Feat: Add LoginService for handling login attempts

frontend/src/services/LoginService.ts

@@ -0,0 +1,30 @@
+import axios from "axios";
+import apiRoutes from "../routes/routesDefinitions";
+import { LoginAttempt, User } from "../types/User";
+
+export default async function postLoginAttempt(
+  username: string,
+  password: string
+): Promise<User | null> {
+  // Create login attempt
+  const loginAttempt: LoginAttempt = {
+    username: username,
+    password: password,
+  };
+
+  return await axios
+    .post(apiRoutes.login, loginAttempt)
+    .then((res) => {
+      if (res.status === 200 && res.data.username && res.data.password) {
+        const user: User = {
+          username: res.data.username,
+          password: res.data.password,
+        };
+        return user;
+      }
+    })
+    .catch((e) => {
+      console.log(e);
+      return e.response;
+    });
+}