AWS lambda nodejs: How can i use callback function to return a value which i printed in AWS console?

Question

Providing the code, I'm running in AWS lambda function 

exports.handler = (event, context, callback) => {

            // 

          mqfunc1(func2);

};

var func2 = function(data) {

            console.log('got data: '+data);

};

var mqfunc1 = function(callback) {

        var myCallback = function(data) {

        console.log('got data: '+data);

        };

        var usingItNow = function(callback) {

        callback('get it?');

        };

};

How could I print the same message using callback function within the exports.handler?

Answer 1

You can try this:

callback(response_error, response_success)

Sample:

const response_success = {

      statusCode: 200,

      body: JSON.stringify({

        message: 'ok'

      }),

};

const response_error = {

    statusCode: 400,

    body: JSON.stringify({

        message: 'error'

    }),

};

if (error) {

   callback(response_error)

} else {

   callback(undefined, response_success)

}

For more information visit: aws lambda tutorial

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