (isPrime.has_error())
+            return tisPrime.error();
-    {
+        }
-        return isPrime.error();
+        isPrime = tisPrime.value();
     }
 
     static_assert(std::is_trivially_copyable_v<std::remove_reference_t<
@@ -502,18 +502,18 @@ boost::json::result_for<Resubscription, boost::json::value>::type tag_invoke(
     static_assert(
         std::is_trivially_copyable_v<std::remove_reference_t<
             decltype(std::declval<Resubscription>().gifterIsAnonymous)>>);
+    std::optional<bool> gifterIsAnonymous = std::nullopt;
     const auto *jvgifterIsAnonymous = root.if_contains("gifter_is_anonymous");
-    if (jvgifterIsAnonymous == nullptr)
+    if (jvgifterIsAnonymous != nullptr && !jvgifterIsAnonymous->is_null())
     {
-        EVENTSUB_BAIL_HERE(error::Kind::FieldMissing);
+        auto tgifterIsAnonymous =
-    }
+            boost::json::try_value_to<bool>(*jvgifterIsAnonymous);
 
-    auto gifterIsAnonymous =
+        if (tgifterIsAnonymous.has_error())
-        boost::json::try_value_to<bool>(*jvgifterIsAnonymous);
+        {
-
+            return tgifterIsAnonymous.error();
-    if (gifterIsAnonymous.has_error())
+        }
-    {
+        gifterIsAnonymous = tgifterIsAnonymous.value();
-        return gifterIsAnonymous.error();
     }
 
     std::optional<std::string> gifterUserID = std::nullopt;
@@ -563,9 +563,9 @@ boost::json::result_for<Resubscription, boost::json::value>::type tag_invoke(
         .durationMonths = durationMonths.value(),
         .streakMonths = streakMonths,
         .subTier = std::move(subTier.value()),
-        .isPrime = isPrime.value(),
+        .isPrime = isPrime,
         .isGift = isGift.value(),
-        .gifterIsAnonymous = gifterIsAnonymous.value(),
+        .gifterIsAnonymous = gifterIsAnonymous,
         .gifterUserID = std::move(gifterUserID),
         .gifterUserName = std::move(gifterUserName),
         .gifterUserLogin = std::move(gifterUserLogin),
@@ -1327,46 +1327,46 @@ boost::json::result_for<Event, boost::json::value>::type tag_invoke(
         return broadcasterUserName.error();
     }
 
+    std::optional<std::string> chatterUserID = std::nullopt;
     const auto *jvchatterUserID = root.if_contains("chatter_user_id");
-    if (jvchatterUserID == nullptr)
+    if (jvchatterUserID != nullptr && !jvchatterUserID->is_null())
     {
-        EVENTSUB_BAIL_HERE(error::Kind::FieldMissing);
+        auto tchatterUserID =
-    }
+            boost::json::try_value_to<std::string>(*jvchatterUserID);
-
+
-    auto chatterUserID =
+        if (tchatterUserID.has_error())
-        boost::json::try_value_to<std::string>(*jvchatterUserID);
+        {
-
+            return tchatterUserID.error();
-    if (chatterUserID.has_error())
+        }
-    {
+        chatterUserID = std::move(tchatterUserID.value());
-        return chatterUserID.error();
     }
 
+    std::optional<std::string> chatterUserLogin = std::nullopt;
     const auto *jvchatterUserLogin = root.if_contains("chatter_user_login");
-    if (jvchatterUserLogin == nullptr)
+    if (jvchatterUserLogin != nullptr && !jvchatterUserLogin->is_null())
     {
-        EVENTSUB_BAIL_HERE(error::Kind::FieldMissing);
+        auto tchatterUserLogin =
-    }
+            boost::json::try_value_to<std::string>(*jvchatterUserLogin);
-
+
-    auto chatterUserLogin =
+        if (tchatterUserLogin.has_error())
-        boost::json::try_value_to<std::string>(*jvchatterUserLogin);
+        {
-
+            return tchatterUserLogin.error();
-    if (chatterUserLogin.has_error())
+        }
-    {
+        chatterUserLogin = std::move(tchatterUserLogin.value());
-        return chatterUserLogin.error();
     }
 
+    std::optional<std::string> chatterUserName = std::nullopt;
     const auto *jvchatterUserName = root.if_contains("chatter_user_name");
-    if (jvchatterUserName == nullptr)
+    if (jvchatterUserName != nullptr && !jvchatterUserName->is_null())
     {
-        EVENTSUB_BAIL_HERE(error::Kind::FieldMissing);
+        auto tchatterUserName =
-    }
+            boost::json::try_value_to<std::string>(*jvchatterUserName);
 
-    auto chatterUserName =
+        if (tchatterUserName.has_error())
-        boost::json::try_value_to<std::string>(*jvchatterUserName);
+        {
-
+            return tchatterUserName.error();
-    if (chatterUserName.has_error())
+        }
-    {
+        chatterUserName = std::move(tchatterUserName.value());
-        return chatterUserName.error();
     }
 
     static_assert(std::is_trivially_copyable_v<std::remove_reference_t<
@@ -1656,9 +1656,9 @@ boost::json::result_for<Event, boost::json::value>::type tag_invoke(
         .broadcasterUserID = std::move(broadcasterUserID.value()),
         .broadcasterUserLogin = std::move(broadcasterUserLogin.value()),
         .broadcasterUserName = std::move(broadcasterUserName.value()),
-        .chatterUserID = std::move(chatterUserID.value()),
+        .chatterUserID = std::move(chatterUserID),
-        .chatterUserLogin = std::move(chatterUserLogin.value()),
+        .chatterUserLogin = std::move(chatterUserLogin),
-        .chatterUserName = std::move(chatterUserName.value()),
+        .chatterUserName = std::move(chatterUserName),
         .chatterIsAnonymous = chatterIsAnonymous.value(),
         .color = std::move(color.value()),
         .badges = std::move(vbadges),

lib/twitch-eventsub-ws/src/session.cpp

@@ -32,14 +32,15 @@ using EventSubSubscription = std::pair<std::string, std::string>;
 
 using NotificationHandlers = std::unordered_map<
     EventSubSubscription,
-    std::function<void(messages::Metadata, boost::json::value,
+    std::function<boost::system::error_code(
-                       std::unique_ptr<Listener> &)>,
+        messages::Metadata, boost::json::value, std::unique_ptr<Listener> &)>,
     boost::hash<EventSubSubscription>>;
 
