permission system - permission formatting

src/service/permissionService.ts

@@ -0,0 +1,24 @@
+import { dataSource } from "../data-source";
+import { permission } from "../entity/permission";
+import InternalException from "../exceptions/internalException";
+
+export default abstract class PermissionService {
+  /**
+   * @description get permission by user
+   * @param user number
+   * @returns {Promise<Array<permission>>}
+   */
+  static async getByUser(userId: number): Promise<Array<permission>> {
+    return await dataSource
+      .getRepository(permission)
+      .createQueryBuilder("permission")
+      .where("permission.userId = :userId", { userId: userId })
+      .getMany()
+      .then((res) => {
+        return res;
+      })
+      .catch((err) => {
+        throw new InternalException("permission not found by user");
+      });
+  }
+}