API Integration Best Practices
Build robust API integrations. Implement parallel processing, retry logic, and error handling.
TL;DR
Build robust API integrations: use retry logic with exponential backoff, implement parallel processing for batch operations, handle rate limits gracefully, and log all API interactions for debugging.
Key Takeaways:
- •Implement retry logic with exponential backoff
- •Use parallel processing for batch operations
- •Handle rate limits with queue management
- •Log all API calls for debugging and monitoring
Building robust API integrations means handling limits and errors gracefully. This guide covers best practices for parallel processing, retry logic, and error handling - so your mockup pipeline never breaks.
Understanding Parallel Limits
SudoMock uses parallel limits to ensure fair usage and consistent performance. These limits determine how many simultaneous requests you can have in-flight at once:
Response Headers
Every API response includes parallel limit headers:
x-concurrent-limit- Your parallel limitx-concurrent-remaining- Available slotsRetry-After- Seconds to wait (only on 429 responses)
Handling 429 Errors
When you exceed parallel limits, the API returns 429 Parallel Limit Reached.
Here's how to handle it properly:
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Exponential Backoff
For retry logic, exponential backoff prevents overwhelming the API. The delay doubles with each retry attempt:
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Why Jitter?
When multiple clients hit limits simultaneously, they all retry at the same time - causing another limit breach. Adding random jitter spreads out retries.
Parallel Processing Strategy
For high-volume workloads, process requests in parallel up to your plan's limit:
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Error Types & Handling
Don't Retry Everything
Only retry 429 and 5xx errors. Client errors like 400
and 401 won't succeed on retry - fix the underlying issue instead.
Monitoring & Metrics
Track these metrics to optimize your API usage:
Best Practice
Use the x-concurrent-remaining header proactively. If it's getting low,
wait for active requests to complete before sending more.
Related Resources
Frequently Asked Questions
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