Make backend and frontend work together

backend/src/routes/api/auth/auth.dto.ts

@@ -0,0 +1,38 @@
+import {
+  IsBoolean,
+  IsNotEmpty,
+  IsOptional,
+  IsString,
+  ValidateNested,
+} from 'class-validator';
+import { User } from 'src/collections/userdb/user.dto';
+
+export class LoginResponseDto {
+  @IsString()
+  access_token: string;
+}
+
+export class RegisterRequestDto {
+  @IsString()
+  @IsNotEmpty()
+  username: string;
+
+  @IsString()
+  @IsNotEmpty()
+  password: string;
+
+  @IsBoolean()
+  @IsOptional()
+  isAdmin?: boolean;
+}
+
+export class DeleteRequestDto {
+  @IsString()
+  @IsNotEmpty()
+  username: string;
+}
+
+export class JwtDataDto {
+  @ValidateNested()
+  user: User;
+}