A Web Push library for Java.

For Gradle, add the following dependency to build.gradle:

compile group: 'nl.martijndwars', name: 'web-push', version: '1.0.0'

For Maven, add the following dependency to pom.xml:

<dependency>
    <groupId>nl.martijndwars</groupId>
    <artifactId>web-push</artifactId>
    <version>1.0.0</version>
</dependency>

The server should have stored a subscription containing the userPublicKey and userAuth keys. Use these keys to create a Notification or GcmNotification, depending on whether the subscription is for Google Cloud Messaging.

// Create a notification with the endpoint, userPublicKey from the subscription and a custom payload
Notification notification = new Notification(endpoint, userPublicKey, userAuth, payload, ttl);

// Or create a GcmNotification, in case of Google Cloud Messaging
Notification notification = new GcmNotification(endpointi, userPublicKey, userAuth, payload);

// Instantiate the push service with a GCM API key
PushService pushService = new PushService("gcm-api-key");

// Send the notification
pushService.send(notification);

To give credit where credit is due, the PushService is mostly a Java port of marco-c/web-push. The HttpEce class is mostly a Java port of martinthomson/encrypted-content-encoding.

• For PHP, see Minishlink/web-push
• For nodejs, see marco-c/web-push and GoogleChrome/push-encryption-node
• For python, see mozilla-services/pywebpush