#36 get apps endpoint

apps/backend/src/app/app.module.ts

@@ -1,15 +1,16 @@
 import { Module } from '@nestjs/common';
 import { TypeOrmModule } from '@nestjs/typeorm';
 import { UserModule } from '../user/user.module'
 
 import { AppController } from './app.controller';
 import { AppService } from './app.service';
 import { SiteModule } from '../site/site.module';
+import { ApplicationsModule } from '../applications/applications.module';
 import { DynamoDbService } from '../dynamodb';
 
 
 @Module({
-  imports: [SiteModule,UserModule],
+  imports: [SiteModule,UserModule, ApplicationsModule],
   controllers: [AppController],
   providers: [AppService, DynamoDbService],
 })

apps/backend/src/applications/applications.controller.ts

@@ -0,0 +1,13 @@
+import { Controller, Get } from '@nestjs/common';
+import { ApplicationsService } from './applications.service';
+import { ApplicationsModel } from './applications.model';
+
+@Controller('applications')
+export class ApplicationsController {
+  constructor(private applicationsService: ApplicationsService) {}
+
+  @Get('applicationsInfo')
+  public async getApplications(): Promise<ApplicationsModel[]> {
+    return this.applicationsService.getApplications();
+  }
+}

apps/backend/src/applications/applications.model.ts

@@ -0,0 +1,19 @@
+/**
+ * Represents the model schema of an application
+ */
+
+export type ApplicationsModel = {
+  appId: number;
+  userId: number;
+  siteId: number;
+  names: Array<string>;
+  status: ApplicationStatus;
+  dateApplied: Date;
+  isFirstApplication: boolean;
+};
+
+export enum ApplicationStatus {
+  APPROVED = 'Approved',
+  PENDING = 'Pending',
+  REJECTED = 'Rejected',
+}

apps/backend/src/applications/applications.module.ts

@@ -0,0 +1,12 @@
+import { Module } from '@nestjs/common';
+import { ApplicationsService } from './applications.service';
+import { ApplicationsController } from './applications.controller';
+import { DynamoDbService } from '../dynamodb';
+
+@Module({
+  imports: [],
+  providers: [ApplicationsService, DynamoDbService],
+  controllers: [ApplicationsController],
+  exports: [ApplicationsService],
+})
+export class ApplicationsModule {}

apps/backend/src/applications/applications.service.ts

@@ -0,0 +1,38 @@
+import { Injectable } from '@nestjs/common';
+import { ApplicationsModel } from './applications.model';
+import { DynamoDbService } from '../dynamodb';
+import { ApplicationStatus } from './applications.model';
+
+@Injectable()
+export class ApplicationsService {
+  private readonly tableName = 'gibostonApplications';
+  constructor(private readonly dynamoDbService: DynamoDbService) {}
+
+  /**
+   * Gets all applications.
+   *
+   * @returns a list of all applications as ApplicationsModel objects.
+   */
+  public async getApplications(): Promise<ApplicationsModel[]> {
+    try {
+      const data = await this.dynamoDbService.scanTable(this.tableName);
+      return data.map(this.mapDynamoDBItemToApplication);
+    } catch (e) {
+      throw new Error('Unable to retrieve applications: ' + e);
+    }
+  }
+
+  private mapDynamoDBItemToApplication = (item: {
+    [key: string]: any;
+  }): ApplicationsModel => {
+    return {
+      appId: item['appId'].N,
+      dateApplied: new Date(item['dateApplied'].S),
+      isFirstApplication: item['isFirstApplication'].BOOL,
+      names: item['names'].SS,
+      siteId: item['siteId'].N,
+      status: item['status'].S as ApplicationStatus,
+      userId: item['userId'].N,
+    };
+  };
+}