What strategies can I use to limit the impact of HTTP 429 errors on dependent services in a microservice architecture

Question

Can you name strategies I can use to limit the impact of HTTP 429 errors on dependent services in a microservice architecture?

Answer 1

In order to limit the impact of HTTP 429 errors on dependent services in a microservice architecture, here are the strategies you can refer to:

1. Circuit Breaker Pattern

• Temporarily stop calling the dependent service when repeated 429 errors occur to avoid overloading.

           

2. Retry with Backoff

• Implement retries with exponential backoff for resilience.

           

3. Rate-Limiting at the Caller Side

• Limit outgoing requests to avoid hitting rate limits.

4. Graceful Fallbacks

• Return cached or default responses when 429 errors occur.

           

5. Asynchronous Queues

• Use queues to delay requests and retry failed ones.

           

Hence, the above strategies can be used to limit the impact of HTTP 429 errors on dependent services in a microservice architecture.​