I am facing an issue with my firestore cloud functions. I am trying to set up a trigger to send a notification when a new document is added.
const functions = require("firebase-functions");
const admin = require("firebase-admin");
admin.initializeApp(functions.config().firebase);
/*exports.helloWorld = functions.https.onRequest((request, response) => {
response.send("Hello ninjas!");
});*/
// Function to be called when new event occurs
const createNotification = notification => {
return admin
.firestore()
.collection("notifications")
.add(notification)
.then(doc => console.log("Notification added", doc));
};
//Trigger when new project is created
exports.projectCreated = functions.firestore
.document("project/{projectId}")
.onCreate(doc => {
const project = doc.data();
const notification = {
content: "Added a new project",
time: admin.firestore.FieldValue.serverTimestamp()
};
return createNotification(notification);
});
On the client side when I add a new project I am able to see the console message that notification is added but when I check the logs in the Cloud function I cannot see any logs. Am I missing anything here?
Replace
.onCreate(doc => {
with
.onCreate((snap, context) => {
as described at
https://firebase.google.com/docs/functions/beta-v1-diff#cloud-firestore
Related
I am using Firebase functions for Firestore database. I am trying to update a field based on the new tweet being added.
Here is my Firebase Function on production:
const admin = require('firebase-admin')
admin.initializeApp()
const db = admin.firestore()
const functions = require("firebase-functions");
functions.logger.log("START OF FUNCTION");
exports.myFunction = functions.firestore
.document('timelines/{userId}/tweets/{tweetId}')
.onCreate((change, context) => {
const userId = context.params.userId
const tweetId = context.params.tweetId
functions.logger.log(context.params.userId);
functions.logger.log(context.params.tweetId);
db.doc(`/timelines/${userId}/tweets/${tweetId}`).update({likeCount: 200})
})
I am triggering it through an iPhone app. I am logged in to my account and I add a new Tweet. The Firebase function does get called but userId and tweetId are undefined. I am not sure why they are undefined. Any ideas?
Without knowing your client-side logic it's difficult to know if there are other issues. I would suggest adding some error handling to narrow down the cause. You could also try pulling it from the data response instead of context (assuming the schema matches).
Also note using 'snap' instead of 'change' as change is generally reserved for 'onWrite' and 'onUpdate' hooks.
exports.myFunction = functions.firestore
.document('timelines/{userId}/tweets/{tweetId}')
.onCreate(async (snap, context) => {
try {
const { userId, tweetId } = snap.data();
functions.logger.log(userId);
functions.logger.log(tweetId);
return await db.doc(`/timelines/${userId}/tweets/${tweetId}`).update({ likeCount: 200 });
}
catch (error) {
functions.logger.log(error);
}
});
I have been working on a firebase project in which I created a cloud function that creates documents in firestore. This is the function -
export const createExpenseCategory = functions
.region("europe-west1")
.https.onCall(async (data, context) => { // data is a string
if (!context.auth?.uid) { // check that requesting user is authenticated
throw new functions.https.HttpsError(
"unauthenticated",
"Not Authenticated"
);
}
const res = await admin
.firestore()
.collection("/categories/")
.where("uid", "==", context.auth.uid)
.get();
const categoryExists = res.docs.find((doc) => doc.data().name === data); // check that there are not duplicates.
// doc looks like this -
// {
// "name": "Food",
// "uid": "some_long_uid"
// }
if (categoryExists) {
throw new functions.https.HttpsError(
"already-exists",
`Category ${data} already exists`
);
}
return admin
.firestore()
.collection("/categories/")
.add({ name: data, uid: context.auth.uid });
});
As you can see, at the beginning of the function I check whether the user that sent the request is authenticated with the context parameter. Everything works fine when I play around with it in my web app, but I have been trying to figure out a way to create a unittest for this function. My problem is that I can't really figure out how to create an authenticated request to make sure that my function doesn't fail every time. I tried to look online for any documentation but couldn't seem to find any.
Thanks in advance!
