How to handle the AWS lambda function error in nodejs

Question

I am using node js to get the HTTPS response from the server . The response contains more than 6291556 bytes When I execute this function I got the below exception. Is there any best way to handle the error

{
  "errorMessage": "Response payload size exceeded the maximum allowed payload size (6291556 bytes).",
  "errorType": "Function.ResponseSizeTooLarge"
}

Sample code

var res = await beResult(event.id);
    
      const response = {
          statusCode: 200,
          body: res,
      };
      return response;
    };
    
    async function beResult(id) {
      const url = "https://api.com/request/";    
      const params = {
          method: "GET",
          mode: "cors",
          headers: {
          "Access-Control-Allow-Methods": "GET, POST, OPTIONS",
          "Content-Type": "application/json",
          }
      };
      const urlId= url + id;
      return await fetch(urlId, params).then(res => res.json())
      .then(json => { return json;});
    }

score 1 · Accepted Answer · answered Jul 13 '22 at 11:58

1

AWS Lambda functions have restrictions on the request and response size.

You can read about them on the Lambda quotas page of the developer guide.

Invocation payload (request and response)

6 MB (synchronous)
256 KB (asynchronous)

answered Jul 13 '22 at 11:58

Mark Sailes

727
4
16

is it possible to increase the limit? – krishnakumar Balasubramaniam Jul 13 '22 at 12:35
No, is the response a document? Or an image? Can it be uploaded to S3 and then a reference be returned as a response instead of the whole payload. – Mark Sailes Jul 13 '22 at 18:58
The response is a JSON – krishnakumar Balasubramaniam Jul 14 '22 at 11:33
1

If your JSON document is made up of a list of things, can you implement paging to reduce the size? – Mark Sailes Jul 14 '22 at 15:34

How to handle the AWS lambda function error in nodejs

1 Answers1