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30 - May - 2023

Auth Service

Microservice Architecture...

  • npm init -y
  • yarn add -D typescript
  • yarn add -D @types/express
  • yarn add -D @types/cors
  • yarn add -D ts-node-dev
  • yarn add @types/bcrypt
  • yarn add @types/jsonwebtoken
  • yarn add @types/cookie-parser
  • yarn add express
  • yarn add cors
  • yarn add mongoose
  • yarn add dotenv
  • yarn add winston have "node module" incompatible issue
  • yarn add winston-daily-rotate-file
  • yarn add zod have "node module" incompatible issue
  • yarn add http-status
  • yarn add bcrypt
  • yarn add jsonwebtoken
  • yarn add cookie-parser

tsc --init

"scripts": {
    "start": "ts-node-dev --respawn --transpile-only src/connection"
}

yarn start

Project coding rules setup

Package Usage
Eslint Enforce rules
Prettier Code formatter
Eslint-Config-Prettier format conflict resolver
Husky Pre-commit hook - for check Eslint + Prettier rules
Lint-stage Only check staging file change for git commit
  • yarn add -D eslint
  • yarn add -D @typescript-eslint/parser
  • yarn add -D @typescript-eslint/eslint-plugin
  • yarn add -D @typescript-eslint/eslint-plugin
  • yarn add -D prettier
  • yarn add -D eslint-config-prettier
  • yarn add -D husky
  • yarn husky install
  • yarn add -D lint-staged have "node module" incompatible issue
nvm list

nvm install 18.16.0

nvm use 18.16.0 [run as administrator at cmd]


.eslintrc
.eslintignore
.prettierrc

"scripts": {
    "start": "ts-node-dev --respawn --transpile-only src/connection",
    "lint:check": "eslint --ignore-path .eslintignore --ext .js,.ts .",
    "lint:fix": "eslint . --fix",
    "prettier:check": "prettier --ignore-path .gitignore --write \"**/*.+(js|ts|json)\"",
    "prettier:fix": "prettier --write .",
    "lint-prettier": "yarn lint:check && yarn prettier:check"
},
"lint-staged": {
    "src/**/*.ts": "yarn lint-prettier"
},
yarn husky add .husky/pre-commit "yarn lint-staged"

Project Sections:-

  • user
    • student
    • admin
    • faculty
  • academy semester
  • academy department
  • academy faculty
  • user auth login
  • refresh token
  • role base resource access

Learning Context:-

  • File & Folder Structure...
  • Project Architecture...
  • Eslint Configuration
  • TypeScript Implementation...
  • User input verification by zod middleware
  • User role base resource access
  • Express Request type extend by index.d.ts
  • HOC - Higher Order Function for async(req, res)
  • by function call pick object property
  • global error handling...
  • Using of middleware concept
  • CRUD Operation