AWS Lambda Function is returning Handler 'handler' missing on module 'index'

Question

Consider following code -

function index(event, context, callback) {   //some code } exports.handler = index();  {   "errorMessage": "Handler 'handler' missing on module 'index'" } 

This is my function which is having business logic. My javascript file name is index.js.

Whenever I test this code on aws lambda, It gives following log(failed).

This is a screenshot of the Amazon Lambda Upload Site:

Answer 1

In export.handler, you are not referencing the index function, but the result of its execution. I guess you want to export the function itself.

let index = function index(event, context, callback) {   //some code } exports.handler = index; 

Or maybe directly

exports.handler = function index(event, context, callback) {   //some code }