Unable to deploy firebase functions

Question

Whenever i'm running "firebase deploy --only functions" it hits up with this error Error occurred while parsing your function triggers.

TypeError: functions.https.onCall(...).then is not a function at Object. (C:\Users\Lenovo\Desktop\Firebase Revision\functions\index.js:11:4) at Module._compile (internal/modules/cjs/loader.js:1158:30) at Object.Module._extensions..js (internal/modules/cjs/loader.js:1178:10) at Module.load (internal/modules/cjs/loader.js:1002:32) at Function.Module._load (internal/modules/cjs/loader.js:901:14) at Module.require (internal/modules/cjs/loader.js:1044:19) at require (internal/modules/cjs/helpers.js:77:18) at C:\Users\Lenovo\AppData\Roaming\npm\node_modules\firebase-tools\lib\triggerParser.js:15:15 at Object. (C:\Users\Lenovo\AppData\Roaming\npm\node_modules\firebase-tools\lib\triggerParser.js:53:3) at Module._compile (internal/modules/cjs/loader.js:1158:30)

Following is my code in index.js functions

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

exports.addAdminRole = functions.https.onCall((data,context) => {
    return admin.auth().getUserByEmail(data.email).then(user => {
        return admin.auth().setCustomUserClaims(user.uid,{
            admin: true
        });
    })
}).then(()=>{
    return {
        message: `Success! ${data.email} has been made an admin`
    }
}).catch(err => {
    return err;
})

Renaud Tarnec · Accepted Answer · 2020-03-23 10:17:06Z

0

You didn't chain the then() method correctly. You should do as follows:

exports.addAdminRole = functions.https.onCall((data, context) => {
    return admin.auth().getUserByEmail(data.email)
        .then(user => {
            return admin.auth().setCustomUserClaims(user.uid, {
                admin: true
            });
        })
        .then(() => {
            return {
                message: `Success! ${data.email} has been made an admin`
            }
        }).catch(err => {
            return err;
        })
})

Note that instead of doing

.catch(err => {
    return err;
})

you should follow the doc on how to handle errors in a Callable Cloud Function.

answered Mar 23, 2020 at 10:17

Renaud Tarnec

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