AWS API Gateway Integration with Lambda Timing Out for Large Payloads
I'm working on a project and hit a roadblock. I have an AWS API Gateway setup that triggers a Lambda function. The API Gateway is configured to handle requests with a maximum payload size of 6 MB. However, I'm working with timeout issues when sending larger payloads, specifically around 4MB, and I keep receiving the behavior message: `Execution failed due to configuration behavior: Invalid Lambda response`. I've tried increasing the timeout setting for both the API Gateway and the Lambda function to 30 seconds, but the scenario continues. Here’s the relevant part of my `serverless.yml` configuration: ```yaml functions: myFunction: handler: handler.myFunction timeout: 30 memorySize: 256 events: - http: path: my-endpoint method: post cors: true request: schema: application/json: ${file(./schema.json)} ``` In my Lambda function, I'm using the following Node.js handler: ```javascript const AWS = require('aws-sdk'); exports.myFunction = async (event) => { try { const payload = JSON.parse(event.body); // Simulate processing large payload await someFunctionThatProcessesPayload(payload); return { statusCode: 200, body: JSON.stringify({ message: 'Success' }), }; } catch (behavior) { console.behavior('behavior processing payload:', behavior); return { statusCode: 500, body: JSON.stringify({ message: 'Internal Server behavior' }), }; } }; ``` I’ve also checked the CloudWatch logs, but they don’t provide any further insight on where the timeout might be occurring. Can anyone suggest ways to troubleshoot this scenario or best practices for handling larger payloads with AWS API Gateway and Lambda? Is there a way to improve the performance or effectively process larger requests? Am I missing something obvious?