-using MessageHandlers = std::unordered_map<
+using MessageHandlers =
-    std::string, std::function<void(messages::Metadata, boost::json::value,
+    std::unordered_map<std::string, std::function<boost::system::error_code(
-                                    std::unique_ptr<Listener> &,
+                                        messages::Metadata, boost::json::value,
-                                    const NotificationHandlers &)>>;
+                                        std::unique_ptr<Listener> &,
+                                        const NotificationHandlers &)>>;
 
 namespace {
 
@@ -51,13 +52,12 @@ namespace {
     }
 
     template <class T>
-    std::optional<T> parsePayload(const boost::json::value &jv)
+    boost::system::result<T> parsePayload(const boost::json::value &jv)
     {
         auto result = boost::json::try_value_to<T>(jv);
         if (!result.has_value())
         {
-            fail(result.error(), "parsing payload");
+            return result.error();
-            return std::nullopt;
         }
 
         return std::move(result.value());
@@ -72,9 +72,10 @@ namespace {
                     parsePayload<payload::channel_ban::v1::Payload>(jv);
                 if (!oPayload)
                 {
-                    return;
+                    return oPayload.error();
                 }
                 listener->onChannelBan(metadata, *oPayload);
+                return boost::system::error_code{};
             },
         },
         {
@@ -84,9 +85,10 @@ namespace {
                     parsePayload<payload::stream_online::v1::Payload>(jv);
                 if (!oPayload)
                 {
-                    return;
+                    return oPayload.error();
                 }
                 listener->onStreamOnline(metadata, *oPayload);
+                return boost::system::error_code{};
             },
         },
         {
@@ -96,9 +98,10 @@ namespace {
                     parsePayload<payload::stream_offline::v1::Payload>(jv);
                 if (!oPayload)
                 {
-                    return;
+                    return oPayload.error();
                 }
                 listener->onStreamOffline(metadata, *oPayload);
+                return boost::system::error_code{};
             },
         },
         {
@@ -108,9 +111,10 @@ namespace {
                     payload::channel_chat_notification::v1::Payload>(jv);
                 if (!oPayload)
                 {
-                    return;
+                    return oPayload.error();
                 }
                 listener->onChannelChatNotification(metadata, *oPayload);
+                return boost::system::error_code{};
             },
         },
         {
@@ -120,9 +124,10 @@ namespace {
                     parsePayload<payload::channel_update::v1::Payload>(jv);
                 if (!oPayload)
                 {
-                    return;
+                    return oPayload.error();
                 }
                 listener->onChannelUpdate(metadata, *oPayload);
+                return boost::system::error_code{};
             },
         },
         {
@@ -133,9 +138,10 @@ namespace {
                         jv);
                 if (!oPayload)
                 {
-                    return;
+                    return oPayload.error();
                 }
                 listener->onChannelChatMessage(metadata, *oPayload);
+                return boost::system::error_code{};
             },
         },
         {
@@ -145,9 +151,10 @@ namespace {
                     parsePayload<payload::channel_moderate::v2::Payload>(jv);
                 if (!oPayload)
                 {
-                    return;
+                    return oPayload.error();
                 }
                 listener->onChannelModerate(metadata, std::move(*oPayload));
+                return boost::system::error_code{};
             },
         },
         // Add your new subscription types above this line
@@ -163,11 +170,12 @@ namespace {
                 if (!oPayload)
                 {
                     // TODO: error handling
-                    return;
+                    return oPayload.error();
                 }
                 const auto &payload = *oPayload;
 
                 listener->onSessionWelcome(metadata, payload);
+                return boost::system::error_code{};
             },
         },
         {
@@ -175,6 +183,7 @@ namespace {
             [](const auto &metadata, const auto &jv, auto &listener,
                const auto &notificationHandlers) {
                 // TODO: should we do something here?
+                return boost::system::error_code{};
             },
         },
         {
@@ -186,7 +195,7 @@ namespace {
                 if (!metadata.subscriptionType || !metadata.subscriptionVersion)
                 {
                     // TODO: error handling
-                    return;
+                    return boost::system::error_code{};
                 }
 
                 auto it =
@@ -194,11 +203,10 @@ namespace {
                                                *metadata.subscriptionVersion});
                 if (it == notificationHandlers.end())
                 {
-                    // TODO: error handling
+                    EVENTSUB_BAIL_HERE(error::Kind::NoMessageHandler);
-                    return;
                 }
 
-                it->second(metadata, jv, listener);
+                return it->second(metadata, jv, listener);
             },
         },
     };
@@ -251,9 +259,8 @@ boost::system::error_code handleMessage(std::unique_ptr<Listener> &listener,
         EVENTSUB_BAIL_HERE(error::Kind::FieldMissing);
     }
 
-    handler->second(metadata, *payloadV, listener, NOTIFICATION_HANDLERS);
+    return handler->second(metadata, *payloadV, listener,
-
+                           NOTIFICATION_HANDLERS);
-    return {};
 }
 
 // Resolver and socket require an io_context
@@ -396,7 +403,7 @@ void Session::onRead(beast::error_code ec, std::size_t bytes_transferred)
     auto messageError = handleMessage(this->listener, this->buffer);
     if (messageError)
     {
-        return fail(messageError, "handleMessage");
+        fail(messageError, "handleMessage");
     }
 
     this->buffer.clear();

lib/twitch-eventsub-ws/tests/CMakeLists.txt

@@ -0,0 +1,23 @@
+project(twitch-eventsub-ws-test)
+
+set(SOURCES
+    src/parse.cpp
+)
+
+add_executable(${PROJECT_NAME} ${SOURCES})
+add_sanitizers(${PROJECT_NAME})
+
+target_link_libraries(${PROJECT_NAME} PRIVATE twitch-eventsub-ws GTest::gtest_main)
+
+set_target_properties(${PROJECT_NAME}
+    PROPERTIES
+        RUNTIME_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/bin"
+        CXX_STANDARD 20
+)
+
+if(MSVC)
+    target_compile_options(${PROJECT_NAME} PRIVATE /EHsc /bigobj)
+endif()
+
+include(GoogleTest)
+gtest_discover_tests(${PROJECT_NAME})

lib/twitch-eventsub-ws/tests/resources/messages/channel.ban.json

@@ -0,0 +1,36 @@
+{
+  "metadata": {
+    "message_id": "e6095757-c068-4a97-b6b4-46cb45c8d507",
+    "message_type": "notification",
+    "message_timestamp": "2023-05-14T12:31:47.995298776Z",
+    "subscription_type": "channel.ban",
+    "subscription_version": "1"
+  },
+  "payload": {
+    "subscription": {
+      "id": "4aa632e0-fca3-590b-e981-bbd12abdb3fe",
+      "status": "enabled",
+      "type": "channel.ban",
+      "version": "1",
+      "condition": { "broadcaster_user_id": "74378979" },
+      "transport": { "method": "websocket", "session_id": "38de428e_b11f07be" },
+      "created_at": "2023-05-20T12:30:55.518375571Z",
+      "cost": 0
+    },
+    "event": {
+      "banned_at": "2023-05-20T12:30:55.518375571Z",
+      "broadcaster_user_id": "74378979",
+      "broadcaster_user_login": "testBroadcaster",
+      "broadcaster_user_name": "testBroadcaster",
+      "ends_at": "2023-05-20T12:40:55.518375571Z",
+      "is_permanent": false,
+      "moderator_user_id": "29024944",
+      "moderator_user_login": "CLIModerator",
+      "moderator_user_name": "CLIModerator",
+      "reason": "This is a test event",
+      "user_id": "40389552",
+      "user_login": "testFromUser",
+      "user_name": "testFromUser"
+    }
+  }
+}

