url shortener

An url shortener server realized by golang and redis. Followed the guide from Let's build a URL shortener in Go - Part I. Besides, I added extra feature for deployment, a docker file and docker-compose for quick start in any environment.

Built with

Quick Start

1. build go server's image

docker build -t go-url-server .

2. run service on

docker-compose up

3. shorten your url

curl -X POST {your-host}/url -d '{"long_url": "https:google.com"}'
# expected output
# {your-host}/Lhr4BWAi

4. check if server redirect {your-host}/Lhr4BWAi to https://google.com

How It Works

Convert original URL to another shorter identical string

• Hash Original URL With Sha256
• Encode the Hashed Result With Base58
  • This server encoded URL with base58 for improving user experience. It avoided tje usage of the following confusing characters: "O", "0", "I", "l", "+" and "/".

Redirect the generated shorter url to the original one

• When user hit the host IP with shortened url, server would lookup the original url in redis and redirect the user to original url.

Roadmap

• Add go server Dockerfile
• Add docker-compose
• Check if generated duplicated URL