Mixing
Trying to connect to firebase function from React app - cors issue?
I'm creating a react application. I have code like this
async componentDidMount() {
const questions = await axios.get('getQuestions');
console.log(questions);
}
(I have a baseURL set up for axios and all, so the URL is correct)
I created a firebase function as follows (typescript)
import * as functions from 'firebase-functions';
import * as admin from 'firebase-admin';
admin.initializeApp();
admin.firestore().settings({ timestampsInSnapshots: true });
const db = admin.firestore();
exports.getQuestions = functions.https.onRequest(async (request, response) => {
const questions = ;
const querySnapshot = await db.collection('questions').get();
const documents = querySnapshot.docs;
documents.forEach(doc => {
questions.push(doc.data());
});
response.json({ questions: questions });
});
Now when I build and run firebase deploy --only functions, and then visit the url directly, everything works. I see my questions.
But in the react app, I get the following error
Access to XMLHttpRequest at '.../getQuestions' from origin
'http://localhost:3000' has been blocked by CORS policy: No
'Access-Control-Allow-Origin' header is present on the requested
resource.
After some googling, I tried
import * as functions from 'firebase-functions';
import * as admin from 'firebase-admin';
admin.initializeApp();
admin.firestore().settings({ timestampsInSnapshots: true });
const db = admin.firestore();
const cors = require('cors')({ origin: true });
exports.getQuestions = functions.https.onRequest(
cors(async (request, response) => {
const questions = ;
const querySnapshot = await db.collection('questions').get();
const documents = querySnapshot.docs;
documents.forEach(doc => {
questions.push(doc.data());
});
response.json({ questions: questions });
})
);
But that just gave me an error when I ran firebase deploy --only functions
✔ functions: Finished running predeploy script. i functions:
ensuring necessary APIs are enabled... ✔ functions: all necessary
APIs are enabled i functions: preparing functions directory for
uploading...
Error: Error occurred while parsing your function triggers.
TypeError: Cannot read property 'origin' of undefined
at ...
And tbh, even if this command worked, I don't know if it is the correct solution
firebase cors google-cloud-firestore google-cloud-functions
asked Jan 1 at 17:41
AsoolAsool
6401723
add a comment |
I'm creating a react application. I have code like this
async componentDidMount() {
const questions = await axios.get('getQuestions');
console.log(questions);
}
(I have a baseURL set up for axios and all, so the URL is correct)
I created a firebase function as follows (typescript)
import * as functions from 'firebase-functions';
import * as admin from 'firebase-admin';
admin.initializeApp();
admin.firestore().settings({ timestampsInSnapshots: true });
const db = admin.firestore();
exports.getQuestions = functions.https.onRequest(async (request, response) => {
const questions = ;
const querySnapshot = await db.collection('questions').get();
const documents = querySnapshot.docs;
documents.forEach(doc => {
questions.push(doc.data());
});
response.json({ questions: questions });
});
Now when I build and run firebase deploy --only functions, and then visit the url directly, everything works. I see my questions.
But in the react app, I get the following error
Access to XMLHttpRequest at '.../getQuestions' from origin
'http://localhost:3000' has been blocked by CORS policy: No
'Access-Control-Allow-Origin' header is present on the requested
resource.
After some googling, I tried
import * as functions from 'firebase-functions';
import * as admin from 'firebase-admin';
admin.initializeApp();
admin.firestore().settings({ timestampsInSnapshots: true });
const db = admin.firestore();
const cors = require('cors')({ origin: true });
exports.getQuestions = functions.https.onRequest(
cors(async (request, response) => {
const questions = ;
const querySnapshot = await db.collection('questions').get();
const documents = querySnapshot.docs;
documents.forEach(doc => {
questions.push(doc.data());
});
response.json({ questions: questions });
})
);
But that just gave me an error when I ran firebase deploy --only functions
✔ functions: Finished running predeploy script. i functions:
ensuring necessary APIs are enabled... ✔ functions: all necessary
APIs are enabled i functions: preparing functions directory for
uploading...
