AWS Lambda struggling to get ListFunctions working












0















I'm struggling to get any sort of response from ListFunctions that isn't null. I have 3 functions in a single region and have played around with the params and AWS.config.region a fair bit. I'm consistently getting null as a return and in my console logs, I don't get anything back. Any help would be greatly appreciated!



let AWS = require('aws-sdk');
//AWS.config.region = 'ca-central-1';
let lambda = new AWS.Lambda({ "apiVersion": "2015-03-31" });

module.exports.handler = async (event, context) => {
let params = {
//MasterRegion: 'ALL',
//FunctionVersion: 'ALL',
MaxItems: 10
};

lambda.listFunctions(params, function(err,data) {
if(err){
console.log(err);
}
else {
console.log(data);
}
context.done(null, "function finished");
}
}


serverless.yml changes



provider:
name: aws
runtime: nodejs8.10
profile: [PROFILE_NAME]
region: [ca-central-1]
iamRoleStatements:
- Effect: "Allow"
Action:
- "lambda:*"
Resource:
- "*"









share|improve this question























  • Try making your function not async. When it's marked as async and the function returns it returns that values. You don't have an explicit return but nodejs returns undefined if a function ends without an explicit return value.

    – cementblocks
    Nov 21 '18 at 20:42











  • And there it is..... thank you kind sir.

    – user3026715
    Nov 21 '18 at 20:49
















0















I'm struggling to get any sort of response from ListFunctions that isn't null. I have 3 functions in a single region and have played around with the params and AWS.config.region a fair bit. I'm consistently getting null as a return and in my console logs, I don't get anything back. Any help would be greatly appreciated!



let AWS = require('aws-sdk');
//AWS.config.region = 'ca-central-1';
let lambda = new AWS.Lambda({ "apiVersion": "2015-03-31" });

module.exports.handler = async (event, context) => {
let params = {
//MasterRegion: 'ALL',
//FunctionVersion: 'ALL',
MaxItems: 10
};

lambda.listFunctions(params, function(err,data) {
if(err){
console.log(err);
}
else {
console.log(data);
}
context.done(null, "function finished");
}
}


serverless.yml changes



provider:
name: aws
runtime: nodejs8.10
profile: [PROFILE_NAME]
region: [ca-central-1]
iamRoleStatements:
- Effect: "Allow"
Action:
- "lambda:*"
Resource:
- "*"









share|improve this question























  • Try making your function not async. When it's marked as async and the function returns it returns that values. You don't have an explicit return but nodejs returns undefined if a function ends without an explicit return value.

    – cementblocks
    Nov 21 '18 at 20:42











  • And there it is..... thank you kind sir.

    – user3026715
    Nov 21 '18 at 20:49














0












0








0








I'm struggling to get any sort of response from ListFunctions that isn't null. I have 3 functions in a single region and have played around with the params and AWS.config.region a fair bit. I'm consistently getting null as a return and in my console logs, I don't get anything back. Any help would be greatly appreciated!



let AWS = require('aws-sdk');
//AWS.config.region = 'ca-central-1';
let lambda = new AWS.Lambda({ "apiVersion": "2015-03-31" });

module.exports.handler = async (event, context) => {
let params = {
//MasterRegion: 'ALL',
//FunctionVersion: 'ALL',
MaxItems: 10
};

lambda.listFunctions(params, function(err,data) {
if(err){
console.log(err);
}
else {
console.log(data);
}
context.done(null, "function finished");
}
}


serverless.yml changes



provider:
name: aws
runtime: nodejs8.10
profile: [PROFILE_NAME]
region: [ca-central-1]
iamRoleStatements:
- Effect: "Allow"
Action:
- "lambda:*"
Resource:
- "*"









share|improve this question














I'm struggling to get any sort of response from ListFunctions that isn't null. I have 3 functions in a single region and have played around with the params and AWS.config.region a fair bit. I'm consistently getting null as a return and in my console logs, I don't get anything back. Any help would be greatly appreciated!



let AWS = require('aws-sdk');
//AWS.config.region = 'ca-central-1';
let lambda = new AWS.Lambda({ "apiVersion": "2015-03-31" });

module.exports.handler = async (event, context) => {
let params = {
//MasterRegion: 'ALL',
//FunctionVersion: 'ALL',
MaxItems: 10
};

lambda.listFunctions(params, function(err,data) {
if(err){
console.log(err);
}
else {
console.log(data);
}
context.done(null, "function finished");
}
}


serverless.yml changes



provider:
name: aws
runtime: nodejs8.10
profile: [PROFILE_NAME]
region: [ca-central-1]
iamRoleStatements:
- Effect: "Allow"
Action:
- "lambda:*"
Resource:
- "*"






node.js amazon-web-services lambda aws-lambda amazon-iam






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share|improve this question











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share|improve this question










asked Nov 21 '18 at 20:03









user3026715user3026715

197




197













  • Try making your function not async. When it's marked as async and the function returns it returns that values. You don't have an explicit return but nodejs returns undefined if a function ends without an explicit return value.

