Update app.js

@@ -86,10 +86,13 @@ async function handleEvent(event) {
       client.getMessageContent(event.message.id)
       .then((stream) => {
         stream.on('data', (chunk) => {
-          const fs = require('fs');
           fs.writeFileSync('image.png',chunk);       
         });
       });
+      app.get('/photo/1.png',(req,res)=>{
+        res.send(fs.readFileSync('./photo/1.png'));
+      })
+
       var cheerio = require('cheerio');
       
       var uriBase = 'https://koreacentral.api.cognitive.microsoft.com/vision/v2.1/ocr';