C++

Example: Http.DownloadAppend method

Demonstrates the DownloadAppend method. C++

#include <CkHttp.h>
#include <CkStringBuilder.h>
#include <CkFileAccess.h>

void ChilkatSample(void)
    {
    bool success = false;

    const char *targetPath = "c:/temp/qa_output/download.txt";

    CkHttp http;
    http.put_KeepResponseBody(true);

    //  Assume the target file in the local filesystem does not yet exist.
    success = http.DownloadAppend("https://chilkatsoft.com/testData/helloWorld.txt",targetPath);
    int statusCode = http.get_LastStatus();
    if (statusCode == 0) {
        //  Unable to either send the request or get the response.
        std::cout << http.lastErrorText() << "\r\n";
        return;
    }

    //  Should be 200.
    std::cout << "Response status code: " << statusCode << "\r\n";

    //  Examine the contents of the file.
    CkStringBuilder sb;
    sb.LoadFile(targetPath,"utf-8");
    std::cout << sb.getAsString() << "\r\n";

    //  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.get_LastStatus();
    if (statusCode == 0) {
        //  Unable to either send the request or get the response.
        std::cout << http.lastErrorText() << "\r\n";
        return;
    }

    //  Should be 200.
    std::cout << "Response status code: " << statusCode << "\r\n";

    //  Examine the contents of the file.
    sb.LoadFile(targetPath,"utf-8");
    std::cout << sb.getAsString() << "\r\n";

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

    //  Delete the local target file.
    CkFileAccess fac;
    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.get_LastStatus();
    if (statusCode == 0) {
        //  Unable to either send the request or get the response.
        std::cout << http.lastErrorText() << "\r\n";
    }
    else {
        //  We got a response, and we already know it wasn't a 200 success response.
        //  It should be a 404 not found.
        std::cout << "Response status code: " << statusCode << "\r\n";
        //  Examine the response body.
        std::cout << "Response body:" << "\r\n";
        std::cout << http.lastResponseBody() << "\r\n";
    }
    }