    – cementblocks
    Nov 21 '18 at 20:42











  • And there it is..... thank you kind sir.

    – user3026715
    Nov 21 '18 at 20:49



















  • Try making your function not async. When it's marked as async and the function returns it returns that values. You don't have an explicit return but nodejs returns undefined if a function ends without an explicit return value.

    – cementblocks
    Nov 21 '18 at 20:42











  • And there it is..... thank you kind sir.

    – user3026715
    Nov 21 '18 at 20:49

















Try making your function not async. When it's marked as async and the function returns it returns that values. You don't have an explicit return but nodejs returns undefined if a function ends without an explicit return value.

– cementblocks
Nov 21 '18 at 20:42





Try making your function not async. When it's marked as async and the function returns it returns that values. You don't have an explicit return but nodejs returns undefined if a function ends without an explicit return value.

– cementblocks
Nov 21 '18 at 20:42













And there it is..... thank you kind sir.

– user3026715
Nov 21 '18 at 20:49





And there it is..... thank you kind sir.

– user3026715
Nov 21 '18 at 20:49












1 Answer
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oldest

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1














Make your function not be async.
When it's marked as async and the handler function returns, lambda returns that value. You don't have an explicit return but nodejs returns undefined if a function ends without an explicit return value.



You can also switch from using callbacks



module.exports.handler = async (event, context) => {
let params = {
//MasterRegion: 'ALL',
//FunctionVersion: 'ALL',
MaxItems: 10
};

try {
let result = await lambda.listFunctions(params).promise() {
console.log(result);
} catch (err) {
console.log(err);
throw err; // this try catch isn't really necessary
}
return "function finished";
}





share|improve this answer























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    oldest

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    1














    Make your function not be async.
    When it's marked as async and the handler function returns, lambda returns that value. You don't have an explicit return but nodejs returns undefined if a function ends without an explicit return value.



    You can also switch from using callbacks



    module.exports.handler = async (event, context) => {
    let params = {
    //MasterRegion: 'ALL',
    //FunctionVersion: 'ALL',
    MaxItems: 10
    };

    try {
    let result = await lambda.listFunctions(params).promise() {
    console.log(result);
    } catch (err) {
    console.log(err);
    throw err; // this try catch isn't really necessary
    }
    return "function finished";
    }





    share|improve this answer




























      1














      Make your function not be async.
      When it's marked as async and the handler function returns, lambda returns that value. You don't have an explicit return but nodejs returns undefined if a function ends without an explicit return value.



      You can also switch from using callbacks



      module.exports.handler = async (event, context) => {
      let params = {
      //MasterRegion: 'ALL',
      //FunctionVersion: 'ALL',
      MaxItems: 10
      };

      try {
      let result = await lambda.listFunctions(params).promise() {
      console.log(result);
      } catch (err) {
      console.log(err);
      throw err; // this try catch isn't really necessary
      }
      return "function finished";
      }





      share|improve this answer


























        1












        1








        1







        Make your function not be async.
        When it's marked as async and the handler function returns, lambda returns that value. You don't have an explicit return but nodejs returns undefined if a function ends without an explicit return value.



        You can also switch from using callbacks



        module.exports.handler = async (event, context) => {
        let params = {
        //MasterRegion: 'ALL',
        //FunctionVersion: 'ALL',
        MaxItems: 10
        };

        try {
        let result = await lambda.listFunctions(params).promise() {
        console.log(result);
        } catch (err) {
        console.log(err);
        throw err; // this try catch isn't really necessary
        }
        return "function finished";
        }





        share|improve this answer













        Make your function not be async.
        When it's marked as async and the handler function returns, lambda returns that value. You don't have an explicit return but nodejs returns undefined if a function ends without an explicit return value.



        You can also switch from using callbacks



        module.exports.handler = async (event, context) => {
        let params = {
        //MasterRegion: 'ALL',
        //FunctionVersion: 'ALL',
        MaxItems: 10
        };

        try {
        let result = await lambda.listFunctions(params).promise() {
        console.log(result);
        } catch (err) {
        console.log(err);
        throw err; // this try catch isn't really necessary
        }
        return "function finished";
        }






        share|improve this answer












        share|improve this answer



        share|improve this answer










        answered Nov 21 '18 at 21:21









        cementblockscementblocks

        1,859815




        1,859815
































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