CODEWITHSUNDEEP
firebasegoogle-cloud-firestoregoogle-cloud-functions
Divya Galla
Divya Galla

Reputation: 513

How to trigger Cloud Functions from Google cloud firestore

How to send the DocumentReference.getId() that is generated every time a new document was added to firestore from Android Studio to cloud function that triggers when there is a write/create operation on Firestore. I tried following

'use strict';
const  https = require( 'firebase-functions');
const functions = require('firebase-functions');
const Firestore = require('@google-cloud/firestore');
const firestore = new Firestore();
const admin = require('firebase-admin');
admin.initializeApp(functions.config().firebase);
exports.helloUser = functions.firestore
    .document('BankInform/Moj2HBrxepX5R7FonvrO')
    .onUpdate(event =>{
    var newValue = event.data.data();
return event.data.ref.update({
    "status": "Success"
    });

    });

But I have to give the autoid of document.How to pass document id from android studio to cloud functions

Upvotes: 0

Views: 1281

Answers (1)

Mike McDonald
Mike McDonald

Reputation: 15963

You want to use wildcards in your function:

exports.helloUser = functions.firestore
    .document('BankInform/{transactionId}')
    .onUpdate(event =>{
        var transactionId = event.params.transactionId
        console.log(transactionId);  // Moj2HBrxepX5R7FonvrO
    });

As you can see, you should be able to use event.params to get the appropriate document name from the function.

Upvotes: 2

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