validate authentication use case

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

@@ -3,7 +3,7 @@ syntax = "proto3";
 package authentication;
 
 service AuthenticationService {
-  rpc Validate(AuthenticationByUsernamePassword) returns (Id);
+  rpc Validate(AuthenticationByNamePassword) returns (Id);
   rpc Create(Authentication) returns (Id);
   rpc AddUsername(Username) returns (Id);
   rpc UpdatePassword(Password) returns (Id);
@@ -12,8 +12,8 @@ service AuthenticationService {
   rpc Delete(UserId) returns (Empty);
 }
 
-message AuthenticationByUsernamePassword {
-  string username = 1;
+message AuthenticationByNamePassword {
+  string name = 1;
   string password = 2;
 }
 

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

@@ -0,0 +1,11 @@
+import { IsNotEmpty, IsString } from 'class-validator';
+
+export class ValidateAuthenticationRequestDto {
+  @IsString()
+  @IsNotEmpty()
+  name: string;
+
+  @IsString()
+  @IsNotEmpty()
+  password: string;
+}

src/modules/authentication/interface/grpc-controllers/validate-authentication.grpc.controller.ts

@@ -0,0 +1,37 @@
+import {
+  AggregateID,
+  IdResponse,
+  RpcExceptionCode,
+  RpcValidationPipe,
+} from '@mobicoop/ddd-library';
+import { Controller, UsePipes } from '@nestjs/common';
+import { QueryBus } from '@nestjs/cqrs';
+import { GrpcMethod, RpcException } from '@nestjs/microservices';
+import { ValidateAuthenticationRequestDto } from './dtos/validate-authentication.request.dto';
+import { ValidateAuthenticationQuery } from '@modules/authentication/core/application/queries/validate-authentication/validate-authentication.query';
+
+@UsePipes(
+  new RpcValidationPipe({
+    whitelist: true,
+    forbidUnknownValues: false,
+  }),
+)
+@Controller()
+export class ValidateAuthenticationGrpcController {
+  constructor(private readonly queryBus: QueryBus) {}
+
+  @GrpcMethod('AuthenticationService', 'Validate')
+  async validate(data: ValidateAuthenticationRequestDto): Promise<IdResponse> {
+    try {
+      const aggregateID: AggregateID = await this.queryBus.execute(
+        new ValidateAuthenticationQuery(data.name, data.password),
+      );
+      return new IdResponse(aggregateID);
+    } catch (error: any) {
+      throw new RpcException({
+        code: RpcExceptionCode.PERMISSION_DENIED,
+        message: 'Permission denied',
+      });
+    }
+  }
+}