Tips for storing the device token received from Firebase Cloud Messaging in an Ionic2 application

Question

Tips for storing the device token received from Firebase Cloud Messaging in an Ionic2 application

Using the FCM plugin for ionic2, I was able to successfully implement push notifications. For reference, you can check out the plugin here.

I followed the steps outlined in this Github repository, and everything is working smoothly so far. Now, my next goal is to set up my own server to allow administrators to send push notifications from their backend.

The main issue I am facing currently is figuring out how to save the device token once it is retrieved. Below is the code snippet where I am trying to get the token:

initializeApp() {
    this.platform.ready().then(() => {
      // Platform ready
      StatusBar.styleDefault();

       FCMPlugin.getToken(
                function (token) {
                    console.log(token); 
                    alert(token);
                },
                function (err) {
                    console.log('error retrieving token: ' + err);
                }
            );

I have experimented with different methods like returning the value or storing it in a variable, but I am still struggling to access the token outside of the "FCMPlugin.getToken" function. Any help on this would be greatly appreciated. Thank you!

angular cordova typescript ionic2 ionic3

Answer 1

Answer №1

To implement arrow functions in your code, you can do the following:

initializeApp() {

    // ...

    FCMPlugin.getToken(
       (token) => { this.saveToken(token); },
       (err) => { this.showError(err); }
    );

    // ...

}

// ...

private saveToken(token: string): void {
    // Store the token in the storage...
}

private showError(error: any): void {
    // Display the error message to the user
}

By using arrow functions, you are making your code more concise and efficient.

Arrow function expressions have a shorter syntax compared to regular function expressions and do not bind their own this, arguments, super, or new.target.

This means that when you refer to this within an arrow function, it will still point to the component instance rather than the current function itself.

Answer 2

To implement arrow functions in your code, you can do the following:

initializeApp() {

    // ...

    FCMPlugin.getToken(
       (token) => { this.saveToken(token); },
       (err) => { this.showError(err); }
    );

    // ...

}

// ...

private saveToken(token: string): void {
    // Store the token in the storage...
}

private showError(error: any): void {
    // Display the error message to the user
}

By using arrow functions, you are making your code more concise and efficient.

Arrow function expressions have a shorter syntax compared to regular function expressions and do not bind their own this, arguments, super, or new.target.

This means that when you refer to this within an arrow function, it will still point to the component instance rather than the current function itself.

Answer 3

Answer №2

To implement push notifications in your app, you can utilize the following code snippet within your login() function:

this.push.register().then((t: PushToken) => {
  return this.push.saveToken(t);
}).then((t: PushToken) => {
  console.log('Device token saved:', t.token);
});

Once users have successfully logged into your app, their device token can be saved for future use.

Answer 4

To implement push notifications in your app, you can utilize the following code snippet within your login() function:

this.push.register().then((t: PushToken) => {
  return this.push.saveToken(t);
}).then((t: PushToken) => {
  console.log('Device token saved:', t.token);
});

Once users have successfully logged into your app, their device token can be saved for future use.

Tips for storing the device token received from Firebase Cloud Messaging in an Ionic2 application

Answer №1

Answer №2

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