CODEWITHSUNDEEP
javascriptnode.jsasynchronouslambdaaws-lambda
keith gould
keith gould

Reputation: 413

node async only calls first function when inside node-lambda

Using a vanilla node script like the following node async works just fine:

async = require('async');

async.waterfall([
    function (c) {
        console.log(1);
        c(null);
    },        
    function (c) {
        console.log(2);
        c(null);
    }       
  ]);

The above when run via node test.js prints out:

1
2

... as expected.

However if I place the code inside a node-lambda handler:

var async = require('async');

exports.handler = function( event, context ) {
  console.log( "==================================");

  async.waterfall([
    function (c) {
        console.log(1);
        c(null);
    },        
    function (c) {
        console.log(2);
        c(null);
    }        
  ]);

  console.log( "==================================");
  context.done( );
}

Only the first method is called when I run ./node_modules/.bin/node-lambda run 

==================================
1
==================================

I'm using:

Upvotes: 3

Views: 255

Answers (1)

isvforall
isvforall

Reputation: 8926

You are using asynchronous code. Apparently that code context.done( ); to finish the executing of the main function handler and other async code(second function in waterfall) cannot be executed, it did not have time enough, because the main function has been completed.

Upvotes: 1

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