Why API Design Matters
A well-designed API makes integrations a pleasure to build. A poorly designed one creates frustration, bugs, and support tickets. If you are building or extending a help desk platform, API design is worth getting right.
Resource Design
Model your API around resources: tickets, conversations, contacts, articles, agents. Use consistent naming conventions (plural nouns for collections, singular for individual resources). Keep URLs intuitive: /api/v1/tickets, /api/v1/tickets/123/messages.
Authentication and Authorization
Use API keys for server-to-server integrations and OAuth 2.0 for user-facing applications. Include scopes to limit what each key can access. Always hash API keys — never store them in plaintext.
Pagination and Filtering
Use cursor-based pagination for real-time data (tickets arrive constantly) and offset-based for static data (knowledge base articles). Support filtering by status, date range, assignee, and custom fields.
Rate Limiting
Implement sliding window rate limits. Return rate limit headers (X-RateLimit-Remaining, X-RateLimit-Reset) so clients can throttle proactively. Use 429 status codes with Retry-After headers.
Versioning
Version your API from day one — /api/v1/ — even if you only have one version. This gives you room to make breaking changes without disrupting existing integrations.
Error Handling
Return consistent error responses with a machine-readable error code, human-readable message, and request ID for debugging. Never expose stack traces or internal details in production errors.
