Simple JavaScript code to access the Azure Cognitive Services for Computer Vision

imageAnalysis.js

// Basic JavaScript function to submit an image to the Microsoft Cognitive Services API.
// Note: to get this running, you need a valid subscription key. Also, make sure you
// adapt the URL of the service to match the region where you created it (see the TODO comment).
// 
// Microsoft tutorial:
// https://docs.microsoft.com/en-us/azure/cognitive-services/computer-vision/tutorials/javascript-tutorial

function analyzeButtonClick() {
    // Retrieve the user-entered value of the image URL
    let sourceImageUrl = $("#inputImage").val();
    // Retrieve the user-entered value of the subscription key
    let subscriptionKey = $("#subscriptionKey").val();
    // Call the processing function, passing the user entered values
    // as well as a reference to the output text area element
    AnalyzeImage(subscriptionKey, sourceImageUrl, $("#responseTextArea"));
}

function AnalyzeImage(subscriptionKey, sourceImageUrl, responseTextArea) {
    // Request parameters
    let params = {
        // Choose categories to analyze - see the documentation for reference
        "visualFeatures": "Categories,Tags,Description,Faces,ImageType,Color,Adult",
        "details": "",
        "language": "en",
    };
    
    // ... AJAX call to the Azure Cognitive Service for Computer Vision goes here ...
}