How to get data from Firestore in Cloud Function?












0















I need to know what I'm doing wrong here?



I'm calling this function from Flutter. The call back is getting done correctly and the first & second prints are coming in the "log" on Firbase. But getting undefined from the "Firestore"!!



This is the code in the Cloud Function:



var functions = require("firebase-functions");
let admin = require('firebase-admin');
admin.initializeApp(functions.config().firebase);
admin.firestore().settings({ timestampsInSnapshots: true });


exports.storeContact5 = functions.https.onCall((data, context) => {
// First print is working fine
console.log('test');
var recieverId = 'WqHxLoYvRxR9UK8sFJZ9WxTOIE32';
const check = admin.firestore().collection('users').doc(recieverId).get();
check.then(testValue => {
console.log(testValue.data.nickname);
return true;
}).catch(err => {
console.log('Error getting document', err);
});
console.log('test2');
// Return to flutter App (Working fine)
return {
repeat_message: 'ok!'
}
});


Screenshot for Firebase Log



enter image description here










share|improve this question

























  • @RahulMahadik - This is Cloud Function code!

    – Ahmed Abosrie
    Nov 20 '18 at 19:31
















0















I need to know what I'm doing wrong here?



I'm calling this function from Flutter. The call back is getting done correctly and the first & second prints are coming in the "log" on Firbase. But getting undefined from the "Firestore"!!



This is the code in the Cloud Function:



var functions = require("firebase-functions");
let admin = require('firebase-admin');
admin.initializeApp(functions.config().firebase);
admin.firestore().settings({ timestampsInSnapshots: true });


exports.storeContact5 = functions.https.onCall((data, context) => {
// First print is working fine
console.log('test');
var recieverId = 'WqHxLoYvRxR9UK8sFJZ9WxTOIE32';
const check = admin.firestore().collection('users').doc(recieverId).get();
check.then(testValue => {
console.log(testValue.data.nickname);
return true;
}).catch(err => {
console.log('Error getting document', err);
});
console.log('test2');
// Return to flutter App (Working fine)
return {
repeat_message: 'ok!'
}
});


Screenshot for Firebase Log



enter image description here










share|improve this question

























  • @RahulMahadik - This is Cloud Function code!

    – Ahmed Abosrie
    Nov 20 '18 at 19:31














0












0








0








I need to know what I'm doing wrong here?



I'm calling this function from Flutter. The call back is getting done correctly and the first & second prints are coming in the "log" on Firbase. But getting undefined from the "Firestore"!!



This is the code in the Cloud Function:



var functions = require("firebase-functions");
let admin = require('firebase-admin');
admin.initializeApp(functions.config().firebase);
admin.firestore().settings({ timestampsInSnapshots: true });


exports.storeContact5 = functions.https.onCall((data, context) => {
// First print is working fine
console.log('test');
var recieverId = 'WqHxLoYvRxR9UK8sFJZ9WxTOIE32';
const check = admin.firestore().collection('users').doc(recieverId).get();
check.then(testValue => {
console.log(testValue.data.nickname);
return true;
}).catch(err => {
console.log('Error getting document', err);
});
console.log('test2');
// Return to flutter App (Working fine)
return {
repeat_message: 'ok!'
}
});


Screenshot for Firebase Log



enter image description here










share|improve this question
















I need to know what I'm doing wrong here?



I'm calling this function from Flutter. The call back is getting done correctly and the first & second prints are coming in the "log" on Firbase. But getting undefined from the "Firestore"!!



This is the code in the Cloud Function:



var functions = require("firebase-functions");
let admin = require('firebase-admin');
admin.initializeApp(functions.config().firebase);
admin.firestore().settings({ timestampsInSnapshots: true });


exports.storeContact5 = functions.https.onCall((data, context) => {
// First print is working fine
console.log('test');
var recieverId = 'WqHxLoYvRxR9UK8sFJZ9WxTOIE32';
const check = admin.firestore().collection('users').doc(recieverId).get();
check.then(testValue => {
console.log(testValue.data.nickname);
return true;
}).catch(err => {
console.log('Error getting document', err);
});
console.log('test2');
// Return to flutter App (Working fine)
return {
repeat_message: 'ok!'
}
});


Screenshot for Firebase Log



enter image description here







firebase google-cloud-firestore google-cloud-functions






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Nov 21 '18 at 8:52









KENdi

5,7892821




5,7892821










asked Nov 20 '18 at 19:05









Ahmed AbosrieAhmed Abosrie

12




12













  • @RahulMahadik - This is Cloud Function code!

