start with streamer

src/Streamer/Mime/mime.service.ts

@@ -0,0 +1,32 @@
+import { Injectable } from '@nestjs/common';
+import { extname } from 'path';
+
+@Injectable()
+export class MimeService {
+  private mimeNames = {
+    '.css': 'text/css',
+    '.html': 'text/html',
+    '.js': 'application/javascript',
+    '.mp3': 'audio/mpeg',
+    '.mp4': 'video/mp4',
+    '.ogg': 'application/ogg',
+    '.ogv': 'video/ogg',
+    '.oga': 'audio/ogg',
+    '.txt': 'text/plain',
+    '.wav': 'audio/x-wav',
+    '.webm': 'video/webm',
+    '.mkv': 'video/x-matroska',
+    '.m3u': 'application/vnd.apple.mpegurl',
+    '.ts': 'video/MP2T',
+    '.json': 'application/json',
+    '.avi': 'video/x-msvideo',
+  };
+
+  getMime(filePath: string): string {
+    return this.getMimeNameFromExt(extname(filePath));
+  }
+
+  private getMimeNameFromExt(ext): string {
+    return this.mimeNames[ext.toLowerCase()] ?? 'application/octet-stream';
+  }
+}