URL Shortener

Using Fastapi, SQLModel, SQLite

May take a while to start the server (I am using free tier plan)

Overview

read/write ratio should be 100/1
should be able to scale-up
short url key length: 8

Shortener method?

1. random id or uuid

• collision may happen when scale up
• need to check frequently to prevent collisions -> bottleneck
• random is not secure (pseudo random)

2. hashing(md5, sha...)

• truncate by taking first n characters may cause collision

3. counter (token range)

-> bcrypt + base62 approach

Database

Setup and Installation

1. Clone the repository

   You can clone the repository by running the following command in your terminal:

   git clone https://github.com/patty111/url-shorten.git
   cd url-shorten

2. Install dependencies pip install poetry && poetry install --no-root

3. Run uvicorn main:app --port 8000 --reload or python3 main.py

navigate to /docs endpoint for API documentation demo vid: https://youtu.be/hdOzrbVS8iQ

Tests