Issue#2 solved

src/main/webapp/js/requests.js

@@ -60,4 +60,20 @@ function createPokemonTypesTable() {
             </tbody>
         </table>
     `
+}
+
+function createTrainer() {
+    const name = document.getElementById('trainerName').value;
+    const profileurl = document.getElementById('profileUrl').value;
+    const data = {
+        profileUrl: profileurl,
+        name: name
+    }
+    fetch('/pokemon/api/trainers', {
+        method: 'POST',
+        headers: {
+            'Content-Type': 'application/json'
+        },
+        body: JSON.stringify(data)
+    }).then(response => updateTrainerTable())
 }
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