fcm-cloudflare-workers
v1.2.0
Published
Send multicast notifications through the FCM HTTP v1 API on Cloudflare Workers.
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fcm-cloudflare-workers
Send multicast notifications using the FCM HTTP v1 API. This project is a fork of fcm-http2 and has been modified to work with Cloudflare Workers.
Features supported by fcm-cloudflare-workers:
- [X] HTTP/2 session & stream concurrency
- [X] Token batching support
- [X] Uninstall detection
- [X] Retry mechanism
- [X] (Optional) Access token caching using KV
- [X] Zero dependencies
How to use?
First you need to install the library via npm:
npm i fcm-cloudflare-workers
Once the library has been installed you can start using it in this way:
import { FCM, FcmOptions, FcmMessage } from "fcm-cloudflare-workers";
// Init FCM with options (minimal example)
const fcmOptions = new FcmOptions(
// Pass in your service account JSON private key file (https://console.firebase.google.com/u/0/project/_/settings/serviceaccounts/adminsdk)
serviceAccount: JSON.parse(env.FIREBASE_SERVICE_ACCOUNT_JSON),
);
// Or, init FCM with access token caching using KV (optional but recommended for performance)
const fcmOptions = new FcmOptions(
serviceAccount: JSON.parse(env.FIREBASE_SERVICE_ACCOUNT_JSON),
// Specify a KV namespace
kvStore: env.MY_KV_NAMESPACE,
// Specify a key to use for caching the access token
kvCacheKey: 'fcm_access_token',
);
const fcmClient = new FCM(fcmOptions);
// Recipient device tokens
const tokens = ["TOKEN_1", "TOKEN_N"];
// Message to send
const message = {
notification: {
title: "Test",
body: "Hello from Cloudflare Workers",
},
data: {
notification: "true",
},
} satisfies FcmMessage;
try {
const unregisteredTokens = await fcmClient.sendMulticast(message, tokens);
// Sending successful
console.log("Message sent successfully");
// Remove unregistered tokens from your database
if (unregisteredTokens.length > 0) {
console.log(
"Unregistered device token(s): ",
unregisteredTokens.join(", ")
);
}
} catch (error) {
console.log("Sending failed", error.message);
}
Contributions
This repo is based on previous work by kenble and eladnava.
Support
Please open an issue on this repo if you have any questions or need support.