lib/twitch-eventsub-ws/tests/resources/messages/channel.chat.message.json

@@ -0,0 +1,60 @@
+{
+  "metadata": {
+    "message_id": "7d9daa03-06f0-43ef-94d8-b22e8662bb99",
+    "message_type": "notification",
+    "message_timestamp": "2024-05-14T12:31:47.995298776Z",
+    "subscription_type": "channel.chat.message",
+    "subscription_version": "1"
+  },
+  "payload": {
+    "subscription": {
+      "id": "0b7f3361-672b-4d39-b307-dd5b576c9b27",
+      "status": "enabled",
+      "type": "channel.chat.message",
+      "version": "1",
+      "condition": { "broadcaster_user_id": "1971641", "user_id": "2914196" },
+      "transport": {
+        "method": "websocket",
+        "session_id": "AgoQHR3s6Mb4T8GFB1l3DlPfiRIGY2VsbC1h"
+      },
+      "created_at": "2023-11-06T18:11:47.492253549Z",
+      "cost": 0
+    },
+    "event": {
+      "broadcaster_user_id": "1971641",
+      "broadcaster_user_login": "streamer",
+      "broadcaster_user_name": "streamer",
+      "chatter_user_id": "4145994",
+      "chatter_user_login": "viewer32",
+      "chatter_user_name": "viewer32",
+      "message_id": "cc106a89-1814-919d-454c-f4f2f970aae7",
+      "message": {
+        "text": "Hi chat",
+        "fragments": [
+          {
+            "type": "text",
+            "text": "Hi chat",
+            "cheermote": null,
+            "emote": null,
+            "mention": null
+          }
+        ]
+      },
+      "color": "#00FF7F",
+      "badges": [
+        { "set_id": "moderator", "id": "1", "info": "" },
+        { "set_id": "subscriber", "id": "12", "info": "16" },
+        { "set_id": "sub-gifter", "id": "1", "info": "" }
+      ],
+      "message_type": "text",
+      "cheer": null,
+      "reply": null,
+      "channel_points_custom_reward_id": null,
+      "source_broadcaster_user_id": "112233",
+      "source_broadcaster_user_login": "streamer33",
+      "source_broadcaster_user_name": "streamer33",
+      "source_message_id": "e03f6d5d-8ec8-4c63-b473-9e5fe61e289b",
+      "source_badges": [{ "set_id": "subscriber", "id": "3", "info": "3" }]
+    }
+  }
+}

lib/twitch-eventsub-ws/tests/resources/messages/channel.chat.notification-community-sub-gift.json

@@ -0,0 +1,56 @@
+{
+  "metadata": {
+    "message_id": "dad488f6-ee77-472c-a113-be158651a28e",
+    "message_type": "notification",
+    "message_timestamp": "2024-05-14T12:31:47.995298776Z",
+    "subscription_type": "channel.chat.notification",
+    "subscription_version": "1"
+  },
+  "payload": {
+    "subscription": {
+      "id": "f6b57ae8-add7-4faa-a396-4d6c87cb1337",
+      "status": "enabled",
+      "type": "channel.chat.notification",
+      "version": "1",
+      "condition": { "broadcaster_user_id": "1337", "user_id": "27620241" },
+      "transport": {
+        "method": "websocket",
+        "session_id": "AgoQ_ZPE5-zrR2W3HJjkQxrFfxIGY2Vs1337"
+      },
+      "created_at": "2023-11-20T09:52:07.940291459Z",
+      "cost": 0
+    },
+    "event": {
+      "broadcaster_user_id": "1337",
+      "broadcaster_user_login": "cool_user",
+      "broadcaster_user_name": "Cool_User",
+      "chatter_user_id": null,
+      "chatter_user_login": null,
+      "chatter_user_name": null,
+      "chatter_is_anonymous": true,
+      "color": "",
+      "badges": [],
+      "system_message": "An anonymous user is gifting 1 Tier 1 Subs to Cool_User's community!",
+      "message_id": "fa2135ca-34da-413f-1337-4efa3c9a6bac",
+      "message": { "text": "", "fragments": [] },
+      "notice_type": "community_sub_gift",
+      "sub": null,
+      "resub": null,
+      "sub_gift": null,
+      "community_sub_gift": {
+        "id": "12111455614691086753",
+        "total": 1,
+        "cumulative_total": null,
+        "sub_tier": "1000"
+      },
+      "gift_paid_upgrade": null,
+      "prime_paid_upgrade": null,
+      "pay_it_forward": null,
+      "raid": null,
+      "unraid": null,
+      "announcement": null,
+      "bits_badge_tier": null,
+      "charity_donation": null
+    }
+  }
+}

lib/twitch-eventsub-ws/tests/resources/messages/channel.chat.notification-pay-it-forward.json

@@ -0,0 +1,62 @@
+{
+  "metadata": {
+    "message_id": "2246f78c-ce7b-4639-836b-d3bddc3f65ef",
+    "message_type": "notification",
+    "message_timestamp": "2024-05-14T12:31:47.995298776Z",
+    "subscription_type": "channel.chat.notification",
+    "subscription_version": "1"
+  },
+  "payload": {
+    "subscription": {
+      "id": "96f9a91e-f1e0-43af-82ac-a6e934778805",
+      "status": "enabled",
+      "type": "channel.chat.notification",
+      "version": "1",
+      "condition": {
+        "broadcaster_user_id": "165080419",
+        "user_id": "27620241"
+      },
+      "transport": {
+        "method": "websocket",
+        "session_id": "AgoQUlB8aB2SSsavWVfcs5ljnBIGY2VsbC1j"
+      },
+      "created_at": "2023-11-20T16:41:22.999246448Z",
+      "cost": 0
+    },
+    "event": {
+      "broadcaster_user_id": "165080419",
+      "broadcaster_user_login": "elraenn",
+      "broadcaster_user_name": "Elraenn",
+      "chatter_user_id": "425829220",
+      "chatter_user_login": "kecogluali5",
+      "chatter_user_name": "Kecogluali5",
+      "chatter_is_anonymous": false,
+      "color": "#0000FF",
+      "badges": [{ "set_id": "subscriber", "id": "12", "info": "12" }],
+      "system_message": "Kecogluali5 is paying forward the Gift they got from CasinoZEBERUS to the community!",
+      "message_id": "573a20ff-8f88-499e-be2b-c7079eb76f6c",
+      "message": { "text": "", "fragments": [] },
+      "notice_type": "pay_it_forward",
+      "sub": null,
+      "resub": null,
+      "sub_gift": null,
+      "community_sub_gift": null,
+      "gift_paid_upgrade": null,
+      "prime_paid_upgrade": null,
+      "pay_it_forward": {
+        "recipient_user_id": null,
+        "recipient_user_name": null,
+        "recipient_user_login": null,
+        "gifter_is_anonymous": false,
+        "gifter_user_id": "967793245",
+        "gifter_user_name": "CasinoZEBERUS",
+        "gifter_user_login": "casinozeberus"
+      },
+      "raid": null,
+      "unraid": null,
+      "announcement": null,
+      "bits_badge_tier": null,
+      "charity_donation": null
+    }
+  }
+}

lib/twitch-eventsub-ws/tests/resources/messages/channel.chat.notification-resub-2.json

