(C) Example: Http.DownloadAppend method

Demonstrates the DownloadAppend method.

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#include <C_CkHttp.h>
#include <C_CkStringBuilder.h>
#include <C_CkFileAccess.h>

void ChilkatSample(void)
    {
    BOOL success;
    const char *targetPath;
    HCkHttp http;
    int statusCode;
    HCkStringBuilder sb;
    HCkFileAccess fac;

    success = FALSE;

    success = FALSE;

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

    http = CkHttp_Create();
    CkHttp_putKeepResponseBody(http,TRUE);

    // Assume the target file in the local filesystem does not yet exist.
    success = CkHttp_DownloadAppend(http,"https://chilkatsoft.com/testData/helloWorld.txt",targetPath);
    statusCode = CkHttp_getLastStatus(http);
    if (statusCode == 0) {
        // Unable to either send the request or get the response.
        printf("%s\n",CkHttp_lastErrorText(http));
        CkHttp_Dispose(http);
        return;
    }

    // Should be 200.
    printf("Response status code: %d\n",statusCode);

    // Examine the contents of the file.
    sb = CkStringBuilder_Create();
    CkStringBuilder_LoadFile(sb,targetPath,"utf-8");
    printf("%s\n",CkStringBuilder_getAsString(sb));

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

    // Download another text file and append to the target file.
    success = CkHttp_DownloadAppend(http,"https://chilkatsoft.com/testData/this_is_a_test.txt",targetPath);
    statusCode = CkHttp_getLastStatus(http);
    if (statusCode == 0) {
        // Unable to either send the request or get the response.
        printf("%s\n",CkHttp_lastErrorText(http));
        CkHttp_Dispose(http);
        CkStringBuilder_Dispose(sb);
        return;
    }

    // Should be 200.
    printf("Response status code: %d\n",statusCode);

    // Examine the contents of the file.
    CkStringBuilder_LoadFile(sb,targetPath,"utf-8");
    printf("%s\n",CkStringBuilder_getAsString(sb));

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

    // Delete the local target file.
    fac = CkFileAccess_Create();
    CkFileAccess_FileDelete(fac,targetPath);

    // Try to download a file that does not exist:
    success = CkHttp_DownloadAppend(http,"https://chilkatsoft.com/testData/does_not_exist.txt",targetPath);
    statusCode = CkHttp_getLastStatus(http);
    if (statusCode == 0) {
        // Unable to either send the request or get the response.
        printf("%s\n",CkHttp_lastErrorText(http));
    }
    else {
        // We got a response, and we already know it wasn't a 200 success response.
        // It should be a 404 not found.
        printf("Response status code: %d\n",statusCode);
        // Examine the response body.
        printf("Response body:\n");
        printf("%s\n",CkHttp_lastResponseBody(http));
    }



    CkHttp_Dispose(http);
    CkStringBuilder_Dispose(sb);
    CkFileAccess_Dispose(fac);

    }