Merge pull request #66 from Boost-Coder/feature/nicknameDup-#63

[#63] 닉네임 중복 체크

src/Entity/user.ts

@@ -26,6 +26,7 @@ export class User {
     @Column({
         length: 30,
         nullable: true,
+        unique: true,
     })
     nickname: string;
 

src/auth/auth.controller.ts

@@ -35,8 +35,16 @@ export class AuthController {
         return await this.authService.checkSejongStudent(body, userId);
     }
 
+
+    @Post('checkNickname')
+    @UseGuards(JwtAuthGuard)
+    public async checkNickname(@Body('nickname') nickname: string) {
+        return await this.authService.checkNicknameDuplicate(nickname);
+    }
+
     @Post('refresh')
     public refreshTokens(@Body('refreshToken') refreshToken: string) {
         return this.authService.sendTokens(refreshToken);
+
     }
 }

src/auth/auth.service.ts

@@ -1,4 +1,8 @@
-import { Injectable, UnauthorizedException } from '@nestjs/common';
+import {
+    ConflictException,
+    Injectable,
+    UnauthorizedException,
+} from '@nestjs/common';
 import { AppleLoginDto } from './appleLogin.dto';
 import * as jwt from 'jsonwebtoken';
 import * as jwksClient from 'jwks-rsa';
@@ -144,6 +148,17 @@ export class AuthService {
         }
     }
 
+
+    public async checkNicknameDuplicate(nickname: string) {
+        const isExist = await this.userService.checkNicknameDuplicate(nickname);
+
+        if (isExist) {
+            throw new ConflictException('중복되는 닉네임입니다');
+        } else {
+            return { isDuplicate: false };
+        }
+    }
+
     public sendTokens(refreshToken: string) {
         const payload = this.validateRefreshToken(refreshToken);
 

src/user/user.repository.ts

@@ -20,6 +20,10 @@ export class UserRepository extends BaseRepository {
         return await this.repository.findOneBy({ userId: userId });
     }
 
+    async findOneByNickname(nickname: string) {
+        return await this.repository.findOneBy({ nickname: nickname });
+    }
+
     async findOneWithStats(userId: string) {
         return await this.repository.findOne({
             where: { userId: userId },

src/user/user.service.ts

@@ -88,4 +88,8 @@ export class UserService {
         const uuid: string = uuidv4();
         return uuid.slice(0, 8);
     }
+
+    async checkNicknameDuplicate(nickname: string) {
+        return await this.userRepository.findOneByNickname(nickname);
+    }
 }