@@ -0,0 +1,75 @@
+{
+  "metadata": {
+    "message_id": "ae24c14e-2e34-4d78-99b0-9c5586a47cd9",
+    "message_type": "notification",
+    "message_timestamp": "2024-05-14T12:31:47.995298776Z",
+    "subscription_type": "channel.chat.notification",
+    "subscription_version": "1"
+  },
+  "payload": {
+    "subscription": {
+      "id": "dc1a3cfc-a930-4972-bf9e-0ffc4e7a8996",
+      "status": "enabled",
+      "type": "channel.chat.notification",
+      "version": "1",
+      "condition": { "broadcaster_user_id": "1971641", "user_id": "2914196" },
+      "transport": {
+        "method": "websocket",
+        "session_id": "AgoQOtgGkFvXRlSkij343CndhIGY2VsbC1h"
+      },
+      "created_at": "2023-10-06T18:04:38.807682738Z",
+      "cost": 0
+    },
+    "event": {
+      "broadcaster_user_id": "1971641",
+      "broadcaster_user_login": "streamer",
+      "broadcaster_user_name": "streamer",
+      "chatter_user_id": "49912639",
+      "chatter_user_login": "viewer23",
+      "chatter_user_name": "viewer23",
+      "chatter_is_anonymous": false,
+      "color": "",
+      "badges": [],
+      "system_message": "viewer23 subscribed at Tier 1. They've subscribed for 10 months!",
+      "message_id": "d62235c8-47ff-a4f4--84e8-5a29a65a9c03",
+      "message": { "text": "", "fragments": [] },
+      "notice_type": "resub",
+      "sub": null,
+      "resub": {
+        "cumulative_months": 10,
+        "duration_months": 0,
+        "streak_months": null,
+        "sub_tier": "1000",
+        "is_gift": false,
+        "gifter_is_anonymous": null,
+        "gifter_user_id": null,
+        "gifter_user_name": null,
+        "gifter_user_login": null
+      },
+      "sub_gift": null,
+      "community_sub_gift": null,
+      "gift_paid_upgrade": null,
+      "prime_paid_upgrade": null,
+      "pay_it_forward": null,
+      "raid": null,
+      "unraid": null,
+      "announcement": null,
+      "bits_badge_tier": null,
+      "charity_donation": null,
+      "shared_chat_sub": null,
+      "shared_chat_resub": null,
+      "shared_chat_sub_gift": null,
+      "shared_chat_community_sub_gift": null,
+      "shared_chat_gift_paid_upgrade": null,
+      "shared_chat_prime_paid_upgrade": null,
+      "shared_chat_pay_it_forward": null,
+      "shared_chat_raid": null,
+      "shared_chat_announcement": null,
+      "source_broadcaster_user_id": null,
+      "source_broadcaster_user_login": null,
+      "source_broadcaster_user_name": null,
+      "source_message_id": null,
+      "source_badges": null
+    }
+  }
+}

lib/twitch-eventsub-ws/tests/resources/messages/channel.chat.notification-resub-msg.json

@@ -0,0 +1,77 @@
+{
+  "metadata": {
+    "message_id": "8466103d-5c96-4a92-b6ae-8a1a5ab9d22b",
+    "message_type": "notification",
+    "message_timestamp": "2024-05-14T12:31:47.995298776Z",
+    "subscription_type": "channel.chat.notification",
+    "subscription_version": "1"
+  },
+  "payload": {
+    "subscription": {
+      "id": "2237f256-1b83-4ec9-956e-c3578925e8e6",
+      "status": "enabled",
+      "type": "channel.chat.notification",
+      "version": "1",
+      "condition": { "broadcaster_user_id": "67931625", "user_id": "27620241" },
+      "transport": {
+        "method": "websocket",
+        "session_id": "AgoQuf4yiyFuTd64mlIG4zbSOxIGY2VsbC1j"
+      },
+      "created_at": "2023-11-19T22:08:49.127052362Z",
+      "cost": 0
+    },
+    "event": {
+      "broadcaster_user_id": "67931625",
+      "broadcaster_user_login": "amar",
+      "broadcaster_user_name": "Amar",
+      "chatter_user_id": "101572475",
+      "chatter_user_login": "justinfan",
+      "chatter_user_name": "justinfan",
+      "chatter_is_anonymous": false,
+      "color": "#FA6E02",
+      "badges": [
+        { "set_id": "moderator", "id": "1", "info": "" },
+        { "set_id": "subscriber", "id": "48", "info": "58" },
+        { "set_id": "partner", "id": "1", "info": "" }
+      ],
+      "system_message": "justinfan subscribed at Tier 1. They've subscribed for 58 months!",
+      "message_id": "aaa15585-0f43-4c32-8c48-56d58e9567a7",
+      "message": {
+        "text": "GIB MIR DEN POKAL",
+        "fragments": [
+          {
+            "type": "text",
+            "text": "GIB MIR DEN POKAL",
+            "cheermote": null,
+            "emote": null,
+            "mention": null
+          }
+        ]
+      },
+      "notice_type": "resub",
+      "sub": null,
+      "resub": {
+        "cumulative_months": 58,
+        "duration_months": 0,
+        "streak_months": null,
+        "sub_tier": "1000",
+        "is_prime": false,
+        "is_gift": false,
+        "gifter_is_anonymous": null,
+        "gifter_user_id": null,
+        "gifter_user_name": null,
+        "gifter_user_login": null
+      },
+      "sub_gift": null,
+      "community_sub_gift": null,
+      "gift_paid_upgrade": null,
+      "prime_paid_upgrade": null,
+      "pay_it_forward": null,
+      "raid": null,
+      "unraid": null,
+      "announcement": null,
+      "bits_badge_tier": null,
+      "charity_donation": null
+    }
+  }
+}

lib/twitch-eventsub-ws/tests/resources/messages/channel.chat.notification-resub.json

