Update app.js

@@ -87,8 +87,8 @@ async function handleEvent(event) {
       .then((stream) => {
       .then((stream) => {
         stream.on('data', (chunk) => {
         stream.on('data', (chunk) => {
           const fs = require('fs');
           const fs = require('fs');
-          const file = fs.writeFileSync('./photo/image.jpeg',chunk);
-      
+          fs.writeFileSync('./photo/image.jpeg',chunk);       
+        });
       });
       });
       var cheerio = require('cheerio');
       var cheerio = require('cheerio');