I'm new using the Firebase Cloud Message. I built an IOS app to receive push notifications. The app works fine. I send messages from the Firebase console and they're displayed correctly.
Now I`m trying to build an web api to allow my customer to send the push messages (without accessing the firebase console). Studying the documentation here I realized that I've always to have a "to", meaning a group, topic or device id.
My question is: can I send a message to all devices (like I can do in the console)? I yes, how so?
Thanks in advance!
You can make use of topics. Given that all of your users are subscribed to a specific one. Just like what I mentioned here (removed some parts, just check them out if you want):
If you are looking for a payload parameter to specify that you intend the message for all your users, unfortunately, it doesn't exist.
Commonly, when sending notifications to multiple users, you can make use of the registration_ids parameter instead of to. However, it only has a maximum of 1000 registration tokens allowed. If you intend to use this, you can make batch requests of 1000 registration tokens each, iterating over all the registration tokens you've stored in your app server.
However, do keep in mind that Diagnostics for messages sent to Topics are not supported.
I found this:
!('TopicA' in topics)
With this expression, any app instances that are not subscribed to
TopicA, including app instances that are not subscribed to any topic,
receive the message.
So you could probably use
condition="!('nonExistingTopic' in topics)"
Related
Is there any way to see number of successfully sent and failed push notifications in Firebase Cloud Messaging (FCM) ? I can see the messages sent using the Firebase console but I need to track the number of messages sent via the web app to the devices.
Google explains how to get access to statistics on android https://support.google.com/googleplay/android-developer/answer/2663268. But is there a similar way for iOS?
In one word yes, You can do it.
Firebase API have a message_id as a response parameter. It's indicate notification is deliver or not.
message_id: String specifying a unique ID for each successfully processed message.
Please find below attached screenshots.
Please do refer this reference.
Update:
You can not track user activity for notification in iOS application. If you want to
implement above functionality then call any custom API and store required data into your
database. You can not get any history directly.
I have a fully functioning application that uses Firebase as a backend. I want to be able to have a user receive a notification when a child is added to my Firebase database under that users ID.
I have looked everywhere but all I can find are links to OneSignal or people telling me to "make a custom server" as if it can be done by magic. How do I go about making a server? What language? What do I do with OneSignal? Can someone guide me step by step without telling me to simple make a custom server.
I believe Cloud Functions for Firebase is exactly what you're looking for. Specifically, Realtime Database Triggers:
The Realtime Database supports the onWrite() event, which triggers anytime data is created, destroyed, or changed in a specified database location.
In a typical lifecycle, a Firebase Realtime Database function does the following:
Waits for changes to a particular database location for write events.
Fires when a write event occurs and performs its tasks (see What can I do with Cloud Functions? for examples of use cases).
Receives an event data object that contains two snapshots of the data stored at the specified path: one with the original data prior to the change, and one with the new data.
And going through the What can I do with Cloud Functions?, theres Notifying users:
Notify users when something interesting happens
Developers can use Cloud Functions to keep users engaged and up to date with relevant information about an app. Consider, for example, an app that allows users to follow one another's activities in the app. In such an app, a function triggered by Realtime Database writes to store new followers could create Firebase Cloud Messaging (FCM) notifications to let the appropriate users know that they have gained new followers.
The function triggers on writes to the Realtime Database path where followers are stored.
The function composes a message to send via FCM.
FCM sends the notification message to the user's device.
To review working code, see Send FCM notifications.
Other interesting notification use cases
Send confirmation emails to users subscribing/unsubscribing to a newsletter.
Send a welcome email when a user completes signup.
Send an SMS confirmation when a user creates a new account.
I'm looking for some guidance.
I'm using Firebase as the backend server for an app I'm building and I would like to alert users when somebody has either liked or disliked some content the user generated.
I understand that Firebase offers cloud messaging through which I can target very specific users and send updates to them; I have implemented that functionality. However, I would like to send updates based on changes in the database, and, as far as I understand, FCM is not built for this purpose.
I have come across OneSignal and it seems promising. Has anybody implemented this with Firebase and could it do what I'm looking for?
Thanks!
I have it set upon such a way that when a message is send by a user to another user, a notification is also send via OneSignal. You just need to store the OneSignal userId in a node with the firebase user UID.
I you like someone's content, then that would also send a notification out directly to the other user.
I need an efficient way of sending payloads to my iOS app when a database change occurs.
Specifically, if a user's location is updated their client app will invoke a Lambda function that updates their location, stored in a DyanmoDB Table. When this occurs I need a way to then invoke some code and send a payload to other users, depending on some conditions. I think Lambda would be used for this but I'm not sure, does that sound correct? How would I go about implementing this in lambda.
To invoke some code when a DynamoDB table is updated you would use Lambda. I would look at this documentation, and possibly this blog post.
To send a payload to your iOS app, I believe you would want to configure an SNS topic to send Apple Push Notification messages. The documentation for this is here.
To add a message to the SNS topic via your Lambda function you would use standard AWS SDK code to create an SNS message.
I'm working on an iOS project. For this project I need an authentication system. However, if it's possible I don't want to use already built two-factor authentication systems such as Plivo or Sinch. I want to implement this feature of our application.
For this purpose, I need three things:
My application should get the phone number of the user and send it to server.
Server should send a sms to the number of user and my application should be able to read this message to get authentication code sent by server.
Application should be able to remove messages of this procedure from inbox and outbox of the iPhone used by user.
Now, i'm asking that can I implement this feature? I know this is a weird question but i've searched the Internet all day and could not get a certain answer. Thus I'll appreciate if someone informs me shortly.
Yes, you can that.
Your app can't read SMS messages received through the Messages app. The user would need read the message and note the code. Then switch back to your app where they could then type in the received code.
Your app can't access or modify any SMS messages received through the Messages app. The user would need to delete the message if they wanted to.