I have configured push notifications on Parse-Server & in Android app. But I am not able receive push notifications in a website using Parse JS SDK. They don't provide any method to subscribe for push notifications in ther JS APIs. There Documentation (JS) only talks about subscribing to mobile devices not browsers.
SUBSCRIBING TO CHANNELS
The JavaScript SDK does not currently support subscribing iOS and Android devices for pushes. Take a look at the iOS, Android or REST Push guide using the platform toggle at the top.
So, I concluded that web browsers can't subscribe just by using Parse JS SDK? So, how should I subscribe & receive Push notifications on a web browser from Parse Backend?
Update:
I haven't test but If I use ServiceWorker to get subscription & subscribe user to some channel, can I use the default Parse Class Installation for saving subscription & then use that (web) Installation in Cloud Code to send Push?
Parse-Server only supports iOS and Android push notifications. It doesn't even handle web sessions conveniently. There are no Installations for web, because you don't install things for web. There are Sessions, but those don't do anything for Push.
I have tested it and got achieved desired results via following. As Jake said, for web there are no Installations in Parse. So, in order to receive push notifications on the web, you have to
Register a Service worker to get pushSubscription and hande push, click events etc.
Save pushSubscription to server. It will be used to send pushes to Web.
Integrate Push notifications on Parse-Server (FCM etc) or web-push if you want.
Send push via Client SDK or Cloud Code, it must be received.
Further, the Installation class cannot be used for web pushes.
Related
I am working on an app which can read device information via bluetooth BLE. So far I've been able to connect to the device and read certain properties like state of charge and firmware version number on iOS, Android, and within Chrome. However, now I'm at the point where I need to update the firmware and I am confused how to do so.
Little back story, the app is written in Ionic + Vue + Capacitor so everything is JavaScript/TypeScript. So the BLE plugin I'm using is the Capacitor Community Bluetooth LE. Within the documentation it has a write method which wants deviceId, service, characteristic, and value. I know what I need to use for the first 3, but value is suppose to be DataView. Somehow I need to take a binary bin file and transmit it via this write command. I noticed that DataView is an ArrayBuffer with byteLength and byteOffset. I don't really know how to get my file into this format.
Assuming I have deviceId, service, characteristic, how can I grab this file and transmit a DataView using this write method?
Thanks in advance.
The native SDKs offer a "Socked"-based communication directly over the L2CAP protocol. (GATT uses L2CAP internaly)
Android
Open a L2CAP Channel via BluetoothAdapter#listenUsingL2capChannel()
Connect to the L2CAP Channel via BluetoothDevice#createL2capChannel(int)
iOS
Open a L2CAP Channel via CBPeripheralManager#publishL2CAPChannel()
Connect to the L2CAP Channel via CBPeripheral#openL2CAPChannel(int)
When a L2CAP Channel is registered an PSM (the "Port") is allocated by the device. This number must be communicated to the other peers. This could be done by including the number in the BLE advertisement or by exposing it over a GATT Characteristic
I'm implementing a notifications feature in an html5 web app I'm working on.
The feature requirements is to receive push notifications (strings) from the server and display them immediately on the user interface (to all clients), without saving them anywhere else.
I'm looking for a managed service on Azure cloud that allows send/onMessage functionalities very similar to WebSockets, that can be accessed directly by the browser.
I've tried using event-hubs, but that solution requires a node.js/SignalR wrapper which I can't use for this specific feature.
Thanks in advance!
It sounds like you want to implement a real-time notification feature for HTML5 App without any middleware like WebApp in Node/SignalR to connect a message queue like EventHubs. However, there seems to be not any solution for the needs without any backend services as HTTP middleware for browser if using EventHubs or other services like PubSub in Redis.
Per my experience, a only available solution is that using pouchdb within browser to synchronize with CouchDb on Azure to implement a PubSub service as notification service.
There is a opensource project on GitHub which you can refer to, please move to https://github.com/MattCollins84/couch-pubsub.
Hope it helps. Any concern, please feel free to let me know.
Chrome M52 and beyond started supporting the VAPID protocol, refer to https://chromestatus.com/feature/5573539073622016.
