OneSignal Setup

Onesignale.com

https://documentation.onesignal.com/docs/android-firebase-credentials

Android Setup

Step 1 - Create or Open your Firebase Project

Push Notifications require a Firebase Project. If you don't have one setup yet, click Add project and follow the directions to setup your project.

If you already have an FCM project, skip to Step 2.

Step 2 - Ensure Firebase Cloud Messaging API (V1) is Enabled:

If you've just created a new project, this should already be enabled by default and you can skip this step. However, if you are using an existing Firebase project, especially an older one, ensure Cloud Messaging API (V1) is enabled.

In your project, click the Gear icon next to "Project Overview" in the top left of the left-hand menu and select Project settings. Select the Cloud Messaging tab.

If Firebase Cloud Messaging API (V1) is disabled, then click the kebab menu icon on the top right corner and open the link.

On the subsequent page, click Enable. You may need to wait a few minutes for the action to propagate to Firebase systems.

Step 3 - Generate a Private Key JSON file:

Back in your Firebase Project Settings, go to the Service accounts tab.

Click Generate new private key at the bottom of the page.

You will see a warning window. Click Generate key.

Save the JSON file somewhere secure. You will need it shortly.

and click ( Generate new private key )

Step 4. Configure Your OneSignal App's Android Platform Settings :

In the OneSignal dashboard, select your app, then go to:

Settings > Platforms > Google Android (FCM) > Activate

Next to "Service Account JSON" select Choose file and upload the JSON file you downloaded from your Firebase project.

Click Save and Continue.

Select the SDK you are using for your app development and click Save & Continue.

Select Native Android

Done!

You are now connected to FCM with this OneSignal App and can send push notifications to your Android app. 🥳 Configure Your OneSignal App's Android Platform Settings

Update in Admin Panel only

iOS Setup

Generate an iOS Push Certificate

Step-by-step guide to create an iOS Push Certificate

An iOS Push Certificate is required for notification delivery to all iOS apps.

Step 1 - Requirements:

An iOS mobile app. (This is not for websites / web push)
A Paid Apple Developer Account with Admin Role.
A OneSignal Account, if you do not already have one.
A Mac computer with Xcode 11+
Your Xcode project should have the Push Notification capability added. Otherwise your project may not be shown in the Apple Developer Center.

Step 2 - Create a Certificate Request Manually:

2.1 - Request a Certificate From a Certificate Authority

Open the Keychain Access app on your macOS system. It may be located in Applications > Utilities > Keychain Access.

Select Keychain Access > Certificate Assistant > Request a Certificate From a Certificate Authority...

Next, select the Save to disk option and enter your information in the required fields.

This creates a certification request file that will be used later.

2.2 - Add Capabilities

Select Identifiers in your Apple Developer Account under Certificates, IDs & Profiles > Identifiers

Find and select your Identifier to enable Push Notifications, but do not click Edit.

If you do not see your Identifier, follow below Optional - Provisioning Profiles step.

2.3 - Select Push Notification Certificate

Next, go to Certificates and create a new certificate by clicking the blue + (plus) button.

Under Services, select Apple Push Notification service SSL (Sandbox & Production) and click Continue.

The certificate will be applicable to both Sandbox and Production environments, so you do not need a separate key for each one.

2.4 - Select your App

Choose your App ID with matching Bundle ID from the App ID pop-up menu, and click Continue.

2.5 - Upload your Certificate Signing Request

Click Choose File.., select the CertSigningRequest file you saved in Step 2.1, click Open, and then click Continue.

Click Download to save the certificate to your computer.

2.6 - Creating a Private Key

Open the .cer file you downloaded in the last step by double-clicking on it in Finder.

After a few seconds, the Keychain Access program should open. Select Login > My Certificates, then right-click on your Apple Push Services key in the list and select Export "Apple Push Services....

Give the file a unique name using the .p12 extension, and click Save. You will have an option to protect the file with a password. If you add a password, you need to enter this same password on OneSignal.

Step 3 - Upload Your Push Certificate to OneSignal

In the OneSignal dashboard, select your app from the All Apps page, then go to Settings. Under Native App Platforms, click Apple iOS.

Select the .p12 file you exported (along with a password, if you added one) and click Save.

Note: If you used the OneSignal Provisionator tool to create a .p12 file, a password was generated for you, and is located next to the Download button.