@@ -0,0 +1,65 @@
+{
+  "metadata": {
+    "message_id": "333c1c6a-475f-4c7a-bb16-fe0ae443ac32",
+    "message_type": "notification",
+    "message_timestamp": "2024-05-14T12:31:47.995298776Z",
+    "subscription_type": "channel.chat.notification",
+    "subscription_version": "1"
+  },
+  "payload": {
+    "subscription": {
+      "id": "96f9a91e-f1e0-43af-82ac-a6e934771337",
+      "status": "enabled",
+      "type": "channel.chat.notification",
+      "version": "1",
+      "condition": {
+        "broadcaster_user_id": "165081337",
+        "user_id": "27620241"
+      },
+      "transport": {
+        "method": "websocket",
+        "session_id": "AgoQUlB8aB2SSsavWVfcs5ljnBIGY2Vs1337"
+      },
+      "created_at": "2023-11-20T16:41:22.999246448Z",
+      "cost": 0
+    },
+    "event": {
+      "broadcaster_user_id": "1337",
+      "broadcaster_user_login": "Cool_User",
+      "broadcaster_user_name": "cool_user",
+      "chatter_user_id": "5678",
+      "chatter_user_login": "someone1",
+      "chatter_user_name": "someone1",
+      "chatter_is_anonymous": false,
+      "color": "",
+      "badges": [{ "set_id": "subscriber", "id": "2", "info": "2" }],
+      "system_message": "someone1 subscribed at Tier 1. They've subscribed for 2 months!",
+      "message_id": "101ab672-fcde-4d71-8011-ac2859786cea",
+      "message": { "text": "", "fragments": [] },
+      "notice_type": "resub",
+      "sub": null,
+      "resub": {
+        "cumulative_months": 2,
+        "duration_months": 0,
+        "streak_months": null,
+        "sub_tier": "1000",
+        "is_prime": false,
+        "is_gift": true,
+        "gifter_is_anonymous": false,
+        "gifter_user_id": "1234",
+        "gifter_user_name": "justinfan1",
+        "gifter_user_login": "justinfan1"
+      },
+      "sub_gift": null,
+      "community_sub_gift": null,
+      "gift_paid_upgrade": null,
+      "prime_paid_upgrade": null,
+      "pay_it_forward": null,
+      "raid": null,
+      "unraid": null,
+      "announcement": null,
+      "bits_badge_tier": null,
+      "charity_donation": null
+    }
+  }
+}

lib/twitch-eventsub-ws/tests/resources/messages/channel.chat.notification-shared-chat-resub.json

@@ -0,0 +1,78 @@
+{
+  "metadata": {
+    "message_id": "be5c6e89-13b4-48cf-ab04-f83ca62b0b57",
+    "message_type": "notification",
+    "message_timestamp": "2024-05-14T12:31:47.995298776Z",
+    "subscription_type": "channel.chat.notification",
+    "subscription_version": "1"
+  },
+  "payload": {
+    "subscription": {
+      "id": "dc1a3cfc-a930-4972-bf9e-0ffc4e7a8996",
+      "status": "enabled",
+      "type": "channel.chat.notification",
+      "version": "1",
+      "condition": { "broadcaster_user_id": "1971641", "user_id": "2914196" },
+      "transport": {
+        "method": "websocket",
+        "session_id": "AgoQOtgGkFvXRlSkij343CndhIGY2VsbC1h"
+      },
+      "created_at": "2023-10-06T18:04:38.807682738Z",
+      "cost": 0
+    },
+    "event": {
+      "broadcaster_user_id": "1971641",
+      "broadcaster_user_login": "streamer",
+      "broadcaster_user_name": "streamer",
+      "chatter_user_id": "49912639",
+      "chatter_user_login": "viewer23",
+      "chatter_user_name": "viewer23",
+      "chatter_is_anonymous": false,
+      "color": "",
+      "badges": [],
+      "system_message": "viewer23 subscribed at Tier 1. They've subscribed for 10 months!",
+      "message_id": "d62235c8-47ff-a4f4--84e8-5a29a65a9c03",
+      "message": { "text": "", "fragments": [] },
+      "notice_type": "shared_chat_resub",
+      "sub": null,
+      "resub": null,
+      "sub_gift": null,
+      "community_sub_gift": null,
+      "gift_paid_upgrade": null,
+      "prime_paid_upgrade": null,
+      "pay_it_forward": null,
+      "raid": null,
+      "unraid": null,
+      "announcement": null,
+      "bits_badge_tier": null,
+      "charity_donation": null,
+      "shared_chat_sub": null,
+      "shared_chat_resub": {
+        "cumulative_months": 10,
+        "duration_months": 0,
+        "streak_months": null,
+        "sub_tier": "1000",
+        "is_gift": false,
+        "gifter_is_anonymous": null,
+        "gifter_user_id": null,
+        "gifter_user_name": null,
+        "gifter_user_login": null
+      },
+      "shared_chat_sub_gift": null,
+      "shared_chat_community_sub_gift": null,
+      "shared_chat_gift_paid_upgrade": null,
+      "shared_chat_prime_paid_upgrade": null,
+      "shared_chat_pay_it_forward": null,
+      "shared_chat_raid": null,
+      "shared_chat_unraid": null,
+      "shared_chat_announcement": null,
+      "shared_chat_bits_badge_tier": null,
+      "shared_chat_charity_donation": null,
+      "source_broadcaster_user_id": "112233",
+      "source_broadcaster_user_login": "streamer33",
+      "source_broadcaster_user_name": "streamer33",
+      "source_message_id": "2be7193d-0366-4453-b6ec-b288ce9f2c39",
+      "source_badges": [{ "set_id": "subscriber", "id": "3", "info": "3" }]
+    }
+  }
+}

lib/twitch-eventsub-ws/tests/resources/messages/channel.moderate-emoteonly.json

@@ -0,0 +1,57 @@
+{
+  "metadata": {
+    "message_id": "c5c679a1-f99d-4863-9f57-c434b10dc39d",
+    "message_type": "notification",
+    "message_timestamp": "2024-05-14T12:31:47.995298776Z",
+    "subscription_type": "channel.moderate",
+    "subscription_version": "2"
+  },
+  "payload": {
+    "subscription": {
+      "id": "7297f7eb-3bf5-461f-8ae6-7cd7781ebce3",
+      "status": "enabled",
+      "type": "channel.moderate",
+      "version": "2",
+      "cost": 0,
+      "condition": {
+        "broadcaster_user_id": "423374343",
+        "moderator_user_id": "423374343"
+      },
+      "transport": {
+        "method": "websocket",
+        "session_id": "AgoQUlB8aB2SSsavWVfcs5ljnBIGY2VsbC1j"
+      },
+      "created_at": "2024-02-23T21:12:33.771005262Z"
+    },
+    "event": {
+      "broadcaster_user_id": "423374343",
+      "broadcaster_user_login": "glowillig",
+      "broadcaster_user_name": "glowillig",
+      "moderator_user_id": "424596340",
+      "moderator_user_login": "quotrok",
+      "moderator_user_name": "quotrok",
+      "action": "emoteonly",
+      "followers": null,
+      "slow": null,
+      "vip": null,
+      "unvip": null,
+      "mod": null,
+      "unmod": null,
+      "ban": null,
+      "unban": null,
+      "warn": null,
+      "timeout": null,
+      "untimeout": null,
+      "raid": null,
+      "unraid": null,
+      "delete": null,
+      "automod_terms": null,
+      "unban_request": null,
+      "shared_chat_ban": null,
+      "shared_chat_unban": null,
+      "shared_chat_timeout": null,
+      "shared_chat_untimeout": null,
+      "shared_chat_delete": null
+    }
+  }
+}

