Townkrier Expo Push Notifications

Expo Push Notifications adapter for the Townkrier notification system.

Installation

npm install townkrier-expo expo-server-sdk
# or
pnpm add townkrier-expo expo-server-sdk
# or
yarn add townkrier-expo expo-server-sdk

Usage

import { ExpoChannel } from 'townkrier-expo';
import { SendPushRequest } from 'townkrier-core';

// Create an Expo channel
const expoChannel = new ExpoChannel({
  enabled: true,
  accessToken: 'your-expo-access-token', // Optional
});

// Send a push notification
const request: SendPushRequest = {
  to: {
    deviceToken: 'ExponentPushToken[xxxxxxxxxxxxxxxxxxxxxx]',
  },
  title: 'Hello!',
  message: 'This is a push notification from Townkrier',
  data: {
    customData: 'value',
  },
  priority: 'high',
};

const response = await expoChannel.sendPush(request);
console.log('Notification sent:', response);

Configuration

The ExpoConfig interface extends NotificationChannelConfig and accepts:

• accessToken (optional): Expo access token for additional features
• enabled: Whether the channel is enabled
• maxRetries (optional): Maximum number of retries for failed requests
• retryDelay (optional): Delay between retries in milliseconds

Features

• ✅ Send push notifications to Expo apps
• ✅ Send to single or multiple devices
• ✅ Support for Android and iOS specific options
• ✅ Sound, badge, and priority configuration
• ✅ Custom data payloads
• ✅ Batch sending with automatic chunking
• ✅ Receipt validation

Requirements

• Expo SDK 48+ in your React Native app
• Valid Expo push tokens from devices

Learn More

• Expo Push Notifications Documentation
• Townkrier Documentation