Firebase AdminSDK in AWS Lambda (module initialisation error: Error)

[kumarkeviv]

Describe your environment

• Operating System version: AWS Lambda
• Firebase SDK version: 5.11.0
• Firebase Product: Firestore

Describe the problem

I have been trying to connect my lambda function with Firestore DB using Admin SDK but its throwing error "module initialisation error: Error"

Its clearly an issue with Firesbase admin sdk, as every-time I comment this component, the rest of the component works fine. Could you please let me know what is the issue?

Steps to reproduce:

What happened? How can we make the problem occur?
This could be a description, log/console output, etc.

Relevant Code:

'use strict';
const Alexa = require('alexa-sdk');
const firebase = require('firebase-admin');
const APP_ID = '---';

const SKILL_NAME = '----';
const HELP_MESSAGE = '---';
const HELP_REPROMPT = '----';
const STOP_MESSAGE = '---';

module.exports.Test = (event, context, callback) => {

    context.callbackWaitsForEmptyEventLoop = false;

    if (firebase.apps.length == 0) {
        firebase.initializeApp({
            credential: firebase.credential.cert('---'),
            databaseURL: "---"
        });
    }

    var db = firebase.firestore();
    var docRef = db.collection('users')
        .doc('alovelace');

    var setAda = docRef.set({
        first: 'Ada',
        last: 'Lovelace',
        born: 1815
    });
};

const handlers = {
    'LaunchRequest': function () {
        this.emit('BasicFunction');
    },
    //Help
    'AMAZON.HelpIntent': function () {
        const speechOutput = HELP_MESSAGE;
        const reprompt = HELP_REPROMPT;

        this.response.speak(speechOutput)
            .listen(reprompt);
        this.emit(':responseReady');
    },
    //Cancel
    'AMAZON.CancelIntent': function () {
        this.response.speak(STOP_MESSAGE);
        this.emit(':responseReady');
    },
    //Stop
    'AMAZON.StopIntent': function () {
        this.response.speak(STOP_MESSAGE);
        this.emit(':responseReady');
    },
};

exports.handler = function (event, context, callback) {
    const alexa = Alexa.handler(event, context, callback);
    alexa.APP_ID = APP_ID;
    alexa.registerHandlers(handlers);
    alexa.execute();
};

####Logs from CloudWatch

module initialization error: Error
at FirebaseAppError.Error (native)
at FirebaseAppError.FirebaseError [as constructor] (/var/task/node_modules/firebase-admin/lib/utils/error.js:39:28)
at FirebaseAppError.PrefixedFirebaseError [as constructor] (/var/task/node_modules/firebase-admin/lib/utils/error.js:85:28)
at new FirebaseAppError (/var/task/node_modules/firebase-admin/lib/utils/error.js:119:28)
at Function.Certificate.fromPath (/var/task/node_modules/firebase-admin/lib/auth/credential.js:142:19)
at new CertCredential (/var/task/node_modules/firebase-admin/lib/auth/credential.js:192:25)
at Object.cert (/var/task/node_modules/firebase-admin/lib/firebase-namespace.js:224:58)
at Object.<anonymous> (/var/task/index.js:14:41)
at Module._compile (module.js:570:32)
at Object.Module._extensions..js (module.js:579:10)

[google-oss-bot]

Hey there! I couldn't figure out what this issue is about, so I've labeled it for a human to triage. Hang tight.

[google-oss-bot]

Hmmm this issue does not seem to follow the issue template. Make sure you provide all the required information.

[hiranya911]

Are you using Docker to deploy your function?

[kumarkeviv]

No, I am installing the dependency in local folder along with my code. Later uploading the zipped folder to lambda function via console.

[hiranya911]

You have to use Docker to use Firestore clients in AWS Lambda: https://medium.com/@samstern_58566/how-to-use-cloud-firestore-on-aws-lambda-4bf6d3a473d9

[kumarkeviv]

Hi @hiranya911

Thanks for the quick response, I am trying to use the suggested solution but it doesn't seems to be working.

Every-time, I follow the steps listed in blog, its resulting in empty node_modules folder, even though the code executes properly.

Also I tried to directly import the package as you mentioned here in #104
"I've published an RC at https://storage.googleapis.com/firebase-admin-node/firebase-admin-5.4.3-rc0.tgz"

But still it throws "Unable to import module 'index': Error" in cloud watch.

[kumarkeviv]

@hiranya911 adding more asset and error log.

Unable to import module 'index': Error at Function.Module._resolveFilename (module.js:469:15) at Function.Module._load (module.js:417:25) at Module.require (module.js:497:17) at require (internal/module.js:20:19) at Object.<anonymous> (/var/task/index.js:4:22) at Module._compile (module.js:570:32) at Object.Module._extensions..js (module.js:579:10) at Module.load (module.js:487:32) at tryModuleLoad (module.js:446:12) at Function.Module._load (module.js:438:3)

//Missing firebase_admin folder after executing the code.

Not sure, how to resolve this issue :(

[hiranya911]

What's in your package.json?

[kumarkeviv]

I am trying to use Firebase admin for my Alexa app.
So, my final package.json is like:

{
  "name": "firestore-on-lambda",
  "version": "1.0.0",
  "main": "index.js",
  "dependencies": {
    "firebase-admin": "^5.4.2"
    "alexa-sdk": "^1.0.25"
  }
}

But I also, tried below :

{
  "name": "firestore-on-lambda",
  "version": "1.0.0",
  "main": "index.js",
  "dependencies": {
    "firebase-admin": "^5.4.2"
  }
}

Same result, no firebase_admin folder is being generated.

[kumarkeviv]

Any help?

[hiranya911]

@samtstern who may have some ideas.

[samtstern]

@kumarkeviv check out this blog post I wrote about using Cloud Firestore on AWS Lambda, which will tell you how to get firebase-admin set up.

https://medium.com/@samstern_58566/how-to-use-cloud-firestore-on-aws-lambda-4bf6d3a473d9

[hiranya911]

@samtstern I believe he's following that article, but running into this weird issue (@kumarkeviv can you confirm?)

[kumarkeviv]

Yes, I am already following that blog article, but its not generating any firebase-admin folder. :(