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

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

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

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