(Node.js) WhatsApp - Send a Linked Media Message

Demonstrates how to send a media message where the media content is a link to an external URL. This example demonstrates sending an image (JPG) media message.

For more information, see https://developers.facebook.com/docs/whatsapp/api/messages/media

Install Chilkat for Node.js and Electron using npm at Chilkat npm packages for Node.js Chilkat npm packages for Electron on Windows, Linux, MacOSX, and ARM

var os = require('os');
if (os.platform() == 'win32') {  
    if (os.arch() == 'ia32') {
        var chilkat = require('@chilkat/ck-node21-win-ia32');
    } else {
        var chilkat = require('@chilkat/ck-node21-win64'); 
    }
} else if (os.platform() == 'linux') {
    if (os.arch() == 'arm') {
        var chilkat = require('@chilkat/ck-node21-arm');
    } else if (os.arch() == 'x86') {
        var chilkat = require('@chilkat/ck-node21-linux32');
    } else {
        var chilkat = require('@chilkat/ck-node21-linux64');
    }
} else if (os.platform() == 'darwin') {
    if (os.arch() == 'arm64') {
        var chilkat = require('@chilkat/ck-node21-mac-m1');
    } else {
        var chilkat = require('@chilkat/ck-node21-macosx');
    }
}

function chilkatExample() {

    // This example assumes the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    var http = new chilkat.Http();
    var success;

    // Implements the following CURL command:

    // curl -X POST https://example.com/v1/messages \
    //   -H "Authorization: Bearer your-auth-token" \
    //   -d '
    // {
    //     "recipient_type": "individual-or-group",
    //     "to": "whatsapp-id-or-group-id",
    //     "type": "image",
    //     "image": {
    //       "link": "http(s)://the-url",
    //       "provider": {
    //         "name" : "provider-name"
    //       },
    //     "caption": "your-image-caption"
    //   }
    // }'

    // Use the following online tool to generate HTTP code from a CURL command
    // Convert a cURL Command to HTTP Source Code

    // Use this online tool to generate code from sample JSON:
    // Generate Code to Create JSON

    // The following JSON is sent in the request body.

    // {
    //   "recipient_type": "individual-or-group",
    //   "to": "whatsapp-id-or-group-id",
    //   "type": "image",
    //   "image": {
    //     "link": "http(s)://the-url",
    //     "provider": {
    //       "name": "provider-name"
    //     },
    //     "caption": "your-image-caption"
    //   }
    // }

    var json = new chilkat.JsonObject();
    json.UpdateString("recipient_type","individual-or-group");
    json.UpdateString("to","whatsapp-id-or-group-id");
    json.UpdateString("type","image");
    json.UpdateString("image.link","http(s)://the-url");
    json.UpdateString("image.provider.name","provider-name");
    json.UpdateString("image.caption","your-image-caption");

    // Adds the "Authorization: Bearer your-auth-token" header.
    http.AuthToken = "your-auth-token";

    // resp: HttpResponse
    var resp = http.PostJson3("https://example.com/v1/messages","application/json",json);
    if (http.LastMethodSuccess == false) {
        console.log(http.LastErrorText);
        return;
    }

    var sbResponseBody = new chilkat.StringBuilder();
    resp.GetBodySb(sbResponseBody);
    var jResp = new chilkat.JsonObject();
    jResp.LoadSb(sbResponseBody);
    jResp.EmitCompact = false;

    console.log("Response Body:");
    console.log(jResp.Emit());

    var respStatusCode = resp.StatusCode;
    console.log("Response Status Code = " + respStatusCode);
    if (respStatusCode >= 400) {
        console.log("Response Header:");
        console.log(resp.Header);
        console.log("Failed.");

        return;
    }

    // Sample JSON response:
    // (Sample code for parsing the JSON response is shown below)

    // {
    //   "messages": [
    //     {
    //       "id": "gBEGkYiEB1VXAglK1ZEqA1YKPrU"
    //     }
    //   ]
    // }

    // Sample code for parsing the JSON response...
    // Use the following online tool to generate parsing code from sample JSON:
    // Generate Parsing Code from JSON

    var id;

    var i = 0;
    var count_i = jResp.SizeOfArray("messages");
    while (i < count_i) {
        jResp.I = i;
        id = jResp.StringOf("messages[i].id");
        i = i+1;
    }


}

chilkatExample();