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Question 82 of 110

How do you design APIs for third-party integrations?

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Design Considerations:

  1. Developer Experience:

    • Clear documentation
    • Interactive API explorer
    • SDKs in popular languages
    • Sandbox environment
  2. Partnership Models:

    • Public APIs: Open to all developers
    • Partner APIs: Restricted access
    • Private APIs: Internal use only
  3. Onboarding Process:

    • Self-service registration
    • API key management
    • Usage tiers and billing
    • Support channels

Example Partner API Structure:

POST /partners/webhooks
Authorization: Bearer partner_token
{
  "url": "https://partner.com/webhook",
  "events": ["order.created", "order.updated"],
  "secret": "webhook_secret"
}

Integration Patterns:

  • Webhook notifications
  • Polling endpoints
  • Real-time APIs (WebSockets)
  • Batch processing APIs
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