Error: Error occurred while parsing your function triggers.
TypeError: Cannot read property 'origin' of undefined
at ...
And tbh, even if this command worked, I don't know if it is the correct solution
firebase cors google-cloud-firestore google-cloud-functions
asked Jan 1 at 17:41
AsoolAsool
6401723
add a comment |
I'm creating a react application. I have code like this
async componentDidMount() {
const questions = await axios.get('getQuestions');
console.log(questions);
}
(I have a baseURL set up for axios and all, so the URL is correct)
I created a firebase function as follows (typescript)
import * as functions from 'firebase-functions';
import * as admin from 'firebase-admin';
admin.initializeApp();
admin.firestore().settings({ timestampsInSnapshots: true });
const db = admin.firestore();
exports.getQuestions = functions.https.onRequest(async (request, response) => {
const questions = ;
const querySnapshot = await db.collection('questions').get();
const documents = querySnapshot.docs;
documents.forEach(doc => {
questions.push(doc.data());
});
response.json({ questions: questions });
});
Now when I build and run firebase deploy --only functions, and then visit the url directly, everything works. I see my questions.
But in the react app, I get the following error
Access to XMLHttpRequest at '.../getQuestions' from origin
'http://localhost:3000' has been blocked by CORS policy: No
'Access-Control-Allow-Origin' header is present on the requested
resource.
After some googling, I tried
import * as functions from 'firebase-functions';
import * as admin from 'firebase-admin';
admin.initializeApp();
admin.firestore().settings({ timestampsInSnapshots: true });
const db = admin.firestore();
const cors = require('cors')({ origin: true });
exports.getQuestions = functions.https.onRequest(
cors(async (request, response) => {
const questions = ;
const querySnapshot = await db.collection('questions').get();
const documents = querySnapshot.docs;
documents.forEach(doc => {
questions.push(doc.data());
});
response.json({ questions: questions });
})
);
But that just gave me an error when I ran firebase deploy --only functions
✔ functions: Finished running predeploy script. i functions:
ensuring necessary APIs are enabled... ✔ functions: all necessary
APIs are enabled i functions: preparing functions directory for
uploading...
Error: Error occurred while parsing your function triggers.
TypeError: Cannot read property 'origin' of undefined
at ...
And tbh, even if this command worked, I don't know if it is the correct solution
firebase cors google-cloud-firestore google-cloud-functions
asked Jan 1 at 17:41
AsoolAsool
6401723
I'm creating a react application. I have code like this
async componentDidMount() {
const questions = await axios.get('getQuestions');
console.log(questions);
}
(I have a baseURL set up for axios and all, so the URL is correct)
I created a firebase function as follows (typescript)
import * as functions from 'firebase-functions';
import * as admin from 'firebase-admin';
admin.initializeApp();
admin.firestore().settings({ timestampsInSnapshots: true });
const db = admin.firestore();
exports.getQuestions = functions.https.onRequest(async (request, response) => {
const questions = ;
const querySnapshot = await db.collection('questions').get();
const documents = querySnapshot.docs;
documents.forEach(doc => {
questions.push(doc.data());
});
response.json({ questions: questions });
});
Now when I build and run firebase deploy --only functions, and then visit the url directly, everything works. I see my questions.
But in the react app, I get the following error
Access to XMLHttpRequest at '.../getQuestions' from origin
'http://localhost:3000' has been blocked by CORS policy: No
'Access-Control-Allow-Origin' header is present on the requested
resource.
