Add cache headers for images controller

Author: MrBartusek

apps/api/src/images/images.controller.ts

@@ -1,16 +1,21 @@
-import { Controller, Get, Param, Redirect, Res } from '@nestjs/common';
+import { Controller, Get, Header, Param, Redirect, Res } from '@nestjs/common';
 import { Response } from 'express';
 import { ImagesService } from './images.service';
 
+const ONE_DAY = 24 * 60 * 60;
+const CACHE_TIME = 30 * ONE_DAY;
+
 @Controller('images')
 export class ImagesController {
 	constructor(private readonly imagesService: ImagesService) {}
 
 	@Get('default')
+	@Header('Cache-Control', `public, max-age=${CACHE_TIME}`)
 	@Redirect('/public/default.png', 302)
 	getDefault() {}
 
 	@Get(':key')
+	@Header('Cache-Control', `public, max-age=${CACHE_TIME}`)
 	async getByKey(@Param('key') key: string, @Res() response: Response) {
 		const object = await this.imagesService.getObject(key);
 		object.pipe(response);