lib/twitch-eventsub-ws/tests/resources/messages/channel.moderate-followers.json

@@ -0,0 +1,60 @@
+{
+  "metadata": {
+    "message_id": "0a0741bb-eb9f-4337-9581-d088c2acc3b2",
+    "message_type": "notification",
+    "message_timestamp": "2024-05-14T12:31:47.995298776Z",
+    "subscription_type": "channel.moderate",
+    "subscription_version": "2"
+  },
+  "payload": {
+    "subscription": {
+      "id": "86d99e53-2837-40cf-bc6e-c6e00698919c",
+      "status": "enabled",
+      "type": "channel.moderate",
+      "version": "2",
+      "condition": {
+        "broadcaster_user_id": "11148817",
+        "moderator_user_id": "117166826"
+      },
+      "transport": {
+        "method": "websocket",
+        "session_id": "AgoQZgfnyKxXQ32hpzCWF4aCGBIGY2VsbC1j"
+      },
+      "created_at": "2025-02-01T12:02:16.005321321Z",
+      "cost": 0
+    },
+    "event": {
+      "broadcaster_user_id": "11148817",
+      "broadcaster_user_login": "pajlada",
+      "broadcaster_user_name": "pajlada",
+      "source_broadcaster_user_id": null,
+      "source_broadcaster_user_login": null,
+      "source_broadcaster_user_name": null,
+      "moderator_user_id": "11148817",
+      "moderator_user_login": "pajlada",
+      "moderator_user_name": "pajlada",
+      "action": "followers",
+      "followers": { "follow_duration_minutes": 10080 },
+      "slow": null,
+      "vip": null,
+      "unvip": null,
+      "mod": null,
+      "unmod": null,
+      "ban": null,
+      "unban": null,
+      "timeout": null,
+      "untimeout": null,
+      "raid": null,
+      "unraid": null,
+      "delete": null,
+      "automod_terms": null,
+      "unban_request": null,
+      "warn": null,
+      "shared_chat_ban": null,
+      "shared_chat_unban": null,
+      "shared_chat_timeout": null,
+      "shared_chat_untimeout": null,
+      "shared_chat_delete": null
+    }
+  }
+}

lib/twitch-eventsub-ws/tests/resources/messages/channel.moderate-followersoff.json

@@ -0,0 +1,60 @@
+{
+  "metadata": {
+    "message_id": "b3426fa4-f7b0-4d20-827f-f620d9b9bce0",
+    "message_type": "notification",
+    "message_timestamp": "2024-05-14T12:31:47.995298776Z",
+    "subscription_type": "channel.moderate",
+    "subscription_version": "2"
+  },
+  "payload": {
+    "subscription": {
+      "id": "86d99e53-2837-40cf-bc6e-c6e00698919c",
+      "status": "enabled",
+      "type": "channel.moderate",
+      "version": "2",
+      "condition": {
+        "broadcaster_user_id": "11148817",
+        "moderator_user_id": "117166826"
+      },
+      "transport": {
+        "method": "websocket",
+        "session_id": "AgoQZgfnyKxXQ32hpzCWF4aCGBIGY2VsbC1j"
+      },
+      "created_at": "2025-02-01T12:02:16.005321321Z",
+      "cost": 0
+    },
+    "event": {
+      "broadcaster_user_id": "11148817",
+      "broadcaster_user_login": "pajlada",
+      "broadcaster_user_name": "pajlada",
+      "source_broadcaster_user_id": null,
+      "source_broadcaster_user_login": null,
+      "source_broadcaster_user_name": null,
+      "moderator_user_id": "11148817",
+      "moderator_user_login": "pajlada",
+      "moderator_user_name": "pajlada",
+      "action": "followersoff",
+      "followers": null,
+      "slow": null,
+      "vip": null,
+      "unvip": null,
+      "mod": null,
+      "unmod": null,
+      "ban": null,
+      "unban": null,
+      "timeout": null,
+      "untimeout": null,
+      "raid": null,
+      "unraid": null,
+      "delete": null,
+      "automod_terms": null,
+      "unban_request": null,
+      "warn": null,
+      "shared_chat_ban": null,
+      "shared_chat_unban": null,
+      "shared_chat_timeout": null,
+      "shared_chat_untimeout": null,
+      "shared_chat_delete": null
+    }
+  }
+}

lib/twitch-eventsub-ws/tests/resources/messages/channel.moderate-mod.json

@@ -0,0 +1,61 @@
+{
+  "metadata": {
+    "message_id": "cf0534f2-a006-4c83-a958-346333bb631f",
+    "message_type": "notification",
+    "message_timestamp": "2024-05-14T12:31:47.995298776Z",
+    "subscription_type": "channel.moderate",
+    "subscription_version": "2"
+  },
+  "payload": {
+    "subscription": {
+      "id": "7297f7eb-3bf5-461f-8ae6-7cd7781ebce3",
+      "status": "enabled",
+      "type": "channel.moderate",
+      "version": "2",
+      "cost": 0,
+      "condition": {
+        "broadcaster_user_id": "423374343",
+        "moderator_user_id": "423374343"
+      },
+      "transport": {
+        "method": "websocket",
+        "session_id": "AgoQUlB8aB2SSsavWVfcs5ljnBIGY2VsbC1j"
+      },
+      "created_at": "2024-02-23T21:12:33.771005262Z"
+    },
+    "event": {
+      "broadcaster_user_id": "423374343",
+      "broadcaster_user_login": "glowillig",
+      "broadcaster_user_name": "glowillig",
+      "moderator_user_id": "424596340",
+      "moderator_user_login": "quotrok",
+      "moderator_user_name": "quotrok",
+      "action": "mod",
+      "followers": null,
+      "slow": null,
+      "vip": null,
+      "unvip": null,
+      "warn": null,
+      "mod": {
+        "user_id": "141981764",
+        "user_login": "twitchdev",
+        "user_name": "TwitchDev"
+      },
+      "unmod": null,
+      "ban": null,
+      "unban": null,
+      "timeout": null,
+      "untimeout": null,
+      "raid": null,
+      "unraid": null,
+      "delete": null,
+      "automod_terms": null,
+      "unban_request": null,
+      "shared_chat_ban": null,
+      "shared_chat_unban": null,
+      "shared_chat_timeout": null,
+      "shared_chat_untimeout": null,
+      "shared_chat_delete": null
+    }
+  }
+}

