Simple Short Link

a simple app to make links/urls shorter and return the short value to get the main url

Install and Configure DataBase with Docker

I used postgresql in this project.

steps

• Install Docker ^_^
• run this command docker pull postgres:latest to download the last version of postgres
• after that to have storage create volume docker volume create pg-volume
• then run the container with this command docker run -d --name=pgdb -p 5432:5432 -v pg-volume:/var/lib/postgresql/data -e POSTGRES_PASSWORD=123456 postgres
  • with --name set the name for your container here I set pgdb you can change it
  • with POSTGRES_PASSWORD you can set the password for your database is important I set 123456 ^_^ you should use a strong password not like me
• if you don't get any error so probably every thing correctly sets now you can use docker container ls or docker ps to see the container is run
• now you ready to add the sql below here to your database
• to add the sql below here first use this command docker exec -it pgdb psql -U postgres then paste the sql below here

create database shortlink;
create table urls
(
    id  serial
    constraint urls_pk
    primary key,
    url text,
    key char(8)
);

alter table urls
owner to postgres;

create unique index urls_key_uindex
on urls (key);

after all you should open/edit config/config.go file and set your database info correctly

How to use this app

for use this app we had three command after build the code or run the code as like :

# first 
# run an simple http server you can access to it with localhost:8080
go run cmd/main.go serv 
# in this part you can send request to localhost:8080/short?url=<your url>
# to get the main url with key send request to localhost:8080/url?key=<your key>

# second
# if you don't want use the http server just use the command line interface 
go run cmd/main.go short <your url> # to return the key
# Key : #######

go run cmd/main.go url <your key> # to return the main url based on key
# Url : #######

Libraries

Libraries that I used in this app

• Google UUID
• PostgresSQL Library
• Cobra CommandLine
• ZAP Logger