login and authentication

login via totp
authentication via access and refresh tokens

src/service/userService.ts

@@ -0,0 +1,44 @@
+import { dataSource } from "../data-source";
+import { user } from "../entity/user";
+import InternalException from "../exceptions/internalException";
+
+export default abstract class UserService {
+  /**
+   * @description get user by id
+   * @param id number
+   * @returns {Promise<user>}
+   */
+  static async getById(id: number): Promise<user> {
+    return await dataSource
+      .getRepository(user)
+      .createQueryBuilder("user")
+      .where("user.id = :id", { id: id })
+      .getOneOrFail()
+      .then((res) => {
+        return res;
+      })
+      .catch((err) => {
+        throw new InternalException("user not found by id");
+      });
+  }
+
+  /**
+   * @description get user by username
+   * @param username string
+   * @returns {Promise<user>}
+   */
+  static async getByUsername(username: string): Promise<user> {
+    return await dataSource
+      .getRepository(user)
+      .createQueryBuilder("user")
+      .select()
+      .where("user.username = :username", { username: username })
+      .getOneOrFail()
+      .then((res) => {
+        return res;
+      })
+      .catch((err) => {
+        throw new InternalException("user not found by username");
+      });
+  }
+}