refactor and update get url logic

src/UploadedFile/uploadedfile.schema.ts

@@ -39,7 +39,19 @@ export class UploadedFileSchema extends PothosSchema {
           nullable: false,
           description: 'The type of the file.',
         }),
-        fileUrl: t.exposeString('fileUrl'),
+        fileUrl: t.string({
+          description: 'The URL of the file.',
+          resolve: async (file, args, ctx) => {
+            const fileUrl = await this.minioService.getFileUrl(
+              file.fileName,
+              'files',
+            );
+            if (!fileUrl) {
+              throw new Error('Cannot retrieve file url');
+            }
+            return fileUrl;
+          },
+        }),
         uploadedAt: t.expose('uploadedAt', {
           type: 'DateTime',
           nullable: true,