(Node.js) multipart/form-data HTTP POST

Demonstrates how to construct and send a multipart/form-data HTTP POST.

For more information, see https://chilkatsoft.com/http_multipart_form_data_post.asp

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

    // Sends the following multipart/form-data POST:

    // POST /xyz/something HTTP/1.1
    // Host: domain
    // Content-Type: multipart/form-data; boundary=------------090708030009010000030901
    // Content-Length: 2220
    // 
    // --------------090708030009010000030901
    // Content-Disposition: form-data; name="param1"
    // 
    // value1
    // --------------090708030009010000030901
    // Content-Disposition: form-data; name="param2"
    // 
    // value2
    // --------------090708030009010000030901
    // Content-Disposition: form-data; name="starfish20"; filename="starfish20.jpg"
    // Content-Type: image/jpeg
    // 
    // JPEG DATA HERE...
    // --------------090708030009010000030901
    // Content-Disposition: form-data; name="helloWorld"; filename="helloWorld.pdf"
    // Content-Type: application/pdf
    // 
    // PDF DATA HERE...
    // --------------090708030009010000030901
    // Content-Disposition: form-data; name="tinyA"; filename="tinyA.xml"
    // Content-Type: text/xml
    // 
    // XML DATA HERE...
    // --------------090708030009010000030901--
    // 

    var req = new chilkat.HttpRequest();
    req.HttpVerb = "POST";
    req.ContentType = "multipart/form-data";
    req.Path = "/xyz/something";

    req.AddParam("param1","value1");
    req.AddParam("param2","value2");

    // Add some small files to the request. (Small so we can see what the full request looks like without too much data..)
    var bd = new chilkat.BinData();
    var success = bd.LoadFile("qa_data/jpg/starfish20.jpg");
    req.AddBdForUpload("starfish20","starfish20.jpg",bd,"image/jpeg");

    success = bd.LoadFile("qa_data/pdf/helloWorld.pdf");
    req.AddBdForUpload("helloWorld","helloWorld.pdf",bd,"application/pdf");

    success = bd.LoadFile("qa_data/xml/tinyA.xml");
    req.AddBdForUpload("tinyA","tinyA.xml",bd,"text/xml");

    var http = new chilkat.Http();

    // resp: HttpResponse
    var resp = http.SynchronousRequest("example.com",443,true,req);
    if (http.LastMethodSuccess !== true) {
        console.log(http.LastErrorText);
        return;
    }

    console.log("HTTP response status: " + resp.StatusCode);

    console.log("Received:");
    console.log(resp.BodyStr);


}

chilkatExample();