Node.js

Example: Http.DownloadAppend method

Demonstrates the DownloadAppend method. Node.js

NODEJS_PRELUDE

function chilkatExample() {

    var success = false;

    var targetPath = "c:/temp/qa_output/download.txt";

    var http = new chilkat.Http();
    http.KeepResponseBody = true;

    //  Assume the target file in the local filesystem does not yet exist.
    success = http.DownloadAppend("https://chilkatsoft.com/testData/helloWorld.txt",targetPath);
    var statusCode = http.LastStatus;
    if (statusCode == 0) {
        //  Unable to either send the request or get the response.
        console.log(http.LastErrorText);
        return;
    }

    //  Should be 200.
    console.log("Response status code: " + statusCode);

    //  Examine the contents of the file.
    var sb = new chilkat.StringBuilder();
    sb.LoadFile(targetPath,"utf-8");
    console.log(sb.GetAsString());

    //  Output: 
    //  Response status code: 200
    //  Hello World!

    //  Download another text file and append to the target file.
    success = http.DownloadAppend("https://chilkatsoft.com/testData/this_is_a_test.txt",targetPath);
    statusCode = http.LastStatus;
    if (statusCode == 0) {
        //  Unable to either send the request or get the response.
        console.log(http.LastErrorText);
        return;
    }

    //  Should be 200.
    console.log("Response status code: " + statusCode);

    //  Examine the contents of the file.
    sb.LoadFile(targetPath,"utf-8");
    console.log(sb.GetAsString());

    //  Output:
    //  Response status code: 200
    //  Hello World!This is a Test.

    //  Delete the local target file.
    var fac = new chilkat.FileAccess();
    fac.FileDelete(targetPath);

    //  Try to download a file that does not exist:
    success = http.DownloadAppend("https://chilkatsoft.com/testData/does_not_exist.txt",targetPath);
    statusCode = http.LastStatus;
    if (statusCode == 0) {
        //  Unable to either send the request or get the response.
        console.log(http.LastErrorText);
    }
    else {
        //  We got a response, and we already know it wasn't a 200 success response.
        //  It should be a 404 not found.
        console.log("Response status code: " + statusCode);
        //  Examine the response body.
        console.log("Response body:");
        console.log(http.LastResponseBody);
    }


}

chilkatExample();