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API Contracts

context-api-contracts

Frontend-backend API contracts, routes, clients, and type definitions. Handles API endpoint definitions, request/response types, route configuration, and cross-stack integration. Use when working with API endpoints, request/response types, route definitions, or frontend-backend integration, or wh...

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SKILL.md

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API Contracts

Navigate frontend-backend API integration, routes, clients, and data flow.

Overview

API contracts define frontend ↔ backend communication. Critical for cross-stack changes.

Backend API Routes

  • backend/​api/​*.py - API v1 endpoints
  • backend/​api/​v2/​*.py - API v2 endpoints
  • backend/​api/​analytics_api.py
  • backend/​api/​brokerage_connections.py
  • backend/​api/​accounts.py
  • backend/​api/​securities.py

Frontend API Clients

  • frontend/​src/​services/​analyticsApi.ts
  • frontend/​src/​services/​researchApi.ts
  • frontend/​src/​lib/​apiClient.ts - Base API client

TypeScript Contracts

  • supabase/​types/​database.types.ts - Database types
  • frontend/​src/​types/​**/​*.ts - Frontend types

Backend Middleware

  • backend/​middleware/​*.py - Auth, CORS, etc.

Tests

  • backend/​tests/​integration/ - API integration tests
  • frontend/​e2e/ - E2E API tests

Documentation

  • Internal: docs/​backend/​API_CONTRACTS.md (create if needed)

Related Areas

  • See context-clerk-integration for auth middleware
  • See context-testing-infrastructure for API test patterns