didip / shawty

Smallest URL shortener in Go

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Shawty: URL Shortener Service

This service encodes URL in base-36 and store them in filesystem.

It has 3 features: shorten, unshorten, and redirect.

Can I use it in production?

You need to implement a storage that can scale beyond one application server.

Why?

By itself, URL shortening is quite useful.

But this project exists to demonstrate:

  • How concise Go is. cloc shows that this project contains only 125 lines.

  • How slim Go is: 3MB RAM.

  • How comprehensive Go standard library is.

  • How easy it is to get up and running in Go. It took me about 1 hour from start to finish. Writing this README file took longer time.

  • How performant Go is:

    # Command  : ab -n 100000 -c 200 -k http://localhost:8080/dec/1
    # Processor: 2.26 GHz Intel Core 2 Duo  <-- Crummy 6 years old laptop
    
    Concurrency Level:      200
    Time taken for tests:   8.610 seconds
    Complete requests:      100000
    Failed requests:        0
    Non-2xx responses:      100000
    Keep-Alive requests:    100000
    Total transferred:      22400000 bytes
    HTML transferred:       7600000 bytes
    Requests per second:    11614.80 [#/sec] (mean)
    Time per request:       17.219 [ms] (mean)
    Time per request:       0.086 [ms] (mean, across all concurrent requests)
    Transfer rate:          2540.74 [Kbytes/sec] received
    

My other Go libraries

  • Tollbooth: Simple middleware to rate-limit HTTP requests.

  • Gomet: Simple HTTP client & server long poll library for Go. Useful for receiving live updates without needing Websocket.

  • Stopwatch: A small library to measure latency of things. Useful if you want to report latency data to Graphite.

  • LaborUnion: A dynamic worker pool library.

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Smallest URL shortener in Go

License:MIT License


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