.

server/src/contexts/common/infrastructure/sequelize/SequelizeBusinessTransaction.ts

@@ -24,36 +24,6 @@ export class SequelizeBusinessTransaction
       return await this._connection.transaction(work);
     } catch (error: unknown) {
       //error instanceof BaseError;
-
-      /*
-        {
-          name: "SequelizeValidationError",
-          errors: [
-            {
-              message: "Customer.entity_type cannot be null",
-              type: "notNull Violation",
-              path: "entity_type",
-              value: null,
-              origin: "CORE",
-              instance: {
-                dataValues: {
-                  id: "85ac4089-6ad7-4058-a16a-adf7fbbfe388",
-                  created_at: "2023-08-02T10:42:49.248Z",
-                },
-              ...
-              ...
-                },
-                isNewRecord: true,
-              },
-              validatorKey: "is_null",
-              validatorName: null,
-              validatorArgs: [
-              ],
-            },
-          ],
-        }
-      */
-
       throw InfrastructureError.create(
         InfrastructureError.UNEXCEPTED_ERROR,
         (error as Error).message,

server/src/contexts/users/application/userServices.ts

@@ -1,5 +1,5 @@
 import { IAdapter, RepositoryBuilder } from "@/contexts/common/domain";
-import { Email, UniqueID } from "@shared/contexts";
+import { Email, Name, UniqueID } from "@shared/contexts";
 import { IUserRepository, User } from "../domain";
 
 export const existsUserByID = async (
@@ -12,6 +12,18 @@ export const existsUserByID = async (
     .complete(async (t) => repository({ transaction: t }).existsUserWithId(id));
 };
 
+export const existsUserByName = async (
+  name: Name,
+  adapter: IAdapter,
+  repository: RepositoryBuilder<IUserRepository>,
+): Promise<boolean> => {
+  return await adapter
+    .startTransaction()
+    .complete(async (t) =>
+      repository({ transaction: t }).existsUserWithName(name),
+    );
+};
+
 export const findUserByID = async (
   id: UniqueID,
   adapter: IAdapter,