npm -g install @loopback/cli
//if you need, sudo or version3(npm install -g loopback-cli)lb4 app
? Project name: loopback-test
? Project description: loopback testing for my api server
? Project root directory: loopback-test
? Application class name: App
? Select features to enable in the project Enable eslint, Enable, prettier, Enable mocha, Enable loopbackBuild, Enable vscode, Enable docker, Enable repositories, Enable servicesMake controller It is one of API
lb4 controller
or just typing in ./src/controller
import { get } from '@loopback/rest';
export class TestController {
@get("/test")
hello() : string {
return "test"
}
}