sending notification with firebase cloud messaging

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I'm trying to send notification to users with firebase cloud messaging when they are being sent friend request in my app using the below function which i deployed to my firebase functions

'use strict'



const functions = require('firebase-functions');

const admin = require('firebase-admin');

admin.initializeApp(functions.config().firebase);



exports.sendNotification = functions.database.ref('/Notifications/{user_id}/{notifications_id}').onWrite(event => {

	const user_id = event.params.user_id;

	const notifications = event.params.notifications;



	console.log('This User Id is :', user_id);

});

but when it trys to send the notification, i get the following error in my functions logs

 sendNotification

	



TypeError: Cannot read property 'user_id' of undefined

    at exports.sendNotification.functions.database.ref.onWrite.event (/user_code/index.js:8:30)

    at cloudFunctionNewSignature (/user_code/node_modules/firebase-functions/lib/cloud-functions.js:105:23)

    at cloudFunction (/user_code/node_modules/firebase-functions/lib/cloud-functions.js:135:20)

    at /var/tmp/worker/worker.js:758:24

    at process._tickDomainCallback (internal/process/next_tick.js:135:7)

asked Nov 22 at 17:03

Eric

235

check if the user_id is exist in event.params by adding line console.log(event.params)
– Banujan Balendrakumar
Nov 22 at 17:17

add a comment |

up vote
0
down vote

favorite

I'm trying to send notification to users with firebase cloud messaging when they are being sent friend request in my app using the below function which i deployed to my firebase functions

'use strict'



const functions = require('firebase-functions');

const admin = require('firebase-admin');

admin.initializeApp(functions.config().firebase);



exports.sendNotification = functions.database.ref('/Notifications/{user_id}/{notifications_id}').onWrite(event => {

	const user_id = event.params.user_id;

	const notifications = event.params.notifications;



	console.log('This User Id is :', user_id);

});

but when it trys to send the notification, i get the following error in my functions logs

 sendNotification

	



TypeError: Cannot read property 'user_id' of undefined

    at exports.sendNotification.functions.database.ref.onWrite.event (/user_code/index.js:8:30)

    at cloudFunctionNewSignature (/user_code/node_modules/firebase-functions/lib/cloud-functions.js:105:23)

    at cloudFunction (/user_code/node_modules/firebase-functions/lib/cloud-functions.js:135:20)

    at /var/tmp/worker/worker.js:758:24

    at process._tickDomainCallback (internal/process/next_tick.js:135:7)

asked Nov 22 at 17:03

Eric

235

check if the user_id is exist in event.params by adding line console.log(event.params)
– Banujan Balendrakumar
Nov 22 at 17:17

add a comment |

up vote
0
down vote

favorite

I'm trying to send notification to users with firebase cloud messaging when they are being sent friend request in my app using the below function which i deployed to my firebase functions

'use strict'



const functions = require('firebase-functions');

const admin = require('firebase-admin');

admin.initializeApp(functions.config().firebase);



exports.sendNotification = functions.database.ref('/Notifications/{user_id}/{notifications_id}').onWrite(event => {

	const user_id = event.params.user_id;

	const notifications = event.params.notifications;



	console.log('This User Id is :', user_id);

});

but when it trys to send the notification, i get the following error in my functions logs

 sendNotification

	



TypeError: Cannot read property 'user_id' of undefined

    at exports.sendNotification.functions.database.ref.onWrite.event (/user_code/index.js:8:30)

    at cloudFunctionNewSignature (/user_code/node_modules/firebase-functions/lib/cloud-functions.js:105:23)

    at cloudFunction (/user_code/node_modules/firebase-functions/lib/cloud-functions.js:135:20)

    at /var/tmp/worker/worker.js:758:24

    at process._tickDomainCallback (internal/process/next_tick.js:135:7)

asked Nov 22 at 17:03

Eric

235

I'm trying to send notification to users with firebase cloud messaging when they are being sent friend request in my app using the below function which i deployed to my firebase functions

'use strict'



const functions = require('firebase-functions');

const admin = require('firebase-admin');

admin.initializeApp(functions.config().firebase);



exports.sendNotification = functions.database.ref('/Notifications/{user_id}/{notifications_id}').onWrite(event => {

	const user_id = event.params.user_id;

	const notifications = event.params.notifications;



	console.log('This User Id is :', user_id);

});

but when it trys to send the notification, i get the following error in my functions logs

 sendNotification

	



TypeError: Cannot read property 'user_id' of undefined

    at exports.sendNotification.functions.database.ref.onWrite.event (/user_code/index.js:8:30)

    at cloudFunctionNewSignature (/user_code/node_modules/firebase-functions/lib/cloud-functions.js:105:23)

    at cloudFunction (/user_code/node_modules/firebase-functions/lib/cloud-functions.js:135:20)

    at /var/tmp/worker/worker.js:758:24

    at process._tickDomainCallback (internal/process/next_tick.js:135:7)

'use strict'



const functions = require('firebase-functions');

const admin = require('firebase-admin');

admin.initializeApp(functions.config().firebase);



exports.sendNotification = functions.database.ref('/Notifications/{user_id}/{notifications_id}').onWrite(event => {

	const user_id = event.params.user_id;

	const notifications = event.params.notifications;



	console.log('This User Id is :', user_id);

