frontend templating

frontend/static/js/auth/signin.js

@@ -0,0 +1,26 @@
+import isBlankString from '../utils/isBlankString';
+import genJsonPayload from '../utils/genJsonPayload';
+
+import ROUTES from '../api/v1/routes';
+
+const signin = e => {
+  e.preventDefault();
+  let username = document.getElementById('username').value;
+  isBlankString(e, username, 'username');
+
+  let password = document.getElementById('password').value;
+  let payload = {
+    username,
+    password,
+  };
+
+  fetch(ROUTES.loginUser, genJsonPayload(payload)).then(res => {
+    if (res.ok) {
+      alert('success');
+    } else {
+      res.json().then(err => alert(`error: ${err.error}`));
+    }
+  });
+};
+
+export default signin;