Node.js

Send a Staged Multipart REST Request

Demonstrates Rest.SendReqMultipart, which sends a multipart request using the parts configured on the object, then reads the response in separate steps.

Background. The staged request model separates sending from reading: a SendReq method transmits the request, ReadResponseHeader reads the status line and headers, and a ReadResp method reads the body. This gives fine control over large or streamed messages compared with the single-call full-request methods.

Chilkat Node.js Downloads

Download Chilkat for Node.js

Node.js

NODEJS_PRELUDE

function chilkatExample() {

    var success = false;

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

    //  Configure one multipart part before sending.
    rest.PartSelector = "1";
    rest.AddHeader("Content-Type","text/plain");
    rest.AddHeader("Content-Disposition","form-data; name=\"field1\"");
    success = rest.SetMultipartBodyString("value1");
    if (success == false) {
        console.log(rest.LastErrorText);
        return;
    }

    //  Send the multipart request using the configured parts.
    success = rest.SendReqMultipart("POST","/api/upload");
    if (success == false) {
        console.log(rest.LastErrorText);
        return;
    }

    //  After sending, read the response status line and header fields.  The return value is the HTTP
    //  status code, or -1 if no response was received.
    var statusCode = rest.ReadResponseHeader();
    if (statusCode < 0) {
        console.log(rest.LastErrorText);
        return;
    }

    console.log("Response status code: " + statusCode);

    //  Read the response body as text.
    var responseBody = rest.ReadRespBodyString();
    if (rest.LastMethodSuccess == false) {
        console.log(rest.LastErrorText);
        return;
    }

    console.log(responseBody);

}

chilkatExample();