lib/twitch-eventsub-ws/tests/resources/messages/channel.moderate-timeout.json

@@ -0,0 +1,66 @@
+{
+  "metadata": {
+    "message_id": "2ea469a5-4bc8-4f95-ae08-c10b679cf038",
+    "message_type": "notification",
+    "message_timestamp": "2024-05-14T12:31:47.995298776Z",
+    "subscription_type": "channel.moderate",
+    "subscription_version": "2"
+  },
+  "payload": {
+    "subscription": {
+      "id": "5a893cd8-c10e-4198-a620-e9f35fd6ccd6",
+      "status": "enabled",
+      "type": "channel.moderate",
+      "version": "2",
+      "condition": {
+        "broadcaster_user_id": "129546453",
+        "moderator_user_id": "129546453"
+      },
+      "transport": {
+        "method": "websocket",
+        "session_id": "AgoQMmDnfVEhRI6iLiBniEWHkxIGY2VsbC1j"
+      },
+      "created_at": "2024-11-27T20:01:50.171283653Z",
+      "cost": 0
+    },
+    "event": {
+      "broadcaster_user_id": "129546453",
+      "broadcaster_user_login": "nerixyz",
+      "broadcaster_user_name": "nerixyz",
+      "source_broadcaster_user_id": null,
+      "source_broadcaster_user_login": null,
+      "source_broadcaster_user_name": null,
+      "moderator_user_id": "129546453",
+      "moderator_user_login": "nerixyz",
+      "moderator_user_name": "nerixyz",
+      "action": "timeout",
+      "followers": null,
+      "slow": null,
+      "vip": null,
+      "unvip": null,
+      "mod": null,
+      "unmod": null,
+      "ban": null,
+      "unban": null,
+      "timeout": {
+        "user_id": "141981764",
+        "user_login": "twitchdev",
+        "user_name": "TwitchDev",
+        "reason": "test Kappa",
+        "expires_at": "2024-11-27T20:01:55.358149527Z"
+      },
+      "untimeout": null,
+      "raid": null,
+      "unraid": null,
+      "delete": null,
+      "automod_terms": null,
+      "unban_request": null,
+      "warn": null,
+      "shared_chat_ban": null,
+      "shared_chat_unban": null,
+      "shared_chat_timeout": null,
+      "shared_chat_untimeout": null,
+      "shared_chat_delete": null
+    }
+  }
+}

lib/twitch-eventsub-ws/tests/resources/messages/channel.moderate-warn.json

@@ -0,0 +1,65 @@
+{
+  "metadata": {
+    "message_id": "e8edc592-5550-4aa5-bba6-39e31a2be435",
+    "message_type": "notification",
+    "message_timestamp": "2024-05-14T12:31:47.995298776Z",
+    "subscription_type": "channel.moderate",
+    "subscription_version": "2"
+  },
+  "payload": {
+    "subscription": {
+      "id": "7297f7eb-3bf5-461f-8ae6-7cd7781ebce3",
+      "status": "enabled",
+      "type": "channel.moderate",
+      "version": "2",
+      "cost": 0,
+      "condition": {
+        "broadcaster_user_id": "423374343",
+        "moderator_user_id": "424596340"
+      },
+      "transport": {
+        "method": "websocket",
+        "session_id": "AgoQUlB8aB2SSsavWVfcs5ljnBIGY2VsbC1j"
+      },
+      "created_at": "2024-02-23T21:12:33.771005262Z"
+    },
+    "event": {
+      "broadcaster_user_id": "423374343",
+      "broadcaster_user_login": "glowillig",
+      "broadcaster_user_name": "glowillig",
+      "source_broadcaster_user_id": "41292030",
+      "source_broadcaster_user_login": "adflynn404",
+      "source_broadcaster_user_name": "adflynn404",
+      "moderator_user_id": "424596340",
+      "moderator_user_login": "quotrok",
+      "moderator_user_name": "quotrok",
+      "action": "warn",
+      "followers": null,
+      "slow": null,
+      "vip": null,
+      "unvip": null,
+      "warn": {
+        "user_id": "141981764",
+        "user_login": "twitchdev",
+        "user_name": "TwitchDev",
+        "reason": "cut it out",
+        "chat_rules_cited": null
+      },
+      "unmod": null,
+      "ban": null,
+      "unban": null,
+      "timeout": null,
+      "untimeout": null,
+      "raid": null,
+      "unraid": null,
+      "delete": null,
+      "automod_terms": null,
+      "unban_request": null,
+      "shared_chat_ban": null,
+      "shared_chat_unban": null,
+      "shared_chat_timeout": null,
+      "shared_chat_untimeout": null,
+      "shared_chat_delete": null
+    }
+  }
+}

lib/twitch-eventsub-ws/tests/resources/messages/channel.moderate.json

@@ -0,0 +1,60 @@
+{
+  "metadata": {
+    "message_id": "bf6e248f-a523-4bf8-b215-ea1822e60223",
+    "message_type": "notification",
+    "message_timestamp": "2024-05-14T12:31:47.995298776Z",
+    "subscription_type": "channel.moderate",
+    "subscription_version": "2"
+  },
+  "payload": {
+    "subscription": {
+      "id": "86d99e53-2837-40cf-bc6e-c6e00698919c",
+      "status": "enabled",
+      "type": "channel.moderate",
+      "version": "2",
+      "condition": {
+        "broadcaster_user_id": "11148817",
+        "moderator_user_id": "117166826"
+      },
+      "transport": {
+        "method": "websocket",
+        "session_id": "AgoQZgfnyKxXQ32hpzCWF4aCGBIGY2VsbC1j"
+      },
+      "created_at": "2025-02-01T12:02:16.005321321Z",
+      "cost": 0
+    },
+    "event": {
+      "broadcaster_user_id": "11148817",
+      "broadcaster_user_login": "pajlada",
+      "broadcaster_user_name": "pajlada",
+      "source_broadcaster_user_id": null,
+      "source_broadcaster_user_login": null,
+      "source_broadcaster_user_name": null,
+      "moderator_user_id": "11148817",
+      "moderator_user_login": "pajlada",
+      "moderator_user_name": "pajlada",
+      "action": "followers",
+      "followers": { "follow_duration_minutes": 0 },
+      "slow": null,
+      "vip": null,
+      "unvip": null,
+      "mod": null,
+      "unmod": null,
+      "ban": null,
+      "unban": null,
+      "timeout": null,
+      "untimeout": null,
+      "raid": null,
+      "unraid": null,
+      "delete": null,
+      "automod_terms": null,
+      "unban_request": null,
+      "warn": null,
+      "shared_chat_ban": null,
+      "shared_chat_unban": null,
+      "shared_chat_timeout": null,
+      "shared_chat_untimeout": null,
+      "shared_chat_delete": null
+    }
+  }
+}

lib/twitch-eventsub-ws/tests/resources/messages/channel.update.json

@@ -0,0 +1,34 @@
+{
+  "metadata": {
+    "message_id": "beb72a37-0c04-4d7e-9934-f611ddc0e869",
+    "message_type": "notification",
+    "message_timestamp": "2024-05-14T12:31:47.995298776Z",
+    "subscription_type": "channel.update",
+    "subscription_version": "1"
+  },
+  "payload": {
+    "subscription": {
+      "id": "f1c2a387-161a-49f9-a165-0f21d7a4e1c4",
+      "type": "channel.update",
+      "version": "1",
+      "status": "enabled",
+      "cost": 0,
+      "condition": { "broadcaster_user_id": "1337" },
+      "transport": {
+        "method": "websocket",
+        "session_id": "AgoQUlB8aB2SSsavWVfcs5ljnBIGY2VsbC1j"
+      },
+      "created_at": "2019-11-16T10:11:12.123Z"
+    },
+    "event": {
+      "broadcaster_user_id": "1337",
+      "broadcaster_user_login": "cool_user",
+      "broadcaster_user_name": "Cool_User",
+      "title": "Best Stream Ever",
+      "language": "en",
+      "category_id": "21779",
+      "category_name": "Fortnite",
+      "is_mature": false
+    }
+  }
+}

