Installation & Configuration
Install the OneSignal TypeScript SDK and configure it for your application.Send messages
Send push, email, and SMS messages to your users via the OneSignal API. For more details on how to configure messages, see the Sending messages with the OneSignal API guide.Send push notifications
Send push notifications to web and mobile Subscriptions.Send email
Send emails to your email Subscriptions.Send SMS
Send SMS “text” messages to SMS Subscriptions.To find out about the other Server SDK endpoints, please check the complete API reference.