Node.js

Explaining the Rest ClearResponseBodyStream Method

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The ClearResponseBodyStream method would be needed if your applicaiton called SetResponseBodyStream to send the response to a stream for one request, but then wants to subsequently do something else. The application must call ClearResponseBodyStream to no longer send responses to the stream. Node.js

NODEJS_PRELUDE

function chilkatExample() {

    var success = false;

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

    var rest = new chilkat.Rest();

    //  Connect to the web server
    var bTls = true;
    var port = 443;
    var bAutoReconnect = true;
    success = rest.Connect("www.chilkatsoft.com",port,bTls,bAutoReconnect);
    if (success !== true) {
        console.log(rest.LastErrorText);
        return;
    }

    //  Setup a file stream for the download
    var fileStream = new chilkat.Stream();
    fileStream.SinkFile = "qa_output/starfish.jpg";

    //  Indicate that the call to FullRequestNoBody should send the response body
    //  to fileStream if the response status code is 200.
    //  If a non-success response status code is received, then nothing
    //  is streamed to the output file and the error response is returned by FullRequestNoBody.
    var expectedStatus = 200;
    rest.SetResponseBodyStream(expectedStatus,true,fileStream);

    var responseStr = rest.FullRequestNoBody("GET","/images/starfish.jpg");
    if (rest.LastMethodSuccess == false) {
        //  Examine the request/response to see what happened.
        console.log("response status code = " + rest.ResponseStatusCode);
        console.log("response status text = " + rest.ResponseStatusText);
        console.log("response header: " + rest.ResponseHeader);
        console.log("response body (if any): " + responseStr);
        console.log("---");
        console.log("LastRequestStartLine: " + rest.LastRequestStartLine);
        console.log("LastRequestHeader: " + rest.LastRequestHeader);
        return;
    }

    console.log("downloaded starfish.jpg");

    //  Clear the response body stream previously set in the call to SetResponseBodyStream.
    rest.ClearResponseBodyStream();

    //  Download something else, but this time send the response body to bd.
    var bd = new chilkat.BinData();
    success = rest.FullRequestNoBodyBd("GET","/images/penguins.jpg",bd);
    if (success == false) {
        //  Examine the request/response to see what happened.
        console.log("response status code = " + rest.ResponseStatusCode);
        console.log("response status text = " + rest.ResponseStatusText);
        console.log("response header: " + rest.ResponseHeader);
        console.log("response body (if any): " + bd.GetString("utf-8"));
        console.log("---");
        console.log("LastRequestStartLine: " + rest.LastRequestStartLine);
        console.log("LastRequestHeader: " + rest.LastRequestHeader);
        return;
    }

    //  Save the contents of bd to a file.
    success = bd.WriteFile("qa_output/penguins.jpg");

    console.log("Success: " + success);

}

chilkatExample();