AWS API Gateway Support
AWS API Gateway support, troubleshooting and optimization.
API Gateway is the front door for many serverless backends. Integration timeouts, CORS and authorizer misconfiguration are the most common sources of trouble.
Common API Gateway problems we fix
The Amazon API Gateway issues our engineers see most often, and how we resolve them.
API Gateway 502 Bad Gateway
Usually a Lambda proxy integration returned a response in the wrong format, or the backend crashed. We validate the response shape (statusCode, headers, body) and check function logs.
API Gateway 504 Endpoint request timed out
REST APIs have a 29 second integration timeout by default. Long-running work should move to asynchronous patterns with queues or Step Functions. We refactor the flow and tune the backend.
API Gateway CORS errors
Browsers need the right preflight OPTIONS response and headers on both success and error responses. We configure CORS on the API, gateway responses and the Lambda output consistently.
API Gateway 403 Forbidden or Missing Authentication Token
Often a wrong path or stage, a missing API key or usage plan, an authorizer rejecting the token, or a resource policy. We trace which control denied the request.
API Gateway throttling and cost
Default account throttles and per-method limits cause 429 errors. We set usage plans, caching and consider HTTP APIs, which cost less than REST APIs for many workloads.
How We Help With API Gateway
Senior AWS engineers who explain what they change and why.
What we do
- REST, HTTP and WebSocket API design
- Authorizers with Cognito, JWT or Lambda
- Custom domains, caching and WAF
- Migration from REST to HTTP APIs
How it works
- Tell us what is wrong or what you want to improve
- We review with read-only access first
- We fix, explain and document the change
- We hand off with monitoring so it stays fixed
Specialized API Gateway support
Deep-dive help for specific API Gateway tasks.
Fix API Gateway 504 Endpoint Request Timed OutFix AWS API Gateway 504 Gateway Timeout. TwinTix finds slow integrations and redesigns long-running requests with asynchronous patterns.
Fixing CORS errors with AWS API GatewayFix 'blocked by CORS policy' with AWS API Gateway. TwinTix configures preflight, headers, Lambda responses and gateway errors for REST and HTTP APIs.
Fixing API Gateway 502 Bad Gateway with Lambda proxyFix 502 Bad Gateway and 'Malformed Lambda proxy response' from AWS API Gateway. TwinTix reads execution logs, corrects response format and Lambda errors.
API Gateway REST API vs HTTP API: choosing and migratingChoose between AWS API Gateway REST API and HTTP API, and migrate safely. TwinTix maps features, authorizers and cost, then moves routes with no outage.
API Gateway throttling, usage plans and API keysFix 429 Too Many Requests and design API Gateway throttling, usage plans and API keys. TwinTix sets limits that protect backends without blocking real users.
Frequently Asked Questions
What is the API Gateway timeout?
REST and HTTP APIs have an integration timeout of about 29 seconds by default for most integrations. Longer jobs should be asynchronous.
REST API or HTTP API?
HTTP APIs are cheaper and faster with fewer features. REST APIs offer usage plans, request validation and more controls. We choose based on what you need.
Can you secure our API?
Yes. We add authentication, throttling, WAF rules, request validation and logging.
Need Help With Amazon API Gateway?
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