12 new API endpoints

src/routes/api/string/stringLength.js

@@ -0,0 +1,13 @@
+const express = require('express');
+const router = express.Router();
+
+router.post('/', (req, res) => {
+    const { input } = req.body;
+    res.json({ ret: String(input).length });
+});
+
+router.get('/:string', (req, res) => {
+    res.json({ ret: req.params.string.length });
+});
+
+module.exports = router;