feat: download

- able to download file from express

client/src/app/api/eventsApi.js

@@ -1,6 +1,21 @@
 import axios from 'axios';
 import { eventsURL } from '../api/apiConstants';
 
+export const downloadEvents = async () => {
+  await axios({
+    url: eventsURL + '/download',
+    method: 'GET',
+    responseType: 'blob', // important
+  }).then((response) => {
+    const url = window.URL.createObjectURL(new Blob([response.data]));
+    const link = document.createElement('a');
+    link.href = url;
+    link.setAttribute('download', 'events.json');
+    document.body.appendChild(link);
+    link.click();
+  });
+};
+
 export const fetchAllEvents = async () => {
   const res = await axios.get(eventsURL);
   return res.data;