WIP handle unique constraint exception

src/modules/newauthentication/interface/dtos/authentication.paginated.response.dto.ts

@@ -0,0 +1,6 @@
+import { PaginatedResponseDto } from '@mobicoop/ddd-library';
+import { AuthenticationResponseDto } from './authentication.response.dto';
+
+export class AauthenticationPaginatedResponseDto extends PaginatedResponseDto<AuthenticationResponseDto> {
+  readonly data: readonly AuthenticationResponseDto[];
+}

src/modules/newauthentication/interface/dtos/authentication.response.dto.ts

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+import { ResponseBase } from '@mobicoop/ddd-library';
+
+export class AuthenticationResponseDto extends ResponseBase {}

src/modules/newauthentication/interface/grpc-controllers/authentication.proto

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+syntax = "proto3";
+
+package authentication;
+
+service AuthenticationService {
+  rpc Validate(AuthenticationByUsernamePassword) returns (Id);
+  rpc Create(Authentication) returns (Id);
+  rpc AddUsername(Username) returns (Id);
+  rpc UpdatePassword(Password) returns (Id);
+  rpc UpdateUsername(Username) returns (Id);
+  rpc DeleteUsername(Username) returns (Id);
+  rpc Delete(Id) returns (Empty);
+}
+
+message AuthenticationByUsernamePassword {
+  string username = 1;
+  string password = 2;
+}
+
+message Authentication {
+  repeated Username usernames = 1;
+  string password = 2;
+}
+
+message Password {
+  string id = 1;
+  string password = 2;
+}
+
+message Username {
+  string id = 1;
+  string name = 2;
+  string type = 3;
+}
+
+message Id {
+  string id = 1;
+}
+
+message Empty {}

src/modules/newauthentication/interface/grpc-controllers/create-authentication.grpc.controller.ts

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+import {
+  AggregateID,
+  IdResponse,
+  RpcExceptionCode,
+  RpcValidationPipe,
+} from '@mobicoop/ddd-library';
+import { Controller, UsePipes } from '@nestjs/common';
+import { CommandBus } from '@nestjs/cqrs';
+import { GrpcMethod, RpcException } from '@nestjs/microservices';
+import { CreateAuthenticationRequestDto } from './dtos/create-authentication.request.dto';
+import { CreateAuthenticationCommand } from '@modules/newauthentication/core/application/commands/create-authentication/create-authentication.command';
+import { AuthenticationAlreadyExistsException } from '@modules/newauthentication/core/domain/authentication.errors';
+
+@UsePipes(
+  new RpcValidationPipe({
+    whitelist: true,
+    forbidUnknownValues: false,
+  }),
+)
+@Controller()
+export class CreateAuthenticationGrpcController {
+  constructor(private readonly commandBus: CommandBus) {}
+
+  @GrpcMethod('AuthenticationService', 'Create')
+  async validate(data: CreateAuthenticationRequestDto): Promise<IdResponse> {
+    try {
+      const aggregateID: AggregateID = await this.commandBus.execute(
+        new CreateAuthenticationCommand(data),
+      );
+      return new IdResponse(aggregateID);
+    } catch (error: any) {
+      if (error instanceof AuthenticationAlreadyExistsException)
+        throw new RpcException({
+          code: RpcExceptionCode.ALREADY_EXISTS,
+          message: error.message,
+        });
+      throw new RpcException({
+        code: RpcExceptionCode.UNKNOWN,
+        message: error.message,
+      });
+    }
+  }
+}

src/modules/newauthentication/interface/grpc-controllers/dtos/create-authentication.request.dto.ts

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+import { Type } from 'class-transformer';
+import {
+  ArrayMinSize,
+  IsArray,
+  IsNotEmpty,
+  IsString,
+  ValidateNested,
+} from 'class-validator';
+import { UsernameDto } from './username.dto';
+
+export class CreateAuthenticationRequestDto {
+  @Type(() => UsernameDto)
+  @IsArray()
+  @ArrayMinSize(1)
+  @ValidateNested({ each: true })
+  usernames: UsernameDto[];
+
+  @IsString()
+  @IsNotEmpty()
+  password: string;
+}

src/modules/newauthentication/interface/grpc-controllers/dtos/username.dto.ts

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+import { Type } from '@modules/newauthentication/core/domain/username.types';
+import { IsEnum, IsNotEmpty, IsString } from 'class-validator';
+
+export class UsernameDto {
+  @IsString()
+  name: string;
+
+  @IsEnum(Type)
+  @IsNotEmpty()
+  type: Type;
+}