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115 lines
6.0 KiB
115 lines
6.0 KiB
ngrok [](https://travis-ci.org/bubenshchykov/ngrok)  [](https://www.npmjs.com/package/ngrok) [](https://www.npmjs.com/package/ngrok)
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=====
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usage
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===
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```javascript
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npm install ngrok
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const ngrok = require('ngrok');
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(async function() {
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const url = await ngrok.connect();
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})();
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```
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or
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```bash
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npm install ngrok -g
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ngrok http 8080
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```
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This module uses node>=8.3.0 with async-await. For callback-based version use [2.3.0](https://github.com/bubenshchykov/ngrok/blob/330674233e3ec77688bb692bf1eb007810c4e30d/README.md)
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For global install on Linux, you might need to run ```sudo npm install --unsafe-perm -g ngrok``` due to the [nature](https://github.com/bubenshchykov/ngrok/issues/115#issuecomment-380927124) of npm postinstall script.
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## authtoken
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You can create basic http-https-tcp tunnel without [authtoken](https://ngrok.com/docs#authtoken). For custom subdomains and more you should obtain authtoken by signing up at [ngrok.com](https://ngrok.com). Once you set it, it's stored in ngrok config and used for all tunnels. Few ways:
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```javascript
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await ngrok.authtoken(token);
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await ngrok.connect({authtoken: token, ...});
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```
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## connect
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```javascript
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const url = await ngrok.connect(); // https://757c1652.ngrok.io -> http://localhost:80
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const url = await ngrok.connect(9090); // https://757c1652.ngrok.io -> http://localhost:9090
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const url = await ngrok.connect({proto: 'tcp', addr: 22}); // tcp://0.tcp.ngrok.io:48590
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const url = await ngrok.connect(opts);
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```
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## options
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```javascript
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const url = await ngrok.connect({
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proto: 'http', // http|tcp|tls, defaults to http
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addr: 8080, // port or network address, defaults to 80
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auth: 'user:pwd', // http basic authentication for tunnel
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subdomain: 'alex', // reserved tunnel name https://alex.ngrok.io
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authtoken: '12345', // your authtoken from ngrok.com
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region: 'us', // one of ngrok regions (us, eu, au, ap), defaults to us
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configPath: '~/git/project/ngrok.yml', // custom path for ngrok config file
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binPath: default => default.replace('app.asar', 'app.asar.unpacked'), // custom binary path, eg for prod in electron
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onStatusChange: status => {}, // 'closed' - connection is lost, 'connected' - reconnected
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onLogEvent: data => {}, // returns stdout messages from ngrok process
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});
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```
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Other options: `name, inspect, host_header, bind_tls, hostname, crt, key, client_cas, remote_addr` - read [here](https://ngrok.com/docs)
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Note on regions: region used in first tunnel will be used for all next tunnels too.
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## disconnect
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The ngrok and all tunnels will be killed when node process is done. To stop the tunnels use
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```javascript
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await ngrok.disconnect(url); // stops one
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await ngrok.disconnect(); // stops all
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await ngrok.kill(); // kills ngrok process
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```
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Note on http tunnels: by default bind_tls is true, so whenever you use http proto two tunnels are created - http and https. If you disconnect https tunnel, http tunnel remains open. You might want to close them both by passing http-version url, or simply by disconnecting all in one go ```ngrok.disconnect()```.
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## configs
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You can use ngrok's [configurations files](https://ngrok.com/docs#config), and just pass `name` option when making a tunnel. Configuration files allow to store tunnel options. Ngrok looks for them here:
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```
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OS X /Users/example/.ngrok2/ngrok.yml
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Linux /home/example/.ngrok2/ngrok.yml
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Windows C:\Users\example\.ngrok2\ngrok.yml
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```
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You can specify a custom `configPath` when making a tunnel.
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## inspector
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When tunnel is established you can use the ngrok interface http://127.0.0.1:4040 to inspect the webhooks done via ngrok.
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Same url hosts internal [client api](https://ngrok.com/docs#client-api). You can get it as wrapped request and manage tunnels yourself.
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```javascript
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const url = await ngrok.connect();
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const api = ngrok.getApi();
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const tunnels = await api.get('api/tunnels');
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```
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You can also get it as string url
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```javascript
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const url = await ngrok.connect();
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const apiUrl = ngrok.getUrl();
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```
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## proxy
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- If you are behind a corporate proxy an have issues installing ngrok, you can set ```HTTP_PROXY``` or ```HTTPS_PROXY``` env var to fix it. Ngrok's posinstall uses request module to fetch the binary, [and request supports these env vars](https://github.com/request/request#controlling-proxy-behaviour-using-environment-variables)
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- If you are using a CA file, set the path in the environment variable `NGROK_ROOT_CA_PATH`. The path is needed for downloading the ngrok binary in the postinstall script.
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## how it works
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```npm install``` downloads ngrok binary for your platform from official ngrok hosting. To host binaries yourself set NGROK_CDN_URL env var before installing ngrok. To force specific platform set NGROK_ARCH, eg NGROK_ARCH=freebsdia32
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First time you create tunnel ngrok process is spawned and runs until you disconnect or when parent process killed. All further tunnels are created or stopped by using internal ngrok api which usually runs on http://127.0.0.1:4040
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## ngrok binary update
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If you would like to force an update of the ngrok binary directly from your software, you can require the `ngrok/download` module and call the `downloadNgrok` function directly:
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```javascript
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const downloadNgrok = require('ngrok/download');
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downloadNgrok(myCallbackFunc, { ignoreCache: true });
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```
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## contributors
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Please run ```git update-index --assume-unchanged bin/ngrok``` to not override [ngrok stub](https://github.com/bubenshchykov/ngrok/blob/master/bin/ngrok) in your pr. Unfortunately it can't be gitignored.
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Test suite covers basics usage without authtoken, as well as features available for free and paid authtokens. You can supply your own tokens into env vars, otherwise warning given and some specs are ignored (locally and in PR builds). Travis supplies real tokens to master branch and runs all specs always.
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