https://github.com/lebinh/cloudflare-workers

My collection of Cloudflare Workers scripts: https://developers.cloudflare.com/workers/
https://github.com/lebinh/cloudflare-workers

Last synced: 3 months ago
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My collection of Cloudflare Workers scripts: https://developers.cloudflare.com/workers/

• Host: GitHub
• URL: https://github.com/lebinh/cloudflare-workers
• Owner: lebinh
• Created: 2018-02-06T05:20:33.000Z (almost 7 years ago)
• Default Branch: master
• Last Pushed: 2018-07-27T01:39:28.000Z (over 6 years ago)
• Last Synced: 2024-05-17T22:37:48.279Z (6 months ago)
• Language: TypeScript
• Size: 21.5 KB
• Stars: 85
• Watchers: 6
• Forks: 14
• Open Issues: 1
• Metadata Files:
  • Readme: README.md

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README

        
## Cloudflare Workers

[Cloudflare Workers](https://developers.cloudflare.com/workers/about/) scripts are Javascript programs

that can be run on Cloudflare's edge server, all [120 of them](https://www.cloudflare.com/network/).

They are modeled based on [Service Workers API](https://developer.mozilla.org/en-US/docs/Web/API/Service_Worker_API)

and is currently in open beta.

## Workers Zoo

This repo is just a collection of my workers when playing with it Cloudflare Workers:

* [http_prober](src/http_prober.ts) - An implementation of Prometheus's blackbox-exporter HTTP probe.

    ```

    $ curl 'thisisbinh.me/worker/http_prober?module=http_get_2xx&target=http://example.com/'

    probe_success 0

    probe_duration_seconds 0.694

    probe_http_status_code 200

    probe_http_redirected 1

    probe_http_content_length -1

    ```

This potentially can be used to monitor availability / performance of your origin server from Cloudflare point of view.  

* [proxy](src/proxy.ts) - Using worker as a HTTP proxy for other websites, e.g. https://thisisbinh.me/worker/proxy/github.com/lebinh

* [echo](src/echo.ts) - Debugging / testing script that just echo back the request/response from worker point of view.

    ```

    $ curl thisisbinh.me/worker/echo/request/headers

    accept: */*

    accept-encoding: gzip

    cf-connecting-ip: 139.59.112.58

    cf-force-miss-ts: 0

    cf-ipcountry: IN

    cf-ray: 3e94c829a18d17b0

    cf-visitor: {"scheme":"http"}

    connection: Keep-Alive

    host: thisisbinh.me

    user-agent: curl/7.52.1

    x-forwarded-proto: http

    x-real-ip: 139.59.112.58

    ```

## Playing with it

You will need TypeScript compiler to compile the sources. You can install it and other dependencies with

```

npm install

```

To build the Workers Javascript files from TypeScript sources:

```

$ make

```

To run test:

```

$ make test

```

To deploy **all** scripts to your Cloudflare account:

```

$ export CF_AUTH_EMAIL=your@email

$ export CF_AUTH_KEY=your_cloudflare_api_key

$ make deploy

```