Firestore无法与AWS Lambda一起使用

Question

I have initialized firebase inside my AWS lambda function using the Node.js 8.10 runtime. This is the relevant code:

'use strict';

const https = require('https'),
      firebase = require('firebase-admin'),
      admin = require('firebase-admin');
//Initialize firebase
let serviceAccount = require('./one-deed-6b407-firebase-adminsdk-ha9ud-3c7ddb5906.json');

admin.initializeApp({
  credential: admin.credential.cert(serviceAccount)

});
let db = admin.firestore();

Later in the code I created a firestore database:

exports.handler = (event, context, callback) => {
   var docRef = db.collection('users').doc('alovelace');

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

However, the document in question was not added even though the code works properly when I run I locally.

Answer 1

Have a look at the execution time of the function. It should be quite small. The lambda code is not waiting for the Firestore function to be executed.

As @doug-stevenson pointed out you are not using the promise. Change the lambda function to async and put a await in front of the set. I hope that helps.

exports.handler = async function(event, context, callback) {
var docRef = db.collection('users').doc('alovelace');

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