Get Firestore data from a Cloud Function

Cloud Firestore Image

First, initialize admin and db,

const functions = require('firebase-functions');
const admin = require('firebase-admin');
admin.initializeApp();
const db = admin.firestore();

And the function you want to export,

exports.getData = functions.https.onRequest((req, res) => {
 const docRef = db.collection('collection name').doc('document name');
 const getDoc = docRef.get()
   .then(doc => {
     if (!doc.exists) {
       console.log('No such document!');
       return res.send('Not Found')
     } 
       console.log(doc.data());
       return res.send(doc.data());
   })
   .catch(err => {
     console.log('Error getting document', err);
   });
});

That’s it 😄 !

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