#API Documentation

#API Overview

Name: [API name]
Version: [Version]
Base URL: [URL]
Status: [Active/Deprecated/Beta]
Last Updated: [Date]

#Authentication

• Authentication method (OAuth2, API key, JWT, etc.)
• How to obtain credentials
• Token expiration and refresh
• Example authentication headers

#Rate Limiting

• Rate limit thresholds (requests per minute/hour)
• How limits are enforced
• Rate limit headers returned
• Handling 429 responses
• Quota considerations

#Error Handling

• Standard error response format
• HTTP status codes used
• Common error codes and meanings
• Retry logic recommendations
• Troubleshooting guide

{
  "error": {
    "code": "ERROR_CODE",
    "message": "Human-readable message",
    "details": {}
  }
}

#Versioning Strategy

• How versions are managed (URL path, header, query param)
• Deprecation policy and timeline
• Breaking change notifications
• Backward compatibility guarantees

#Endpoints

#Endpoint: [METHOD] /resource/{id}

Description: [What this endpoint does]
Authentication: [Required/Optional/None]
Rate Limit: [Tier if applicable]

Request

Method: [GET/POST/PUT/DELETE/PATCH]
Path: /v1/resource/{id}
Query Parameters:
  - param1 (string, required): Description
  - param2 (integer, optional): Description

Headers:
  - Authorization: Bearer {token}
  - Content-Type: application/json

Body:
{
  "field1": "value",
  "field2": 123
}

Response

Success (200):
{
  "id": "resource-123",
  "field1": "value",
  "field2": 123,
  "createdAt": "2025-01-15T10:30:00Z"
}

Error (400):
{
  "error": {
    "code": "INVALID_REQUEST",
    "message": "Missing required field: field1"
  }
}

Status Codes:

• 200: Success
• 400: Bad request
• 401: Unauthorized
• 403: Forbidden
• 404: Not found
• 429: Rate limit exceeded
• 500: Server error

Examples:

curl -X GET https://api.example.com/v1/resource/123 \
  -H "Authorization: Bearer eyJhbGciOiJIUzI1NiIs..." \
  -H "Content-Type: application/json"

#Webhooks (if applicable)

• Supported events
• Payload format
• Retry logic
• Signing/verification
• Example webhook payloads

#Pagination

• Pagination style (offset/limit, cursor, keyset)
• Maximum page size
• Default page size
• Example paginated response

#Filtering & Sorting

• Supported filter operators
• Sortable fields
• Query syntax examples

#SDK & Client Libraries

• Available SDKs
• Installation instructions
• Links to repositories

#Changelog

• Version history
• Breaking changes
• New features
• Bug fixes
• Deprecations