Created signup form

src/controller/auth.ts

@@ -11,10 +11,10 @@ import { AuthService } from '../services/auth';
 import { AuthGuard } from '@nestjs/passport';
 import { Public } from '../authguards';
 import {
-	BaseResponse,
 	ErrorResponse,
 	LoginResponse,
-	RefreshResponse
+	RefreshResponse,
+	SignupResponse
 } from 'dto';
 
 @Controller('api/auth')
@@ -37,7 +37,7 @@ export default class AuthController {
 	async signup(
 		@Body('username') username,
 		@Body('password') password
-	): Promise<BaseResponse | ErrorResponse> {
+	): Promise<SignupResponse | ErrorResponse> {
 		if ((await this.authService.findUser(username)) != null)
 			throw new BadRequestException('Username already taken');
 		await this.authService.signup(username, password);

src/services/auth.ts

@@ -1,4 +1,8 @@
-import { Injectable, UnauthorizedException } from '@nestjs/common';
+import {
+	BadRequestException,
+	Injectable,
+	UnauthorizedException
+} from '@nestjs/common';
 import { InjectRepository } from '@nestjs/typeorm';
 import { JWTToken, User, UserRole } from '../entities';
 import { Repository, LessThanOrEqual } from 'typeorm';
@@ -81,6 +85,8 @@ export class AuthService {
 	}
 
 	async signup(username: string, password: string) {
+		if (await this.findUser(username))
+			throw new BadRequestException('User already exists');
 		const user = new User();
 		user.name = username;
 		user.password = await argon2.hash(password);