Add POST /api/chats endpoint

[sweetmantech]

Summary

• Add POST /api/chats endpoint for creating new chat rooms
• Account ID is inferred from the API key (x-api-key header)
• Optional artistId and chatId parameters
• chatId is auto-generated if not provided

Files Changed

• lib/chats/createChatHandler.ts - Handler function
• app/api/chats/route.ts - API route with OPTIONS and POST handlers

Test plan

• Test creating a chat with valid API key
• Test creating a chat with artistId
• Test creating a chat with custom chatId
• Test error response with invalid/missing API key

🤖 Generated with Claude Code

Summary by CodeRabbit

• New Features

  • Added a new chat creation API endpoint with CORS support and API key-based authentication for secure chat room creation and management.

• Documentation

  • Introduced standardized input validation patterns and documentation for validating API request payloads, including error handling guidelines, missing field detection, and consistent JSON response formatting conventions.

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Project	Deployment	Review	Updated (UTC)
recoup-api	Ready	Preview	Jan 9, 2026 2:57pm

[coderabbitai]

Caution

Review failed

The pull request is closed.

📝 Walkthrough

Walkthrough

This pull request introduces a new chat creation API endpoint with comprehensive validation, authentication, and database integration. It includes documentation for standardized input validation patterns, a new route handler with CORS support, utility functions for safe JSON parsing, and Zod-based schema validation.

Changes

Cohort / File(s)	Summary
Documentation CLAUDE.md	Adds Input Validation section documenting standardized Zod-based validation pattern with schema definitions, typed exports, and usage examples
API Route app/api/chats/route.ts	New route file exporting OPTIONS and POST handlers; OPTIONS returns CORS preflight headers, POST delegates to createChatHandler
Chat Creation Handler lib/chats/createChatHandler.ts	Server handler for chat creation: authenticates via API key, validates request body, generates or uses provided roomId, inserts record into database, returns JSON response with CORS headers; includes error handling with standardized error payloads
Chat Body Validation lib/chats/validateCreateChatBody.ts	Zod schema validator for CreateChatBody; returns NextResponse with 400 status and error details on failure, or validated typed data on success
JSON Parsing Utility lib/networking/safeParseJson.ts	Safe async JSON parser for NextRequest; returns parsed payload on success or empty object on parse failure

Sequence Diagram(s)

sequenceDiagram
actor Client
participant Route as app/api/chats/route.ts
participant Handler as createChatHandler
participant Validator as validateCreateChatBody
participant Auth as Auth Service
participant DB as Database
Client->>Route: POST /api/chats (with body)
Route->>Handler: forwards request
Handler->>Handler: parse request JSON
Handler->>Validator: validate body
Validator-->>Handler: validated data or error response
alt validation fails
Handler-->>Client: 400 response with error details
else validation succeeds
Handler->>Auth: authenticate via API key
Auth-->>Handler: accountId
Handler->>DB: insert new room record
DB-->>Handler: success
Handler-->>Client: 200 response with created chat + CORS headers
end

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Estimated code review effort

🎯 3 (Moderate) | ⏱️ ~25 minutes

Poem

🐰 A chat is born with validation's grace,
Zod schemas keep bad data from this place,
CORS headers flow, authentication's tight,
New endpoints dance in the server's light! ✨

✨ Finishing touches

• 📝 Generate docstrings

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📜 Recent review details

Configuration used: defaults

Review profile: CHILL

Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between 5354e16 and aeee4dd.

📒 Files selected for processing (5)

• CLAUDE.md
• app/api/chats/route.ts
• lib/chats/createChatHandler.ts
• lib/chats/validateCreateChatBody.ts
• lib/networking/safeParseJson.ts

---

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[sweetmantech]

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