Move message, reaction, reply, translate and action endpoints to v2

[gpunto]

Goal

Move the message endpoints to v2: send, get, update, partial update, delete, actions, reactions, reaction queries, replies and translations. The websocket stays on v1.

Part of AND-1637

Implementation

• MessageApi is built on /api/v2/chat/.... v2 nests custom data under custom, so a sent or updated message and a reaction keep their custom data.
• A message sent back carries the declared fields responses copy into extraData (mml, poll_id, mentioned_group_ids, restricted_visibility). They go back to their typed fields. The response-only ones (draft, image_labels) are dropped, since the backend would store them as custom data.

Testing

• V2LaneBatchFiveTest parses the v2 message, reply, reaction and translation responses and checks the request bodies.
• DtoMappingTest covers the declared fields sent back as typed fields.

Summary by CodeRabbit

• New Features
  • Message operations now use the v2 API routes, including sending, retrieving, updating, and deleting messages, as well as reactions, actions, translations, and replies.
  • Message requests now map poll IDs, message markup, mentioned group IDs, and restricted visibility to their designated fields. Unrelated custom data continues to be preserved.

[github-actions]

PR checklist ✅

All required conditions are satisfied:

• Title length is OK (or ignored by label).
• At least one pr: label exists.
• Sections ### Goal, ### Implementation, and ### Testing are filled, or the PR is bot-authored.
• An issue is linked (Linear ticket or GitHub issue), or the PR is bot-authored.

🎉 Great job! This PR is ready for review.

[github-actions]

SDK Size Comparison 📏

SDK	Before	After	Difference	Status
stream-chat-android-client	6.22 MB	6.22 MB	0.00 MB	🟢
stream-chat-android-ui-components	11.53 MB	11.53 MB	0.00 MB	🟢
stream-chat-android-compose	13.20 MB	13.20 MB	0.00 MB	🟢
stream-chat-android-ai-compose	2.04 MB	2.04 MB	0.00 MB	🟢
stream-chat-android-ai-ondevice	1.67 MB	1.67 MB	0.00 MB	🟢

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

• Configuration used: Repository UI
• Review profile: CHILL
• Plan: Advanced
• Run ID: 988ea282-6155-4f6b-a48d-edcc3b45203e

📥 Commits

Reviewing files that changed from the base of the PR and between 39f60c8 and 308ebb2.

📒 Files selected for processing: 6

• stream-chat-android-client/src/main/java/io/getstream/chat/android/client/api2/endpoint/MessageApi.kt
• stream-chat-android-client/src/main/java/io/getstream/chat/android/client/api2/mapping/DtoMapping.kt
• stream-chat-android-client/src/main/java/io/getstream/chat/android/client/di/ChatModule.kt
• stream-chat-android-client/src/test/java/io/getstream/chat/android/client/api2/mapping/DtoMappingTest.kt
• stream-chat-android-client/src/test/java/io/getstream/chat/android/network/infrastructure/V2LaneBatchFiveTest.kt
• stream-chat-android-ui-uitests/src/androidTest/java/io/getstream/chat/android/uitests/ui/BaseUiTest.kt

Included review availability: This review used your included allowance. Your plan provides up to 4 included reviews per hour; 2 remain after this review.

📝 Walkthrough

Message endpoints now use the /api/v2/chat prefix, and MessageApi is created with the v2 Retrofit builder. Message request mapping removes draft and image_labels from outgoing custom data and maps selected values to typed fields. Tests cover request mapping, v2 response parsing and serialization, and the updated UI test mock path.

Priority: ⬇️ Low

Merge Risk: ⚪ Minimal · up to 308eb

Message endpoints now use the v2 API paths and request shapes. The supplied context shows no concrete merge-blocking risk.

Pre-merge checks: 4 · 1

Failed checks: 1 warning

Check name	Status	Explanation	Resolution
Docstring Coverage		Docstring coverage is 10.00% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 40 functions across 6 files.	Write docstrings for the functions missing them to satisfy the coverage threshold.

Passed checks: 4 passed

Check name	Status	Explanation
Title check		The title clearly and concisely describes the main change: moving message, reaction, reply, translation, and action endpoints to v2.
Description check		The description includes the required Goal, Implementation, and Testing sections. It accurately explains the v2 endpoint migration, custom-data mapping, websocket scope, and test coverage. The Checkli…
Linked Issues check		Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check		Check skipped because no linked issues were found for this pull request.

Full details: Description check

Explanation

The description includes the required Goal, Implementation, and Testing sections. It accurately explains the v2 endpoint migration, custom-data mapping, websocket scope, and test coverage. The Checklist section is omitted, so issue linkage, test or documentation updates, and CLA status are not explicitly recorded.

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_{A rabbit hops along the route,
Where v2 paths now lead throughout.
It sorts the fields in custom data,
And checks the bodies, hop by hop.
The fixtures parse; the tests all run,
Then rabbit rests beneath the moon.}

_{Comment @coderabbitai help to get the list of available commands.}

[andremion]

Looks good. Two notes inline, both optional.

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
100.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[stream-public-bot]

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