• Passport is a library for authentication in Nodejs.
• Passport recognizes Strategy to validate a given information.
• After the successful authentication, Passport attaches the additional user information to the request.
• Passport-local is a strategy of Passport and it uses { username, password } to authenticate the users.
• By default, variable names must be same to be readable by PassportStrategy.
• If you want to modify the above fields, use the options { usernameField, passwordField }.

Database is needed to maintain the user information for authentication.

$ npm install --save @nestjs/passport passport passport-local
$ npm install --save-dev @types/passport-local

$ npm install --save @nestjs/jwt

$ npm install

# development
$ npm run start

# watch mode
$ npm run start:dev

# production mode
$ npm run start:prod

Follow below link after running to understand codes in Swagger playground.

http://localhost:9000/api

[1] Base Repository

[2] NestJS JWT Authentication

[3] NestJS 노트 (2) : Guards

[4] NestJS 노트 (3) : Authentication

[5] Nestjs 프로젝트에 Swagger 도입하기