Replit
api
External API Calls Timing Out on Replit
Your app hangs when calling external APIs. Requests to third-party services timeout without response.
Network latency and Replit's resource constraints cause slow API calls.
Error Messages You Might See
SocketTimeoutException: Read timed out
java.net.ConnectException: Connection refused
Connection timeout after 30000ms
Common Causes
- Default HTTP timeout too short (often 0 = infinite)
- External API very slow or unreachable
- Network/DNS resolution slow from Replit
- API missing required authentication headers
- Rate limiting causing delays
How to Fix It
Set explicit connection and read timeouts (5-10 seconds). Use RestTemplate with HttpClientBuilder or WebClient. Implement circuit breaker pattern with Resilience4j to fail fast. Test API connectivity in Replit shell with curl. Consider caching API responses to reduce calls.
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Get HelpFrequently Asked Questions
What timeout should I use?
5-10 seconds for external APIs. Set both connection and read timeouts
How do I configure RestTemplate timeouts?
Use HttpClient with setConnectTimeout() and setSocketTimeout()