I want to to send push notification manually to devices around a specific location. I don't want to send a notification every time the device enters the radius, just once.
Is there a way to do this?
There is nothing built into Firebase Cloud Messaging to send a message to devices that enter a specific area for the first time. That sort of specific requirement is up to you to build, on top of FCM and other APIs.
You'll need to have a background process that checks the user's location. Once you have that, you can send it to FCM. But also consider why you need FCM here in the first place, as you could also show a local notification in that case when the user first enters the area.
Related
Thanks to Firebase and FlutterFire, it's easy to send regular notifications from the servers to the users' devices. Those notifications include a title, a body, and an image url. But what about creating a no-that-simple notification, like Telegram's or WhatsApp's?
The simple question is to avoid sending a Notification from the server, and instead set the data field to the push message. But according to the FlutterFire documentation:
Data only messages are considered low priority by devices when your application is in the background or terminated, and will be ignored
So, it sounds like if we want to have a reliable delivery system, we should add a Notification to our push messages. But that notification is so simple. And, again, according to the documentation:
If your message is a notification one (includes a notification property), the Firebase SDKs will intercept this and display a visible notification to your users (assuming you have requested permission & the user has notifications enabled)
So: If I want a reliable system, I have to send Notifications, but I do it, I can't tell FlutterFire to use my custom notifications.
So the question is: how to show custom notifications with FlutterFire?
What I want to achieve is something like this:
I'm going to try setting the priority of the push notification.
You can however explicitly increase the priority by sending additional properties on the FCM payload:
On Android, set the priority field to high.
On Apple (iOS & macOS), set the content-available field to true.
On the server side code, it looks like:
message.setAndroidConfig(AndroidConfig.builder().setPriority(AndroidConfig.Priority.HIGH).build());
message.setApnsConfig(ApnsConfig.builder().setAps(Aps.builder().setContentAvailable(true).build()).build());
I am building an app contains chat but i couldn't figure out somethings.
Notifications: I can send notifications to devices but they appear everytime (app in on screen or not) but i want to send "chat" notification only the chat page not open. I think i need to send data notifications instead of normal notifications.
Storing chats: I can't pull all the chats eveytime user wants to see messages. I need to store them and show only the new messages. How can i seperate them? Device has to say i have messages until this timestamp give me newer ones.
I am using firebase and gifted chat. I can give you any version codes if you want.
In Urban Airship, when I am composing a notification, I can target specific users by searching for a Urban Airship channel_id (device ID):
I sent from Urban Airship the push notification that I am showing above, and I received it successfully. Now I want to do the same thing, send a push notification to a specific device, but now using the Firebase console. The problem is that in Firebase, in the step where I need to specify the target, it only allows me to choose User segment or topic. I was expecting to see a third option: Target specific users (for sending notifications to one or many specific GCM/FCM device token IDs. So my alternative is to add a GCM/FCM device token ID to a topic and then send the push notification to that topic, which is something that I have successfully done before. Nonetheless, that would be a workaround and not the way I would prefer to do this. Is it possible to send push notifications to specific users (by defining the target GCM/FCM device token IDs) from the Firebase console? Thank you.
UPDATE 1: See how the Firebase console (https://console.firebase.google.com/) only shows User segment and Topic as the Target:
First Step:
Second Step:
Third Step:
By design, the notification feature in the console is for sending out broadcast-type events. Sending user-specific alerts would be more of a programmatic operation done through the API.
For sending test messages, there is a console tool for this, explained here.
Note that it is possible to send a notification to one device by subscribing a device to any topic and sending the notification to that topic in the console (keep in mind topics are public and you can't prevent users from signing up to them; fine for testing most likely).
Another alternative is to send a message via HTTP or curl. Perhaps the best resource for this is the quickstart/messaging example.
I am writing back end for mobile app, we are sending pushes (something like one user add
another to buddies) he should accept it or decline via push notification(it is required), server got some feedback from notification, and do something.
I am familiar with two techniques about pushes, first I push directly on device using token, second is abstraction when user subscribes for channel and I send push notification on this channel. Id in my application is email, and I suggest to update device token in the database each time user login, and send push on it, but how should I identify device OS ?(IOS/Android)
1) How to scale it, if user have multiple devices, and when user will logout, and login from other device ?
May be there is common solutions for this problem.
I want to collect device attributes and send them to the mdm server using push notification.
Steps involved are:
create a configuration profile with mdm payload
get device token
use apple push notification service to send a notification to the device.
get back device attributes
do same with multiple devices which the company manages
Questions:
Will the user always need to act on a message or I can send a message onto the device without user action and get the work done?
Do I need an app on the device to send back the token?
It sounds like you're trying to use push notifications to poll iOS devices and return information.
Push notifications do not provide a mechanism to execute code on a device without user interaction. You would have to have an application loaded on the device, and the user would have to click through from the notification to your app.
In iOS, applications generally don't run unless the user is actively interacting with them. There are a few exceptions (e.g. background audio.)
You do need to have an app running to get the device token. You call registerForRemoteNotificationTypes. See APNs docs for more information.
Edited to add more information:
Looks like the MDM protocol uses push notifications to do just what you describe. However, there's nothing about it in Apple's "Local and Push Notification Programming Guide" (linked above).
Apparently Apple keeps tight control over the MDM documentation (see here and here).
However, I did find this paper from blackhat describing how the system works.
My earlier point about not executing arbitrary code on a device without user interaction still applies. There's a finite set of commands that can be executed (see Appendix A).
I came across this question when searching for iOS push notification access payload without user interaction - Just want to add that, in iOS 7 and above, it is possible to send silent push notifications to app, and app can process them without user interaction.
However, I've also found some discussions saying that the silent push notifications are not delivered reliably, in this SO post. That's why I'm still looking for alternate ways to retrieve payloads of the normal remote push notifications. Doesn't look like there's a way.