You can unit test your functions using the firebase-functions-test SDK. The guide mentions you can mock the data within the eventContext or context parameter passed to your function. This works for mocking the uid field of the auth object:
// Left out authType as it's only for RTDB
wrapped(data, {
auth: {
uid: 'jckS2Q0'
}
});
The guide uses mocha for testing, but you can use other testing frameworks. I made a simple test to see if it would work and I could send the mock uid to the function, which worked as expected:
index.js
exports.authTest = functions.https.onCall( async (data, context) => {
if(!context.auth.uid){
throw new functions.https.HttpsError('unauthenticated', 'Missing Authentication');
}
const q = await admin.firestore().collection('users').where('uid', '==', context.auth.uid).get();
const userDoc = q.docs.find(doc => doc.data().uid == context.auth.uid);
return admin.firestore().collection('users').doc(userDoc.id).update({name: data.name});
});
index.test.js
const test = require('firebase-functions-test')({
projectId: PROJECT_ID
}, SERVICE_ACCTKEY); //Path to service account file
const admin = require('firebase-admin');
describe('Cloud Functions Test', () => {
let myFunction;
before(() => {
myFunction = require('../index.js');
});
describe('AuthTest', () => {
it('Should update user name in UID document', () => {
const wrapped = test.wrap(myFunction.authTest);
const data = {
name: 'FooBar'
}
const context = {
auth: {
uid: "jckS2Q0" //Mocked uid value
}
}
return wrapped(data, context).then(async () => {
//Asserts that the document is updated with expected value, fetches it after update
const q = await admin.firestore().collection('users').where('uid', '==', context.auth.uid).get();
const userDoc = q.docs.find(doc => doc.data().uid == context.auth.uid);
assert.equal(userDoc.data().name, 'FooBar');
});
});
});
});
Let me know if this was useful.
I have been reading around but cannot find the answer
I tried my firebase and it's not storing any data.
Here's the related inline editor
const functions = require('firebase-functions');
const admin = require('firebase-admin');
admin.initializeApp();
const db = admin.firestore();
function angerEmotionCapture(agent) {
let angryTo = agent.parameters.angryDirectedTo;
agent.add(`love your ${angryTo},dude`);
return db.collection('directedTo').add({directedTo: angryTo});
}
Here's my firebase database
Any help will be greatly appreciated, thanks!
Please have a look into the following sample code showing how to connect Firebase's Firestore database to Dialogflow fulfillment hosting on Firebase functions:
'use strict';
const functions = require('firebase-functions');
const admin = require('firebase-admin');
const {WebhookClient} = require('dialogflow-fulfillment');
process.env.DEBUG = 'dialogflow:*'; // enables lib debugging statements
admin.initializeApp(functions.config().firebase);
const db = admin.firestore();
exports.dialogflowFirebaseFulfillment = functions.https.onRequest((request, response) => {
const agent = new WebhookClient({ request, response });
function writeToDb (agent) {
// Get parameter from Dialogflow with the string to add to the database
const databaseEntry = agent.parameters.databaseEntry;
// Get the database collection 'dialogflow' and document 'agent' and store
// the document {entry: "<value of database entry>"} in the 'agent' document
const dialogflowAgentRef = db.collection('dialogflow').doc('agent');
return db.runTransaction(t => {
t.set(dialogflowAgentRef, {entry: databaseEntry});
return Promise.resolve('Write complete');
}).then(doc => {
agent.add(`Wrote "${databaseEntry}" to the Firestore database.`);
}).catch(err => {
console.log(`Error writing to Firestore: ${err}`);
agent.add(`Failed to write "${databaseEntry}" to the Firestore database.`);
});
}
// Map from Dialogflow intent names to functions to be run when the intent is matched
let intentMap = new Map();
intentMap.set('WriteToFirestore', writeToDb);
agent.handleRequest(intentMap);
});
Have a look into the Dialogflow's Firestore GitHub example
I'm working on the group functionality of my app where members of the group can add task to a group that they are currently working on. So, when a task is added I want to notify all members using FCM that a task had been added to the group.
EDIT:
The code to add the task to a group is run on the client and works successfully. The purpose of the cloud function is just to send cloud messages to all the members of the group that a task has been added by a particular member.
This is my logic for the cloud function :
1st. As a task can be added to multiple groups at a time I'm using a forEach().
2nd. I'm fetching the uids of the Members in the groups and pushing them into an array(uids) so that later I can retrieve their fcmTokens.
3rd. Running a forEach on the uids to retrieve the fcmTokens.
4th.Sending Cloud message to devices.
But the cloud function doesn't execute as expected.