});

'use strict'



const functions = require('firebase-functions');

const admin = require('firebase-admin');

admin.initializeApp(functions.config().firebase);



exports.sendNotification = functions.database.ref('/Notifications/{user_id}/{notifications_id}').onWrite(event => {

	const user_id = event.params.user_id;

	const notifications = event.params.notifications;



	console.log('This User Id is :', user_id);

});

 sendNotification

	



TypeError: Cannot read property 'user_id' of undefined

    at exports.sendNotification.functions.database.ref.onWrite.event (/user_code/index.js:8:30)

    at cloudFunctionNewSignature (/user_code/node_modules/firebase-functions/lib/cloud-functions.js:105:23)

    at cloudFunction (/user_code/node_modules/firebase-functions/lib/cloud-functions.js:135:20)

    at /var/tmp/worker/worker.js:758:24

    at process._tickDomainCallback (internal/process/next_tick.js:135:7)

 sendNotification

	



TypeError: Cannot read property 'user_id' of undefined

    at exports.sendNotification.functions.database.ref.onWrite.event (/user_code/index.js:8:30)

    at cloudFunctionNewSignature (/user_code/node_modules/firebase-functions/lib/cloud-functions.js:105:23)

    at cloudFunction (/user_code/node_modules/firebase-functions/lib/cloud-functions.js:135:20)

    at /var/tmp/worker/worker.js:758:24

    at process._tickDomainCallback (internal/process/next_tick.js:135:7)

javascript firebase firebase-cloud-messaging

asked Nov 22 at 17:03

Eric

235

asked Nov 22 at 17:03

Eric

235

asked Nov 22 at 17:03

Eric

235

asked Nov 22 at 17:03

Eric

235

asked Nov 22 at 17:03

Eric

235

check if the user_id is exist in event.params by adding line console.log(event.params)
– Banujan Balendrakumar
Nov 22 at 17:17

add a comment |

check if the user_id is exist in event.params by adding line console.log(event.params)
– Banujan Balendrakumar
Nov 22 at 17:17

check if the user_id is exist in event.params by adding line console.log(event.params)
– Banujan Balendrakumar
Nov 22 at 17:17

add a comment |

1 Answer
1

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up vote
0
down vote

you have to add context and get the parameter from there. Try:

            ..'use strict'



            const functions = require('firebase-functions');

            const admin = require('firebase-admin');

            admin.initializeApp(functions.config().firebase);



            exports.sendNotification = functions.database

              .ref('/Notifications/{user_id}/{notifications_id}')

              .onWrite((event, context) => {



                   const user_id = context.params.user_id;

                   const notifications = context.params.notifications;



                  console.log('This User Id is :', user_id);

            });

answered Nov 22 at 17:29

Paolo

245

add a comment |

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1 Answer
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active

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1 Answer
1

active

oldest

votes

up vote
0
down vote

you have to add context and get the parameter from there. Try:

            ..'use strict'



            const functions = require('firebase-functions');

            const admin = require('firebase-admin');

            admin.initializeApp(functions.config().firebase);



            exports.sendNotification = functions.database

              .ref('/Notifications/{user_id}/{notifications_id}')

              .onWrite((event, context) => {



                   const user_id = context.params.user_id;

                   const notifications = context.params.notifications;



                  console.log('This User Id is :', user_id);

            });

answered Nov 22 at 17:29

Paolo

245

add a comment |

up vote
0
down vote

you have to add context and get the parameter from there. Try:

            ..'use strict'



            const functions = require('firebase-functions');

            const admin = require('firebase-admin');

            admin.initializeApp(functions.config().firebase);



            exports.sendNotification = functions.database

              .ref('/Notifications/{user_id}/{notifications_id}')

              .onWrite((event, context) => {



                   const user_id = context.params.user_id;

                   const notifications = context.params.notifications;



                  console.log('This User Id is :', user_id);

            });

answered Nov 22 at 17:29

Paolo

245

add a comment |

up vote
0
down vote

you have to add context and get the parameter from there. Try:

            ..'use strict'



            const functions = require('firebase-functions');

            const admin = require('firebase-admin');

            admin.initializeApp(functions.config().firebase);



            exports.sendNotification = functions.database

              .ref('/Notifications/{user_id}/{notifications_id}')

              .onWrite((event, context) => {



                   const user_id = context.params.user_id;

                   const notifications = context.params.notifications;



                  console.log('This User Id is :', user_id);

            });

answered Nov 22 at 17:29

Paolo

245

you have to add context and get the parameter from there. Try:

            ..'use strict'



            const functions = require('firebase-functions');

            const admin = require('firebase-admin');

            admin.initializeApp(functions.config().firebase);



            exports.sendNotification = functions.database

              .ref('/Notifications/{user_id}/{notifications_id}')

              .onWrite((event, context) => {



                   const user_id = context.params.user_id;

                   const notifications = context.params.notifications;



                  console.log('This User Id is :', user_id);

            });

answered Nov 22 at 17:29

Paolo

245

answered Nov 22 at 17:29

Paolo

245

answered Nov 22 at 17:29

Paolo

245

answered Nov 22 at 17:29

Paolo

245

add a comment |

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