implementing Cross-Region AWS Lambda Function Invocation from API Gateway
I've been researching this but I'm sure I'm missing something obvious here, but I'm trying to invoke an AWS Lambda function located in a different region from my API Gateway, but I'm running into issues... The API Gateway is set up in `us-east-1`, and the Lambda function is in `us-west-2`. Despite following the documentation, I'm getting a `502 Bad Gateway` behavior. I have the Lambda function configured with the correct permissions, and the API Gateway's integration type is set to use 'Lambda Function'. Here's the configuration for the integration: ```json { "type": "AWS_PROXY", "httpMethod": "POST", "uri": "arn:aws:apigateway:us-west-2:lambda:path/2015-03-31/functions/arn:aws:lambda:us-west-2:123456789012:function:myLambdaFunction/invocations" } ``` I also ensured that cross-region invocation is enabled on the Lambda function by adding this policy: ```json { "Version": "2012-10-17", "Statement": [ { "Effect": "Allow", "Principal": { "Service": "apigateway.amazonaws.com" }, "Action": "lambda:InvokeFunction", "Resource": "arn:aws:lambda:us-west-2:123456789012:function:myLambdaFunction" } ] } ``` When I check the CloudWatch logs for the Lambda function, I see the invocation attempt, but it just shows that the function was invoked and nothing more. I’ve also tried using a direct test invocation from the Lambda console, and that works fine. What could be causing this `502 Bad Gateway` behavior when invoking the Lambda from the API Gateway? Is there something I'm missing in the setup that relates to cross-region functionality? For context: I'm using Javascript on macOS. Thanks in advance!