Add POST /user/update

src/dto/user.dto.ts

@@ -1,5 +1,5 @@
 import { ApiProperty } from '@nestjs/swagger';
-import {IsString} from 'class-validator';
+import {IsString, MaxLength} from 'class-validator';
 import {Transform, Type} from "class-transformer";
 
 export class AddUserDto {
@@ -23,3 +23,14 @@ export class GetUsersDto {
   @IsString()
   offset: number;
 }
+
+const UsernameMaxLength = 20
+
+export class UpdateUserDto {
+  @ApiProperty({ type: String, required: true, default: '' })
+  @Transform((address) => address.value.trim().toLowerCase())
+  @MaxLength(UsernameMaxLength, { message: `username must not exceed ${UsernameMaxLength} characters` })
+  @Type(() => String)
+  @IsString()
+  username: string;
+}

src/entities/user-account.entity.ts

@@ -6,7 +6,6 @@ import {
   PrimaryGeneratedColumn,
   UpdateDateColumn,
   ManyToMany,
-  JoinTable, ManyToOne
 } from 'typeorm';
 import { ApiProperty } from '@nestjs/swagger';
 import {Token} from "./token.entity";
@@ -24,7 +23,7 @@ export class UserAccount {
   address: string;
 
   @ApiProperty()
-  @Column()
+  @Column({ unique: true })
   username: string;
 
   @OneToMany(() => Token, (token) => token.user)

src/user/user.controller.ts

@@ -17,7 +17,7 @@ import {UserService} from "./user.service";
 import {JwtTokenDto, JwtTokensDto} from "../dto/jwt.dto";
 import {instanceToPlain, plainToInstance} from "class-transformer";
 import {JwtService} from "@nestjs/jwt";
-import {AddUserDto} from "../dto/user.dto";
+import {UpdateUserDto} from "../dto/user.dto";
 import {JwtUserAccount} from "../entities/user-account.entity";
 import {AuthGuard} from "../common/auth.guard";
 
@@ -170,4 +170,26 @@ export class UserController {
   async getUserTokensCreated(@Param('address') userAddress: string) {
     return await this.userService.getTokensCreated(userAddress)
   }
+
+  @Post('/update')
+  @UseGuards(AuthGuard)
+  @ApiBearerAuth()
+  @UsePipes(new ValidationPipe(validationCfg()))
+  async updateUser(@Request() req, @Body() dto: UpdateUserDto) {
+    if(!req.user) {
+      throw new BadRequestException('InvalidJWT')
+    }
+    const { address } = plainToInstance(JwtUserAccount, req.user)
+    const user = await this.userService.getUserByAddress(address)
+    if(!user) {
+      throw new NotFoundException('User not found')
+    }
+    const existedUsername = await this.userService.getUserByUsername(dto.username)
+    if(existedUsername) {
+      throw new BadRequestException('Username already exist')
+    }
+    const updatedUser = await this.userService.updateUser(address, dto);
+    this.logger.log(`User ${address} successfully updated: "${JSON.stringify(updatedUser)}"`)
+    return updatedUser
+  }
 }

src/user/user.service.ts

@@ -1,7 +1,7 @@
-import { Injectable } from '@nestjs/common';
+import {Injectable, NotFoundException} from '@nestjs/common';
 import {DataSource, EntityManager} from "typeorm";
 import {SignInRequestEntity, Token, UserAccount} from "../entities";
-import {AddUserDto, GetUsersDto} from "../dto/user.dto";
+import {AddUserDto, UpdateUserDto} from "../dto/user.dto";
 import {generateNonce} from "../utils";
 import {VerifySignatureDto} from "../dto/account.dto";
 import {verifyMessage} from "ethers";
@@ -83,15 +83,33 @@ export class UserService {
   }
 
   async createUser(dto: AddUserDto, entityManager?: EntityManager) {
-    const { address } = dto
+    const address = dto.address.toLowerCase()
+    let username = address.replaceAll('0x', '').slice(0, 6)
+
+    const existedUsername = await this.getUserByUsername(username, entityManager)
+    if(existedUsername) {
+      username = address
+    }
 
     const data = await (entityManager || this.dataSource.manager).insert(UserAccount, {
-      address: address.toLowerCase(),
-      username: address.replaceAll('0x', '').slice(0, 6)
+      address,
+      username
     })
     return data.identifiers[0].id
   }
 
+  async updateUser(address: string, dto: UpdateUserDto) {
+    const user = await this.dataSource.manager.findOne(UserAccount, {
+      where: {
+        address
+      }
+    })
+    return await this.dataSource.getRepository(UserAccount).save({
+      ...user,
+      username: dto.username,
+    })
+  }
+
   async getUserByAddress(address: string, entityManager?: EntityManager) {
     return await (entityManager || this.dataSource.manager).findOne(UserAccount, {
       where: {
@@ -100,6 +118,14 @@ export class UserService {
     })
   }
 
+  async getUserByUsername(username: string, entityManager?: EntityManager) {
+    return await (entityManager || this.dataSource.manager).findOne(UserAccount, {
+      where: {
+        username,
+      },
+    })
+  }
+
   async getTokensCreated(userAddress: string) {
     return await this.dataSource.manager.find(Token, {
       relations: ['user'],