A Node.js package that allows you to easily create HTTPS tunnels using Cloudflare's cloudflared
command-line tool. It provides a typed API for creating tunnels and managing the cloudflared
binary installation.
This tool will automatically install the latest version of
cloudflared
(orCLOUDFLARED_VERSION
env var if exists) at the first time. Then, it just passes down the command tocloudflared
.
You can install this package using your favorite package manager:
pnpm i -g cloudflared
npm i -g cloudflared
yarn global add cloudflared
If
CLOUDFLARED_VERSION
env var is set, it will install the specified version ofcloudflared
, otherwise it will install the latest version.
You can use the cloudflared
command-line tool to create HTTPS tunnels. You can find the usage of cloudflared
here.
In addition to the standard cloudflared
commands, this package also provides an extra subcommand: cloudflared bin
. You can use it to manage the cloudflared
binary version.
❯ cloudflared bin --help
cloudflared bin : Prints the path to the binary
cloudflared bin remove : Removes the binary
cloudflared bin install [version] : Installs the binary
cloudflared bin list : Lists 30 latest releases
cloudflared bin help : Prints this help message
Examples:
cloudflared bin install : Installs the latest version of cloudflared
cloudflared bin install 2023.4.1 : Installs cloudflared 2023.4.1
You can find releases at https://github.com/cloudflare/cloudflared/releases
You can also use it as a library in your TypeScript / JavaScript projects.
You can get the path of the cloudflared
binary and install it using the bin
and install
functions, respectively.
import { bin, install } from "cloudflared";
import fs from "node:fs";
import { spawn } from "node:child_process";
if (!fs.existsSync(bin)) {
// install cloudflared binary
await install(bin);
}
// run cloudflared
spawn(bin, ["--version"], { stdio: "inherit" });
-
bin
: The path of the binary. -
install
: A function that installs the binary to the given path.
Checkout examples/tunnel.js
.
import { tunnel } from "cloudflared";
console.log("Cloudflared Tunnel Example.");
main();
async function main() {
// run: cloudflared tunnel --hello-world
const { url, connections, child, stop } = tunnel({ "--hello-world": null });
// show the url
console.log("LINK:", await url);
// wait for the all 4 connections to be established
const conns = await Promise.all(connections);
// show the connections
console.log("Connections Ready!", conns);
// stop the tunnel after 15 seconds
setTimeout(stop, 15_000);
child.on("exit", (code) => {
console.log("tunnel process exited with code", code);
});
}
❯ node examples/tunnel.js
Cloudflared Tunnel Example.
LINK: https://aimed-our-bite-brought.trycloudflare.com
Connections Ready! [
{
id: 'd4681cd9-217d-40e2-9e15-427f9fb77856',
ip: '198.41.200.23',
location: 'MIA'
},
{
id: 'b40d2cdd-0b99-4838-b1eb-9a58a6999123',
ip: '198.41.192.107',
location: 'LAX'
},
{
id: '55545211-3f63-4722-99f1-d5fea688dabf',
ip: '198.41.200.53',
location: 'MIA'
},
{
id: 'f3d5938a-d48c-463c-a4f7-a158782a0ddb',
ip: '198.41.192.77',
location: 'LAX'
}
]
tunnel process exited with code 0
Checkout examples/service.js
.
import { service } from "cloudflared";
console.log("Cloudflared Service Example.");
main();
async function main() {
if (service.exists()) {
console.log("Service is running.");
const current = service.current();
for (const { service, hostname } of current.config.ingress) {
console.log(` - ${service} -> ${hostname}`);
}
console.log("metrics server:", current.metrics);
} else {
console.log("Service is not running.");
}
}
❯ node examples/service.js
Cloudflared Service Example.
Service is running.
- http://localhost:12345 -> sub.example.com
- http_status:404 -> undefined
metrics server: 127.0.0.1:49177/metrics
NOTICE: On linux, service can only be installed and uninstalled by root.
Run service test on linux: sudo -E env "PATH=$PATH" pnpm test