    – Ahmed Abosrie
    Nov 20 '18 at 19:31



















  • @RahulMahadik - This is Cloud Function code!

    – Ahmed Abosrie
    Nov 20 '18 at 19:31

















@RahulMahadik - This is Cloud Function code!

– Ahmed Abosrie
Nov 20 '18 at 19:31





@RahulMahadik - This is Cloud Function code!

– Ahmed Abosrie
Nov 20 '18 at 19:31












1 Answer
1






active

oldest

votes


















2














You should do testValue.data().nickname and not testValue.data.nickname, see https://firebase.google.com/docs/firestore/query-data/get-data#get_a_document and https://firebase.google.com/docs/reference/js/firebase.firestore.DocumentSnapshot#data.



Also, you should return a result only once and you should not return outside of the .then() if you want to return the result of the asynchronous operation.



In addition, see here how to handle errors: https://firebase.google.com/docs/functions/callable#handle_errors



So you may do as follows:



exports.storeContact5 = functions.https.onCall((data, context) => {
// First print is working fine
console.log('test');
var recieverId = 'WqHxLoYvRxR9UK8sFJZ9WxTOIE32';
const check = admin.firestore().collection('users').doc(recieverId).get();
return check.then(testValue => {
console.log(testValue.data().nickname);
return {repeat_message: 'ok!'};
}).catch(err => {
console.log('Error getting document', err);
throw new functions.https.HttpsError('Error getting document', err);
});
});


I would suggest you watch the videos from the official series: https://firebase.google.com/docs/functions/video-series/, in particular the ones titled "Learn JavaScript Promises"






share|improve this answer


























  • Thanks a lot :)) All working now

    – Ahmed Abosrie
    Nov 20 '18 at 19:55











  • @AhmedAbosrie Welcome to StackOverflow. Glad that I could help! You may accept my answer by clicking on the grey checkmark next to the answer and turn it to green, see stackoverflow.com/help/someone-answers.

    – Renaud Tarnec
    Nov 20 '18 at 20:06











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1 Answer
1






active

oldest

votes








1 Answer
1






active

oldest

votes









active

oldest

votes






active

oldest

votes









2














You should do testValue.data().nickname and not testValue.data.nickname, see https://firebase.google.com/docs/firestore/query-data/get-data#get_a_document and https://firebase.google.com/docs/reference/js/firebase.firestore.DocumentSnapshot#data.



Also, you should return a result only once and you should not return outside of the .then() if you want to return the result of the asynchronous operation.



In addition, see here how to handle errors: https://firebase.google.com/docs/functions/callable#handle_errors



So you may do as follows:



exports.storeContact5 = functions.https.onCall((data, context) => {
// First print is working fine
console.log('test');
var recieverId = 'WqHxLoYvRxR9UK8sFJZ9WxTOIE32';
const check = admin.firestore().collection('users').doc(recieverId).get();
return check.then(testValue => {
console.log(testValue.data().nickname);
return {repeat_message: 'ok!'};
}).catch(err => {
console.log('Error getting document', err);
throw new functions.https.HttpsError('Error getting document', err);
});
});


I would suggest you watch the videos from the official series: https://firebase.google.com/docs/functions/video-series/, in particular the ones titled "Learn JavaScript Promises"






share|improve this answer


























  • Thanks a lot :)) All working now

    – Ahmed Abosrie
    Nov 20 '18 at 19:55











  • @AhmedAbosrie Welcome to StackOverflow. Glad that I could help! You may accept my answer by clicking on the grey checkmark next to the answer and turn it to green, see stackoverflow.com/help/someone-answers.

    – Renaud Tarnec
    Nov 20 '18 at 20:06
















2














You should do testValue.data().nickname and not testValue.data.nickname, see https://firebase.google.com/docs/firestore/query-data/get-data#get_a_document and https://firebase.google.com/docs/reference/js/firebase.firestore.DocumentSnapshot#data.



Also, you should return a result only once and you should not return outside of the .then() if you want to return the result of the asynchronous operation.



In addition, see here how to handle errors: https://firebase.google.com/docs/functions/callable#handle_errors



So you may do as follows:



exports.storeContact5 = functions.https.onCall((data, context) => {
// First print is working fine
console.log('test');
var recieverId = 'WqHxLoYvRxR9UK8sFJZ9WxTOIE32';
const check = admin.firestore().collection('users').doc(recieverId).get();
return check.then(testValue => {
console.log(testValue.data().nickname);
return {repeat_message: 'ok!'};
}).catch(err => {
console.log('Error getting document', err);
throw new functions.https.HttpsError('Error getting document', err);
});
});


I would suggest you watch the videos from the official series: https://firebase.google.com/docs/functions/video-series/, in particular the ones titled "Learn JavaScript Promises"






share|improve this answer


























  • Thanks a lot :)) All working now

    – Ahmed Abosrie
    Nov 20 '18 at 19:55











  • @AhmedAbosrie Welcome to StackOverflow. Glad that I could help! You may accept my answer by clicking on the grey checkmark next to the answer and turn it to green, see stackoverflow.com/help/someone-answers.

