Why i am getting this {"message": "Internal server error" } from Postman

Question

I am new to AWS, I am getting {"message": "Internal server error"} while running the Lambda function with API Gateway in Postman.

I have checked the CloudWatchLogs, there is no error showing in the logs. But Postman returning {"message": "Internal server error"} this error.

Answer 1

It happens when you don't return the correct API Gateway format.

Try to return this in your Lambda:

def lambda_handler(event, context):
    return {
        "statusCode": 200,
        "body": "{'Test': 'Test'}",
        "headers": {
            'Content-Type': 'text/html',
        }
    }