Update app.js

@@ -86,7 +86,8 @@ async function handleEvent(event) {
   .then((stream) => {
     stream.on('data', (chunk) => {
       console.log(chunk);
-
+      var file=fs.createReadStream(chunk);
+      console.log(file);
       var cheerio = require('cheerio');
       
       var uriBase = 'https://koreacentral.api.cognitive.microsoft.com/vision/v2.1/ocr';
@@ -98,15 +99,14 @@ async function handleEvent(event) {
           language: 'en'
         },
         headers: {
-          'Content-Type': 'application/json',
+          'Content-Type': 'application/octet-stream',
           'Ocp-Apim-Subscription-Key': '979dc5d63344438fa4701c62feebb7dc'
         },
         body: chunk
       };
       
       request.post(options, function (error, response, body) {
-        let jsonRes = JSON.stringify(JSON.parse(body), null, '  ');
-        console.log(jsonRes);
+        
         var text='';
         while(data.indexOf('text\\')!=-1)
         {