    – Renaud Tarnec
    Nov 20 '18 at 20:06














2












2








2







You should do testValue.data().nickname and not testValue.data.nickname, see https://firebase.google.com/docs/firestore/query-data/get-data#get_a_document and https://firebase.google.com/docs/reference/js/firebase.firestore.DocumentSnapshot#data.



Also, you should return a result only once and you should not return outside of the .then() if you want to return the result of the asynchronous operation.



In addition, see here how to handle errors: https://firebase.google.com/docs/functions/callable#handle_errors



So you may do as follows:



exports.storeContact5 = functions.https.onCall((data, context) => {
// First print is working fine
console.log('test');
var recieverId = 'WqHxLoYvRxR9UK8sFJZ9WxTOIE32';
const check = admin.firestore().collection('users').doc(recieverId).get();
return check.then(testValue => {
console.log(testValue.data().nickname);
return {repeat_message: 'ok!'};
}).catch(err => {
console.log('Error getting document', err);
throw new functions.https.HttpsError('Error getting document', err);
});
});


I would suggest you watch the videos from the official series: https://firebase.google.com/docs/functions/video-series/, in particular the ones titled "Learn JavaScript Promises"






share|improve this answer















You should do testValue.data().nickname and not testValue.data.nickname, see https://firebase.google.com/docs/firestore/query-data/get-data#get_a_document and https://firebase.google.com/docs/reference/js/firebase.firestore.DocumentSnapshot#data.



Also, you should return a result only once and you should not return outside of the .then() if you want to return the result of the asynchronous operation.



In addition, see here how to handle errors: https://firebase.google.com/docs/functions/callable#handle_errors



So you may do as follows:



exports.storeContact5 = functions.https.onCall((data, context) => {
// First print is working fine
console.log('test');
var recieverId = 'WqHxLoYvRxR9UK8sFJZ9WxTOIE32';
const check = admin.firestore().collection('users').doc(recieverId).get();
return check.then(testValue => {
console.log(testValue.data().nickname);
return {repeat_message: 'ok!'};
}).catch(err => {
console.log('Error getting document', err);
throw new functions.https.HttpsError('Error getting document', err);
});
});


I would suggest you watch the videos from the official series: https://firebase.google.com/docs/functions/video-series/, in particular the ones titled "Learn JavaScript Promises"







share|improve this answer














share|improve this answer



share|improve this answer








edited Nov 20 '18 at 19:48

























answered Nov 20 '18 at 19:32









Renaud TarnecRenaud Tarnec

10.8k21531




10.8k21531













  • Thanks a lot :)) All working now

    – Ahmed Abosrie
    Nov 20 '18 at 19:55











  • @AhmedAbosrie Welcome to StackOverflow. Glad that I could help! You may accept my answer by clicking on the grey checkmark next to the answer and turn it to green, see stackoverflow.com/help/someone-answers.

    – Renaud Tarnec
    Nov 20 '18 at 20:06



















  • Thanks a lot :)) All working now

    – Ahmed Abosrie
    Nov 20 '18 at 19:55











  • @AhmedAbosrie Welcome to StackOverflow. Glad that I could help! You may accept my answer by clicking on the grey checkmark next to the answer and turn it to green, see stackoverflow.com/help/someone-answers.

    – Renaud Tarnec
    Nov 20 '18 at 20:06

















Thanks a lot :)) All working now

– Ahmed Abosrie
Nov 20 '18 at 19:55





Thanks a lot :)) All working now

– Ahmed Abosrie
Nov 20 '18 at 19:55













@AhmedAbosrie Welcome to StackOverflow. Glad that I could help! You may accept my answer by clicking on the grey checkmark next to the answer and turn it to green, see stackoverflow.com/help/someone-answers.

– Renaud Tarnec
Nov 20 '18 at 20:06





@AhmedAbosrie Welcome to StackOverflow. Glad that I could help! You may accept my answer by clicking on the grey checkmark next to the answer and turn it to green, see stackoverflow.com/help/someone-answers.

– Renaud Tarnec
Nov 20 '18 at 20:06


















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