Merge pull request #37 from kmi0817/be-feature/#31-storage

merge #37: Nest와 ObjectStorage 연동

BE/src/app.controller.ts

@@ -1,12 +1,29 @@
-import { Controller, Get } from '@nestjs/common';
+import {
+  Controller,
+  Get,
+  Post,
+  UploadedFile,
+  UseInterceptors,
+} from '@nestjs/common';
 import { AppService } from './app.service';
+import { StorageService } from './storage/storage.service';
+import { FileInterceptor } from '@nestjs/platform-express';
 
 @Controller()
 export class AppController {
-  constructor(private readonly appService: AppService) {}
+  constructor(
+    private readonly appService: AppService,
+    private readonly storageService: StorageService
+  ) {}
 
   @Get()
   getHello(): string {
     return this.appService.getHello();
   }
+
+  @Post('/upload')
+  @UseInterceptors(FileInterceptor('file'))
+  async upload(@UploadedFile() file: Express.Multer.File) {
+    return this.storageService.upload(file);
+  }
 }

BE/src/app.module.ts

@@ -7,13 +7,15 @@ import { TimelinesModule } from './timelines/timelines.module';
 import { AuthModule } from './auth/auth.module';
 import { ConfigModule, ConfigService } from '@nestjs/config';
 import { DatabaseModule } from './database/database.module';
+import { StorageModule } from './storage/storage.module';
 
 @Module({
   imports: [
     ConfigModule.forRoot({
       envFilePath: `.env`,
       isGlobal: true,
     }),
+    StorageModule,
     UsersModule,
     PostingsModule,
     TimelinesModule,

BE/src/storage/storage.module.ts

@@ -0,0 +1,8 @@
+import { Module } from '@nestjs/common';
+import { StorageService } from './storage.service';
+
+@Module({
+  providers: [StorageService],
+  exports: [StorageService],
+})
+export class StorageModule {}

BE/src/storage/storage.service.ts

@@ -0,0 +1,37 @@
+import { Injectable } from '@nestjs/common';
+import { v4 as uuidv4 } from 'uuid';
+import * as AWS from 'aws-sdk';
+
+@Injectable()
+export class StorageService {
+  private readonly s3: AWS.S3 = new AWS.S3({
+    endpoint: 'https://kr.object.ncloudstorage.com',
+    region: process.env.AWS_REGION,
+    credentials: {
+      accessKeyId: process.env.AWS_ACCESS_KEY_ID,
+      secretAccessKey: process.env.AWS_SECRET_ACCESS_KEY,
+    },
+  });
+  private readonly bucketName = 'traveline';
+
+  private generateFilename(originalname: string) {
+    const extension = originalname.split('.').pop();
+    const uniqueId = uuidv4();
+    return `${uniqueId}.${extension}`;
+  }
+
+  async upload(file: Express.Multer.File) {
+    const uploadParams = {
+      Bucket: this.bucketName,
+      Key: this.generateFilename(file.originalname),
+      Body: file.buffer,
+      ACL: 'public-read',
+    };
+
+    const result = await this.s3.upload(uploadParams).promise();
+
+    return {
+      imageUrl: result.Location,
+    };
+  }
+}