I did create a GCM account for my app to receive push notifications, now there is a new update which is mandatory for the users to download otherwise they will loos a lot of app functionalities due to server side issues.
So, when trying to send the users a notification to inform them about how important this update is, I couldn't find any way to send notifications in Google console like in Firebase console if I'm using FCM:
and upon searching, I found some tools like pushWatch, but there is no tool that can handle this huge amount of device ids, also it whole fails if there is at least one single device is already updated and can't receive it.
p.s. the update contains a new server APIkey.
There is currently no option to send messages to all your users using the FCM REST API without specifying a target (registration tokens). The option to send a message to all users is only available through the Firebase Notifications Console.
So from the comments, if all you need is a way to send messages without an App Server, you could simply send a request using Postman or cURL.
Related
Is there a way to send a message to an entire application instead of a list of devices / topic outside the Firebase console?
Inside the console you can accomplish this like so:
But if I'm using their API, I can't find a way to send the message to the app.
I have found a workaround (subscribing every app to the same topic) that works perfectly, but I would prefer the app option.
Once you subscribe users of your app to a topic, every user gets the message sent to that topic.
You can't send message to the entire users of your app with API without a topic. It only works in Firebase Console. See this explanation: FCM (Firebase Cloud Messaging) how to send to all Phones?
I just switched my app over to firebase 2.0 from parse. Basically I have an android app (main app) built for the general public to use. Then I also built a second app (manager app) that only I and a few others have access to which is used to update the content of the main app. Now I am adding in notifications which work fine when I send them from the firebase console, however, is it possible to send them from the manager app to the main app? If not, what would I need to do in order to send them from somewhere other than the console (I don't want anyone else to have access to the console but would like them to be able to send notifications.) Thanks!
Seems like you are looking for device to device messaging. This is not currently supported by FCM, so you will need some type of server.
The server could implement XMPP in which case it can be a relay, upstream messages from admin client will be converted to downstream messages to non-admin clients.
The server could watch the Firebase Relatime Database and then the admin client could write something to the database and the server watching the database could then take action and send notifications to non-admin clients.
I have created a small App that's able to receive Push Notifications from the FCM Console.
What i want to do now is to send a Push-Notifications to all Android Phones that got the app Installed using the API. And this is where i got completely lost.
Is there no way to send it to all Phones without collecting all the registration-ids?
Does this only work with the Console but not with the API?
thanx in advance
Sending a message to all the phones like what you do from the Firebase Web Console is only possible from the Web Console.
If you need this feature from the API you can submit a feature request:
https://firebase.google.com/support/contact/bugs-features/
Another possibility is to have all the client registering to a specific topic via FirebaseMessaging.getInstance().subscribeToTopic(topicName)
In this way you can send a message to the whole topic without collecting the registration-ids manually.
I would like to implement GCM in my Android app:
One Android app
Registered- U_user and another M_user.
I have Google Sign In in my app thats works fine with JSON and GSON and local MySQL database server with tomcat-server restutil to keep storing Gmail login users.
So, I want to send a notification from U_user to M_user.
U_user does a registration that has been pushed to M_user.
How can I do this?
I am assuming you mean the same Android app installed on different phones (U_user's phone and a separate phone for M_user).
To quote a section in the docs:
To make sure that messages go to the intended user:
Your app server can maintain a mapping between the current user and the registration ID.
The app can then check to ensure that messages it receives match the logged in user.
What this means is that you can send messages to another user through GCM. To let the app server know what to send to M_user, let U_user send an upstream message to your GCM app server (only possible in app servers using XMPP - see here). Alternatively, you have the option to do POST requests to your app server via HttpUrlConnection (can work on both XMPP- and HTTP-based GCM app servers).
Regardless of which method you use, specify in these messages to the server that you would like to send a message to M_user.
Can anyone help me with a way to send requests as a notification through my android app to all the users who have installed my application and then their responses are sent back to the user who sent the request.
I have read about GCM but I dont understand how can I register all the users to get their GCM registration ID and how can i simulataneously send a notification to all users..I may sound naive but I am completely new to this GCM concept and I dont think that it is the exact thing what I am looking for..
So,somebody please tell me how to send notifications(simultaneously on click of a button or something..) to all the users who have registered in my android app .
You will need to build a server component that keeps track of all registered users. This component will be an app that you write and expose in the cloud. There are many app-hosting services to choose from. Amazon EC2 is one example.
So the app flow would be something like this:
User launches your Android app.
Android app registers itself with GMC. GCM will respond with a token that represents that device.
Android app POSTs that device token to your cloud application.
Cloud application saves that token. The app should now have a list of tokens that represents all active devices running your app. (of course you may want to have an expiration policy - i.e. remove all tokens corresponding to devices you have not heard from in say 30 days).
One of your app users posts a message that s/he wants to broadcast.
Your Android app responds by sending a request to your cloud application.
Your cloud application responds to this request, by making a request to GCM. In this request (or series of requests), the app will include all device tokens and the user-entered message.
GCM responds by pushing the message to all devices with your app (i.e. all of those that have register with GCM and received a token - see step 2).
If using GCM alone you would need to write a server component. I get the impression you don't want to do this. You could use Urban Airship push messaging, which will allow you to send out a message to all registered apps from the Urban Airship web portal. Urban Airship integrates with GCM (which is easy to setup). You would still need to add code to your app to handle the push notification the app receives.
http://docs.urbanairship.com/build/android.html