JavaScript

Set a Multipart Part Body from BinData

Demonstrates Rest.SetMultipartBodyBd, which sets the binary body of the selected multipart part from a BinData.

The file paths are relative to the application's current working directory. Absolute paths may also be used. Supply the paths appropriate to your own environment.

Background. A multipart request is assembled part by part: the part selector chooses the part being built, header fields describe it, and a SetMultipartBody method supplies its content. The request is then sent with a multipart send or full-request method.

Note

This example is intended for running within a Chilkat.Js embedded JavaScript engine. All Chilkat JavaScript examples require Chilkat v11.4.0 or greater.

JavaScript

var success = false;

var rest = new CkRest();
var bTls = true;
var bAutoReconnect = true;
success = rest.Connect("example.com",443,bTls,bAutoReconnect);
if (success == false) {
    console.log(rest.LastErrorText);
    return;
}

//  The file paths are relative to the application's current working directory.  Absolute paths
//  may also be used.  Supply the paths appropriate to your own environment.

//  Select the multipart part to build, and set its header fields.
rest.PartSelector = "1";
rest.AddHeader("Content-Disposition","form-data; name=\"field1\"");
rest.AddHeader("Content-Type","image/png");

//  Set the binary body of the selected part from a BinData.
var bdBody = new CkBinData();
var bLoaded = bdBody.LoadFile("qa_data/image.png");
if (bLoaded !== true) {
    console.log("Failed to load the part body file.");
    return;
}

success = rest.SetMultipartBodyBd(bdBody);
if (success == false) {
    console.log(rest.LastErrorText);
    return;
}

var responseText = rest.FullRequestMultipart("POST","/api/upload");
if (rest.LastMethodSuccess == false) {
    console.log(rest.LastErrorText);
    return;
}

console.log(responseText);