Dart URL Shortener

A simple URL shortener written in dart.

Prerequisits

• Dart
• Docker

Getting Started

Activate dart_frog_cli

dart pub global activate dart_frog_cli

Run Docker Compose (for PG)

docker-compose up -d

SQL

Link table:

CREATE TABLE link (
    id SERIAL PRIMARY KEY,
    original_url TEXT NOT NULL,
    short_code VARCHAR(10) UNIQUE NOT NULL,
    user_identifier VARCHAR(64),
    created_at TIMESTAMP DEFAULT NOW()
);

Click table

CREATE TABLE click (
    id SERIAL PRIMARY KEY,
    link_id INT REFERENCES link(id),
    created_at TIMESTAMP DEFAULT NOW() NOT NULL,
    user_ip VARCHAR(15) NOT NULL
);

Running

dart_frog dev

API Endpoints

GET /api Returns the status {"online": "true"}

GET /link Returns all links in the database

GET /link?short_code=SHORT_CODE Returns a serialized link or a 404

POST /link Post Params: {'url':'URL_TO_SHORTEN'} Creates a new link and returns the serialized link

Depoying

You can follow the dart_frog docs to deploy.

For Heroku, follow these steps:

• Create Heroku app
• Add the Heroku Postgres addon
• Run:

heroku git:remote -a {{YOUR APP NAME}}
heroku stack:set container --app {{YOUR APP NAME}}
heroku config:set FALLBACK_URL={{YOUR FALLBACK URL}}
git add .
git commit -m"commit message"
git push heroku main