refactor to ddh, first commit

old/modules/utils/exception-code.enum.ts

@@ -0,0 +1,19 @@
+export enum ExceptionCode {
+  OK = 0,
+  CANCELLED = 1,
+  UNKNOWN = 2,
+  INVALID_ARGUMENT = 3,
+  DEADLINE_EXCEEDED = 4,
+  NOT_FOUND = 5,
+  ALREADY_EXISTS = 6,
+  PERMISSION_DENIED = 7,
+  RESOURCE_EXHAUSTED = 8,
+  FAILED_PRECONDITION = 9,
+  ABORTED = 10,
+  OUT_OF_RANGE = 11,
+  UNIMPLEMENTED = 12,
+  INTERNAL = 13,
+  UNAVAILABLE = 14,
+  DATA_LOSS = 15,
+  UNAUTHENTICATED = 16,
+}

old/modules/utils/pipes/rpc.validation-pipe.ts

@@ -0,0 +1,14 @@
+import { Injectable, ValidationPipe } from '@nestjs/common';
+import { RpcException } from '@nestjs/microservices';
+
+@Injectable()
+export class RpcValidationPipe extends ValidationPipe {
+  createExceptionFactory() {
+    return (validationErrors = []) => {
+      return new RpcException({
+        code: 3,
+        message: this.flattenValidationErrors(validationErrors),
+      });
+    };
+  }
+}

old/modules/utils/tests/unit/rpc-validation-pipe.usecase.spec.ts

@@ -0,0 +1,20 @@
+import { ArgumentMetadata } from '@nestjs/common';
+import { RpcValidationPipe } from '../../pipes/rpc.validation-pipe';
+import { MatchRequest } from '../../../matcher/domain/dtos/match.request';
+
+describe('RpcValidationPipe', () => {
+  it('should not validate request', async () => {
+    const target: RpcValidationPipe = new RpcValidationPipe({
+      whitelist: true,
+      forbidUnknownValues: false,
+    });
+    const metadata: ArgumentMetadata = {
+      type: 'body',
+      metatype: MatchRequest,
+      data: '',
+    };
+    await target.transform(<MatchRequest>{}, metadata).catch((err) => {
+      expect(err.message).toEqual('Rpc Exception');
+    });
+  });
+});