Adding analyze image sample

Author: wiazur

nodejs/Vision/AnalyzeRemoteImage.js

@@ -0,0 +1,49 @@
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+'use strict'
+
+const request = require('request')
+
+/**
+ * This sample uses the Computer Vision API to analyze a remote image.
+ * It returns image properties such as categories, description (tags), color, and size.
+ *
+ * Computer Vision API - v2 .1:
+ * https: //westus.dev.cognitive.microsoft.com/docs/services/5cd27ec07268f6c679a3e641/operations/56f91f2e778daf14a499f20d
+ */
+
+// Add your Computer Vision subscription key and endpoint to your environment variables.
+let subscriptionKey = process.env['COMPUTER_VISION_SUBSCRIPTION_KEY']
+let endpoint = process.env['COMPUTER_VISION_ENDPOINT'] + '/vision/v2.1/analyze'
+
+// Image to be analyzed; you may use your own URL image.
+const url =
+    'https://raw.githubusercontent.com/Azure-Samples/cognitive-services-sample-data-files/master/ComputerVision/Images/objects.jpg'
+
+// Request parameters.
+const params = {
+    'visualFeatures': 'Categories,Description,Color',
+    'details': '',
+    'language': 'en'
+}
+
+// Options
+const options = {
+    uri: endpoint,
+    qs: params,
+    body: '{"url": ' + '"' + url + '"}',
+    headers: {
+        'Content-Type': 'application/json',
+        'Ocp-Apim-Subscription-Key' : subscriptionKey
+    }
+}
+
+// Make the request.
+request.post(options, (error, response, body) => {
+    console.error('error:', error)
+    console.log('statusCode:', response && response.statusCode)
+    console.log('original image:', url.substring(url.lastIndexOf('/') + 1))
+    console.log()
+    console.log(JSON.stringify(JSON.parse(body), null, 2))
+})