lib/twitch-eventsub-ws/tests/resources/messages/session-welcome.json

@@ -0,0 +1,16 @@
+{
+  "metadata": {
+    "message_id": "faf21c17-82d3-4479-8daa-295f16b706f0",
+    "message_type": "session_welcome",
+    "message_timestamp": "2023-07-19T14:56:51.634234626Z"
+  },
+  "payload": {
+    "session": {
+      "id": "AQoQILE98gtqShGmLD7AM6yJThAB",
+      "status": "connected",
+      "connected_at": "2023-07-19T14:56:51.616329898Z",
+      "keepalive_timeout_seconds": 10,
+      "reconnect_url": null
+    }
+  }
+}

lib/twitch-eventsub-ws/tests/resources/messages/stream.offline.json

@@ -0,0 +1,29 @@
+{
+  "metadata": {
+    "message_id": "ee312d92-d9bb-4d4f-9e94-3a5e051940f3",
+    "message_type": "notification",
+    "message_timestamp": "2024-05-14T12:31:47.995298776Z",
+    "subscription_type": "stream.offline",
+    "subscription_version": "1"
+  },
+  "payload": {
+    "subscription": {
+      "id": "f1c2a387-161a-49f9-a165-0f21d7a4e1c4",
+      "type": "stream.offline",
+      "version": "1",
+      "status": "enabled",
+      "cost": 0,
+      "condition": { "broadcaster_user_id": "1337" },
+      "created_at": "2019-11-16T10:11:12.123Z",
+      "transport": {
+        "method": "websocket",
+        "session_id": "AgoQUlB8aB2SSsavWVfcs5ljnBIGY2VsbC1j"
+      }
+    },
+    "event": {
+      "broadcaster_user_id": "1337",
+      "broadcaster_user_login": "cool_user",
+      "broadcaster_user_name": "Cool_User"
+    }
+  }
+}

lib/twitch-eventsub-ws/tests/resources/messages/stream.online.json

@@ -0,0 +1,32 @@
+{
+  "metadata": {
+    "message_id": "ecaf20f2-6b08-4a17-ba14-581130d93c95",
+    "message_type": "notification",
+    "message_timestamp": "2024-05-14T12:31:47.995298776Z",
+    "subscription_type": "stream.online",
+    "subscription_version": "1"
+  },
+  "payload": {
+    "subscription": {
+      "id": "f1c2a387-161a-49f9-a165-0f21d7a4e1c4",
+      "type": "stream.online",
+      "version": "1",
+      "status": "enabled",
+      "cost": 0,
+      "condition": { "broadcaster_user_id": "1337" },
+      "transport": {
+        "method": "websocket",
+        "session_id": "AgoQUlB8aB2SSsavWVfcs5ljnBIGY2VsbC1j"
+      },
+      "created_at": "2019-11-16T10:11:12.123Z"
+    },
+    "event": {
+      "id": "9001",
+      "broadcaster_user_id": "1337",
+      "broadcaster_user_login": "cool_user",
+      "broadcaster_user_name": "Cool_User",
+      "type": "live",
+      "started_at": "2020-10-11T10:11:12.123Z"
+    }
+  }
+}

lib/twitch-eventsub-ws/tests/src/parse.cpp

@@ -0,0 +1,124 @@
+#include "twitch-eventsub-ws/listener.hpp"
+#include "twitch-eventsub-ws/session.hpp"
+
+#include <boost/beast/core/flat_buffer.hpp>
+#include <gtest/gtest.h>
+
+#include <filesystem>
+#include <fstream>
+#include <sstream>
+
+namespace {
+
+using namespace chatterino::eventsub::lib;
+
+std::filesystem::path baseDir()
+{
+    std::filesystem::path snapshotDir(__FILE__);
+    return snapshotDir.parent_path().parent_path() / "resources" / "messages";
+}
+
+std::filesystem::path filePath(std::string_view name)
+{
+    return baseDir() / name;
+}
+
+std::vector<std::string> discover()
+{
+    std::vector<std::string> files;
+    for (const auto &entry : std::filesystem::directory_iterator{baseDir()})
+    {
+        if (entry.is_regular_file())
+        {
+            auto name = entry.path().filename().string();
+            if (name.ends_with(".json"))
+            {
+                files.emplace_back(name.substr(0, name.length() - 5));
+            }
+        }
+    }
+    return files;
+}
+
+boost::beast::flat_buffer readToFlatBuffer(const std::filesystem::path &path)
+{
+    std::ifstream istream(path);
+    std::ostringstream buffer;
+    buffer << istream.rdbuf();
+
+    boost::beast::flat_buffer buf;
+    auto inner = buf.prepare(buffer.view().size());
+    std::memcpy(inner.data(), buffer.view().data(), inner.size());
+    buf.commit(inner.size());
+    return buf;
+}
+
+class NoOpListener : public chatterino::eventsub::lib::Listener
+{
+    void onSessionWelcome(messages::Metadata metadata,
+                          payload::session_welcome::Payload payload) override
+    {
+    }
+
+    void onNotification(messages::Metadata metadata,
+                        const boost::json::value &jv) override
+    {
+    }
+
+    void onChannelBan(messages::Metadata metadata,
+                      payload::channel_ban::v1::Payload payload) override
+    {
+    }
+
+    void onStreamOnline(messages::Metadata metadata,
+                        payload::stream_online::v1::Payload payload) override
+    {
+    }
+
+    void onStreamOffline(messages::Metadata metadata,
+                         payload::stream_offline::v1::Payload payload) override
+    {
+    }
+
+    void onChannelChatNotification(
+        messages::Metadata metadata,
+        payload::channel_chat_notification::v1::Payload payload) override
+    {
+    }
+
+    void onChannelUpdate(messages::Metadata metadata,
+                         payload::channel_update::v1::Payload payload) override
+    {
+    }
+
+    void onChannelChatMessage(
+        messages::Metadata metadata,
+        payload::channel_chat_message::v1::Payload payload) override
+    {
+    }
+
+    void onChannelModerate(
+        messages::Metadata metadata,
+        payload::channel_moderate::v2::Payload payload) override
+    {
+    }
+};
+
+}  // namespace
+
+class TestHandleMessageP : public ::testing::TestWithParam<std::string>
+{
+};
+
+TEST_P(TestHandleMessageP, Run)
+{
+    auto buf = readToFlatBuffer(filePath(GetParam() + ".json"));
+
+    std::unique_ptr<Listener> listener = std::make_unique<NoOpListener>();
+    auto ec = handleMessage(listener, buf);
+    ASSERT_FALSE(ec.failed())
+        << ec.what() << ec.message() << ec.location().to_string();
+}
+
+INSTANTIATE_TEST_SUITE_P(HandleMessage, TestHandleMessageP,
+                         testing::ValuesIn(discover()));