This my cloud function:
exports.newTaskAdded = functions.https.onCall(async (data, context) => {
const groups = data.groups; //Can be multiple groups hence an array.
const uid = data.uid;
const author = data.author;
const taskId = data.taskId;
const taskTitle = data.taskTitle;
try {
groups.forEach(async group => {
const groupName = group.groupName;
console.log('groupName: ', groupName);
const groupId = groups.groupId;
const membersPromises = [];
membersPromises.push(
admin
.firestore()
.collection('Groups')
.doc(`${groupId}`)
.collection('Members') //Members collection has document for each user with their uid as the document name.
.get(),
);
console.log('memberPromises: ', membersPromises);//Function stops after this.
const membersSnapshot = await Promise.all(membersPromises);
console.log('membersSnapshots', membersSnapshot);
const uids = [];
membersSnapshot.forEach(doc => {
doc.forEach(snap => {
console.log(snap.id);
uids.push(snap.id);
});
});
console.log(uids);
const uidPromises = [];
uids.forEach(uid => {
uidPromises.push(
admin
.firestore()
.collection('Users')
.doc(`${uid}`)
.get(),
);
});
console.log('uidPromises: ', uidPromises);
const tokensSnapshots = await Promise.all(uidPromises);
const notifPromises = [];
tokensSnapshots.forEach(snap => {
console.log(snap.data());
const token = Object.keys(snap.data().fcmTokens);
const payload = {
notification: {
title: `${author} has added a new task to ${groupName}`,
body: `Task Added: ${taskTitle}`,
sound: 'default',
},
};
notifPromises.push(admin.messaging().sendToDevice(token, payload));
});
await Promise.all(notifPromises);
});
} catch (err) {
console.log(err);
}
return {result: 'OK'};
});
This is my log:
As you can see there is no error shown.
Help would be very much appreciated. Thank you
I'm trying to get started with SendGrid and a Firestore database, using Firebase functions. I've gone through tutorials and set up according to the latest notation, (snap, context) instead of (event). I can't figure out what's wrong with this script:
// The Cloud Functions for Firebase SDK to create Cloud Functions and setup triggers.
const functions = require('firebase-functions');
// The Firebase Admin SDK to access the Firebase Realtime Database.
const admin = require('firebase-admin');
admin.initializeApp();
//admin.initializeApp(functions.config().firebase);
const SENDGRID_API_KEY = my-api-key-is-here;
const sendgridemail = require('#sendgrid/mail');
sendgridemail.setApiKey(SENDGRID_API_KEY);
exports.confEmail = functions.firestore
.document('clients/{clientId}/projects/{projectId}/form-data/{docId}') //any write to this node will trigger email
.onCreate((snap, context) => {
const clientId = context.params.clientId;
const projectId = context.params.projectId;
const docId = context.params.docId;
const fsdb = admin.firestore();
return fsdb.collection('clients/'+clientId+'/projects/'+projectId+'/form-data').doc(docId)
.get()
.then(doc => {
const docData = doc.data()
const msgbody = {
to: docData.EMAIL,
from: 'xxxxx#gmail.com',
subject: 'Form Submission Confirmation',
templateId: 'd-07bf6a2b89084951a30ceddcd9c8915f',
substitutionWrappers: ['{{', '}}'],
substitutions: {
formdata: "Message Body\n<br>"+docData.CONF_MSG
}
};
return confEmail.send(msgbody)
})
.then(() => console.log('confimration mail sent success') )
.catch(err => console.log(err) )
});
The error message generated in the Firebase console is mysterious, and I'm not even sure how to interpret it.
ReferenceError: confEmail is not defined
at fsdb.collection.doc.get.then.doc (/user_code/index.js:48:13)
at process._tickDomainCallback (internal/process/next_tick.js:135:7
)
My best guess just that my 'confEmail' function is not defined because there's an error in it, but I can't figure out what. Or does it mean something else?
It looks like most of the tutorial scripts are over-complicating things. and a simpler script like this seems to work.
const sendgrid = require('#sendgrid/mail');
sendgrid.setApiKey(SENDGRID_API_KEY);
exports.confEmail = functions.firestore
.document('clients/{clientId}/projects/{projectId}/form-data/{docId}') //any write to this node will trigger email
.onCreate((snap, context) => {
const docData = snap.data();
const msgbody = {
to: docData.EMAIL,
from: 'xxxxxxx#gmail.com',
subject: 'Form Submission Confirmation',
templateId: 'd-07bf6a2b89084951a30ceddcd9c8915f',
substitutionWrappers: ['{{', '}}'],
substitutions: {
formdata: docData.CONF_MSG
}
};
return sendgrid.send(msgbody)
});