organized code

src/app/app.module.ts

@@ -9,12 +9,14 @@ import { AuthGuard } from '../auth/guard/auth/auth.guard';
 import { PrismaModule } from '../prisma/prisma.module';
 import { MailModule } from '../mail/mail.module';
 import { ProviderModule } from '../provider/provider.module';
+import { CommonModule } from '../common/common.module';
 
 @Module({
   imports: [
     ConfigModule.forRoot({
       isGlobal: true,
     }),
+    CommonModule,
     AuthModule,
     UserModule,
     OauthModule,

src/auth/controller/auth.controller.ts

@@ -32,6 +32,7 @@ import {
   ApiTags,
 } from '@nestjs/swagger';
 import { userProperties } from '../../schemas/user.properties';
+import { LowercasePipe } from 'src/common/pipes/lowercase.pipe';
 
 @Controller('auth')
 @ApiTags('Auth Controller')
@@ -195,7 +196,9 @@ export class AuthController {
     description: 'User not found',
   })
   @HttpCode(HttpStatus.NO_CONTENT)
-  async resendEmailVerificationCode(@Param('email') email: string) {
+  async resendEmailVerificationCode(
+    @Param('email', LowercasePipe) email: string,
+  ) {
     return await this.authService.resendEmailVerificationCode(email);
   }
 

src/auth/dto/email-verification.dto.ts

@@ -1,4 +1,5 @@
 import { ApiProperty } from '@nestjs/swagger';
+import { Transform } from 'class-transformer';
 import { IsEmail, Matches } from 'class-validator';
 
 export class EmailVerificationDto {
@@ -10,6 +11,7 @@ export class EmailVerificationDto {
     type: String,
     example: '[email protected]',
   })
+  @Transform(({ value }) => value.toLowerCase())
   email: string;
   @Matches(/^[0-9]{6}$/, {
     message: 'Code must be a 6 digit number',

src/auth/service/auth.service.ts

@@ -131,7 +131,6 @@ export class AuthService {
   }
 
   async resendEmailVerificationCode(email: string) {
-    email = email.toLowerCase();
     const user = await this.findUserByEmail(email);
     if (!user) {
       throw new NotFoundException('User not found');
@@ -144,8 +143,6 @@ export class AuthService {
   }
 
   async verifyEmail(email: string, code: string) {
-    email = email.toLowerCase();
-
     const verificationCode = await this.prisma.verificationCode.findUnique({
       where: {
         email,
@@ -262,8 +259,6 @@ export class AuthService {
   }
 
   private async sendEmailVerificationCode(email: string) {
-    email = email.toLowerCase();
-
     // Generate the code
     let code: string;
 

src/common/common.module.ts

@@ -0,0 +1,5 @@
+import { Global, Module } from '@nestjs/common';
+
+@Global()
+@Module({})
+export class CommonModule {}

src/common/pipes/lowercase.pipe.ts

@@ -0,0 +1,8 @@
+import { PipeTransform, Injectable } from '@nestjs/common';
+
+@Injectable()
+export class LowercasePipe implements PipeTransform {
+  transform(value: string) {
+    return value.toLowerCase();
+  }
+}