Overview

This is a project for applying my first intern job at Dcard Taiwan Ltd. !!! Backend documentation link

Company Requirements

• One POST api for uploading url
• One GET api for redirecting to original url
• Use one of the relational databases: MySQL, PostgresSQL, SQLite
• Use one of the cache database: Redis, Memcached
• Reasonable error handling
• No need to consider auth
• Simultaneously user access handling
• Non-existent shorten URL access handling

Tech Stack

• Using Golang Gin framework to build api
• Using postgresSQL for relational database
• Using redis for caching database
• Deploy database and backend server on Google Kubernetes Engine
• Github Actions for CI / CD
• Implement semantic versioning with git

Features

• Deploy backend service on GKE 3-Nodes distributed systems
• Deploy databases on GKE 3-Nodes distributed systems
• Handling invalid access and simultaneously access by caching
• Automatically unit testing in CI/CD workflow using github action
• Improve CI/CD efficiency with pipeline workflow
• Automatically semantic versioning in CI/CD workflow base on git label
• DNS and proxy server configuration using cloudflare

Detail explanation

How do I design my backend system architecture ? How do I handle simultaneously access and non-existed-url access with cache ? Why do I choose Gin framework and how do I handle error in it? How do I integrate both versioning process and unit tests into CI/CD process ? How do I implement unit tests ?

Future TODO list

• Build frontend UI with next.js and ts
• Feature: Upload video and image
• Feature: User can set password for uploaded resource