It seems that Azure does not yet provide VAPID support. As an alternative you can look into Firebase Cloud Messaging (FCM) which you can connect with Azure Notification Hub.
More on Firebase Cloud Messaging and web push html client: https://firebase.google.com/docs/cloud-messaging/js/client
More on Azure Notification Hub and connecting it with FCM:
https://learn.microsoft.com/en-us/azure/notification-hubs/notification-hubs-android-push-notification-google-fcm-get-started
VAPID stands for: Voluntary Application server Identification for web Push. Refer to https://datatracker.ietf.org/doc/html/rfc8292
Iam trying to build a universal web application(producer) which uses my own interface and its build using Alljoyn Studio.
Now i want to add the notification service, to send the notification to the consumer which is a (android)application.
how do i implement the notification service/Control panel in UWP?
please provide me some suggestions.
For sending Notification to any android Device you can use two technology: 1) Push. 2) Pull.
For Push Technology you can use GCM(Google cloud messaging).
For Pull Technology you can make you application continuously keep on connecting to server and trying to fetch data if it is available from there.
Advantages of GCM:
1) Low battery comsumption. Since it will push the message to user device and it will push message when user gets connected to server.
For GCM you can use following Link for your reference:
http://developer.android.com/google/gcm/gs.html
https://developers.google.com/web/updates/2015/03/push-notifications-on-the-open-web?hl=en
http://www.techrepublic.com/blog/app-builder/implementing-googles-cloud-to-device-messaging/428
http://www.vogella.com/articles/AndroidCloudToDeviceMessaging/article.html
https://github.com/teleknEsis/TechRepublic-Samples/tree/master/C2DMSample
I'm trying to understand how to send notifications using the browser when my website is closed.
I see that Facebook does it but I can't get how.
Any help is welcome.
You are looking for the Push API:
The Push API gives web applications the ability to receive messages pushed to them from a server, whether or not the web app is in the foreground, or even currently loaded, on a user agent. This lets developers deliver asynchronous notifications and updates to users that opt in, resulting in better engagement with timely new content.
And the Notifications API:
The Notification interface of the Notifications API is used to configure and display desktop notifications to the user.
You must use these in combination with a Service Worker. From the Push API documentation:
For an app to receive push messages, it has to have an active service worker. When the service worker is active, it can subscribe to push notifications using PushManager.subscribe().
You can use Roost. Roost is a push notification platform for websites. You can see its documentation to perform both client-side and server-side integrations, so that you can customize your Roost notifications as needed.
Currently using build.phonegap.com and parse.com to enable push notifications across two platforms (Android and iOS).
Using the PhoneGap PushPlugin and parse.com REST API I'm able to register an Android device and send the details to parse successfully.
Although I have problems and questions regarding sending the "Pushes".
1.1) When registering an "installation" (https://parse.com/docs/rest#installations-uploading) I'm dynamically creating a random UUID installationId. Is this correct? Or does parse.com have to do this?
1.2) For Android I'm registering pushType for GCM, as I'm not using the Android SDK. Which leads me to question 2.
2) When I setup my Android app settings for push, I'm given a server API Key... parse.com has a keys section, but only for Windows and iOS... does this mean they can't send push using GCM for Android? Even though you can select this when uploading an installation?
The short question. Is it possible to use just the parse.com REST API to register Android devices to send push via GCM (Androids native push service)? Apple devices are working using this method to register them and send notifications.
To answer your short question: Is it possible to use just the parse.com REST API to register Android devices to send push via GCM (Androids native push service)?
Yes
I did not have to set installationId and I set pushType to "gcm".
In Parse settings, there is a section "GCM Push Credentials" where you enter "Sender ID" and "API Key". You get both of these from Google. When you create the Parse Installation, you also have to set GCMSenderId to the same thing as "Sender ID".
Note: I'm using the cordova push notification plugin and had to make some changes to PushPlugin.java to get background push notifications to work with the way Parse sends them. That's another topic though.
If this helps anyone - I moved over to using PushWoosh with a PhoneGap Build plugin - very simple and integrates in minutes. PushWoosh also has easy integration with Apple to setup and generate certificates (which is great when working on a PC).
https://build.phonegap.com/plugins/1297