After some googling, I tried
import * as functions from 'firebase-functions';
import * as admin from 'firebase-admin';
admin.initializeApp();
admin.firestore().settings({ timestampsInSnapshots: true });
const db = admin.firestore();
const cors = require('cors')({ origin: true });
exports.getQuestions = functions.https.onRequest(
cors(async (request, response) => {
const questions = ;
const querySnapshot = await db.collection('questions').get();
const documents = querySnapshot.docs;
documents.forEach(doc => {
questions.push(doc.data());
});
response.json({ questions: questions });
})
);
But that just gave me an error when I ran firebase deploy --only functions
✔ functions: Finished running predeploy script. i functions:
ensuring necessary APIs are enabled... ✔ functions: all necessary
APIs are enabled i functions: preparing functions directory for
uploading...
Error: Error occurred while parsing your function triggers.
TypeError: Cannot read property 'origin' of undefined
at ...
And tbh, even if this command worked, I don't know if it is the correct solution
firebase cors google-cloud-firestore google-cloud-functions
firebase cors google-cloud-firestore google-cloud-functions
asked Jan 1 at 17:41
AsoolAsool
6401723
asked Jan 1 at 17:41
AsoolAsool
6401723
asked Jan 1 at 17:41
AsoolAsool
6401723
asked Jan 1 at 17:41
AsoolAsool
6401723
asked Jan 1 at 17:41
AsoolAsool
6401723
6401723
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
Got it :) I was doing something silly
import * as cors from 'cors';
const corsHandler = cors({ origin: true });
exports.getQuestions = functions.https.onRequest(async (request, response) => {
corsHandler(request, response, async () => {
const questions = ;
const querySnapshot = await db.collection('questions').get();
const documents = querySnapshot.docs;
documents.forEach(doc => {
questions.push(doc.data());
});
response.status(200).json({ questions: questions });
});
});
answered Jan 1 at 18:06
AsoolAsool
6401723
add a comment |
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1 Answer
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1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
Got it :) I was doing something silly
import * as cors from 'cors';
const corsHandler = cors({ origin: true });
exports.getQuestions = functions.https.onRequest(async (request, response) => {
corsHandler(request, response, async () => {
const questions = ;
const querySnapshot = await db.collection('questions').get();
const documents = querySnapshot.docs;
documents.forEach(doc => {
questions.push(doc.data());
});
response.status(200).json({ questions: questions });
});
});
answered Jan 1 at 18:06
AsoolAsool
6401723
add a comment |
Got it :) I was doing something silly
import * as cors from 'cors';
const corsHandler = cors({ origin: true });
exports.getQuestions = functions.https.onRequest(async (request, response) => {
corsHandler(request, response, async () => {
const questions = ;
const querySnapshot = await db.collection('questions').get();
const documents = querySnapshot.docs;
documents.forEach(doc => {
questions.push(doc.data());
});
response.status(200).json({ questions: questions });
});
});
answered Jan 1 at 18:06
AsoolAsool
6401723
add a comment |
Got it :) I was doing something silly
import * as cors from 'cors';
const corsHandler = cors({ origin: true });
exports.getQuestions = functions.https.onRequest(async (request, response) => {
corsHandler(request, response, async () => {
const questions = ;
const querySnapshot = await db.collection('questions').get();
const documents = querySnapshot.docs;
documents.forEach(doc => {
questions.push(doc.data());
});
response.status(200).json({ questions: questions });
});
});
answered Jan 1 at 18:06
AsoolAsool
6401723
Got it :) I was doing something silly
import * as cors from 'cors';
const corsHandler = cors({ origin: true });
exports.getQuestions = functions.https.onRequest(async (request, response) => {
corsHandler(request, response, async () => {
const questions = ;
const querySnapshot = await db.collection('questions').get();
const documents = querySnapshot.docs;
documents.forEach(doc => {
questions.push(doc.data());
});
response.status(200).json({ questions: questions });
});
});
answered Jan 1 at 18:06
AsoolAsool
6401723
answered Jan 1 at 18:06
AsoolAsool
6401723
answered Jan 1 at 18:06
AsoolAsool
6401723
answered Jan 1 at 18:06
AsoolAsool
6401723
6401723
add a comment |
add a comment |
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