roles and permissions

src/service/userService.ts

@@ -1,4 +1,5 @@
 import { dataSource } from "../data-source";
+import { role } from "../entity/role";
 import { user } from "../entity/user";
 import InternalException from "../exceptions/internalException";
 
@@ -81,4 +82,24 @@ export default abstract class UserService {
         throw new InternalException("could not count users");
       });
   }
+
+  /**
+   * @description get roles assigned to user
+   * @param userId number
+   * @returns {Promise<Array<role>>}
+   */
+  static async getAssignedRolesByUserId(userId: number): Promise<Array<role>> {
+    return await dataSource
+      .getRepository(user)
+      .createQueryBuilder("user")
+      .leftJoinAndSelect("user.roles", "roles")
+      .where("user.id = :id", { id: userId })
+      .getOneOrFail()
+      .then((res) => {
+        return res.roles;
+      })
+      .catch((err) => {
+        throw new InternalException("could not get roles for user");
+      });
+  }
 }