Forked from slp-dex

src/controllers/rest-api/users/index.js

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+/*
+  REST API library for /user route.
+*/
+
+// Public npm libraries.
+const Router = require('koa-router')
+
+// Local libraries.
+const UserRESTControllerLib = require('./controller')
+const Validators = require('../middleware/validators')
+
+let _this
+
+class UserRouter {
+  constructor (localConfig = {}) {
+    // Dependency Injection.
+    this.adapters = localConfig.adapters
+    if (!this.adapters) {
+      throw new Error(
+        'Instance of Adapters library required when instantiating PostEntry REST Controller.'
+      )
+    }
+    this.useCases = localConfig.useCases
+    if (!this.useCases) {
+      throw new Error(
+        'Instance of Use Cases library required when instantiating PostEntry REST Controller.'
+      )
+    }
+
+    const dependencies = {
+      adapters: this.adapters,
+      useCases: this.useCases
+    }
+
+    // Encapsulate dependencies.
+    this.userRESTController = new UserRESTControllerLib(dependencies)
+    this.validators = new Validators()
+
+    // Instantiate the router and set the base route.
+    const baseUrl = '/users'
+    this.router = new Router({ prefix: baseUrl })
+
+    _this = this
+  }
+
+  attach (app) {
+    if (!app) {
+      throw new Error(
+        'Must pass app object when attaching REST API controllers.'
+      )
+    }
+
+    // Define the routes and attach the controller.
+    this.router.post('/', this.userRESTController.createUser)
+    this.router.get('/', this.getAll)
+    this.router.get('/:id', this.getById)
+    this.router.put('/:id', this.updateUser)
+    this.router.delete('/:id', this.deleteUser)
+
+    // Attach the Controller routes to the Koa app.
+    app.use(this.router.routes())
+    app.use(this.router.allowedMethods())
+  }
+
+  async getAll (ctx, next) {
+    await _this.validators.ensureUser(ctx, next)
+    await _this.userRESTController.getUsers(ctx, next)
+  }
+
+  async getById (ctx, next) {
+    await _this.validators.ensureUser(ctx, next)
+    await _this.userRESTController.getUser(ctx, next)
+  }
+
+  async updateUser (ctx, next) {
+    await _this.validators.ensureTargetUserOrAdmin(ctx, next)
+    await _this.userRESTController.getUser(ctx, next)
+    await _this.userRESTController.updateUser(ctx, next)
+  }
+
+  async deleteUser (ctx, next) {
+    await _this.validators.ensureTargetUserOrAdmin(ctx, next)
+    await _this.userRESTController.getUser(ctx, next)
+    await _this.userRESTController.deleteUser(ctx, next)
+  }
+}
+
+module.exports = UserRouter