API starting point

src/App/Upload/upload.controller.ts

@@ -1,17 +1,26 @@
-import { Controller, Post, UploadedFile, UseInterceptors, Res } from '@nestjs/common';
-import { FileInterceptor } from '@nestjs/platform-express';
+import {
+  Controller,
+  Post,
+  UploadedFile,
+  UseInterceptors,
+  Res,
+} from '@nestjs/common'
+import { FileInterceptor } from '@nestjs/platform-express'
 // import { Multer } from 'multer';
-import { Response } from 'express';
+import { Response } from 'express'
 
 @Controller('file')
 export class UploadController {
   @Post('upload')
-  @UseInterceptors(FileInterceptor('file'))
-  async uploadFile(@UploadedFile() file: Express.Multer.File, @Res() res: Response) {
-    console.log(file);
-
-    res.json({ message: 'File uploaded successfully' });
+  @UseInterceptors(FileInterceptor('file', { dest: './uploads'}))
+  async uploadFile(
+    @UploadedFile() file: Express.Multer.File,
+    @Res() res: Response,
+  ) {
+    console.log(file)
+
+    res.json({ message: 'File uploaded successfully' })
   }
 }
 
-export default UploadController;
+export default UploadController

src/App/Upload/upload.resolver.ts

@@ -1,15 +1,17 @@
-import { Resolver, Mutation, Args } from '@nestjs/graphql';
-import { GraphQLUpload } from 'graphql-upload';
-import UploadService from './upload.service';
+import { Resolver, Mutation, Args } from '@nestjs/graphql'
+import { GraphQLUpload } from 'graphql-upload'
+import UploadService from './upload.service'
 
 @Resolver()
 export default class UploadResolver {
   constructor(private readonly uploadService: UploadService) {}
 
   @Mutation(() => String)
-  async uploadFile(@Args({ name: 'file', type: () => GraphQLUpload }) file: any): Promise<string> {
-    const result = await this.uploadService.processFile(file);
+  async uploadFile(
+    @Args({ name: 'file', type: () => GraphQLUpload }) file: any,
+  ): Promise<string> {
+    const result = await this.uploadService.processFile(file)
 
-    return result;
+    return result
   }
 }

src/App/Upload/upload.service.ts

@@ -1,24 +1,24 @@
-import { Injectable } from '@nestjs/common';
-import * as fs from 'fs';
-import path from 'path';
+import { Injectable } from '@nestjs/common'
+import * as fs from 'fs'
+import path from 'path'
 
 @Injectable()
 export default class UploadService {
   async processFile(file: Express.Multer.File): Promise<string> {
     try {
-      const uploadDirectory = path.join(__dirname, 'Upload');
+      const uploadDirectory = path.join(__dirname, 'Upload')
       if (!fs.existsSync(uploadDirectory)) {
-        fs.mkdirSync(uploadDirectory);
+        fs.mkdirSync(uploadDirectory)
       }
-      const filename = `${Date.now()}_${file.originalname}`;
+      const filename = `${Date.now()}_${file.originalname}`
 
-      const filePath = path.join(uploadDirectory, filename);
-      fs.writeFileSync(filePath, file.buffer);
+      const filePath = path.join(uploadDirectory, filename)
+      fs.writeFileSync(filePath, file.buffer)
 
-      return 'File has been saved successfully';
+      return 'File has been saved successfully'
     } catch (error) {
-      console.error('Error:', error);
-      throw new Error('Failed to save the file');
+      console.error('Error:', error)
+      throw new Error('Failed to save the file')
     }
   }
-}
+}