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(Unicode C++) Use an Azure Service SAS

Shows how to use an Azure Service SAS. (In this case, it is an SAS for a blob.)

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#include <CkRestW.h>
#include <CkStringBuilderW.h>
#include <CkBinDataW.h>

void ChilkatSample(void)
    {
    // Azure Blob Service Example: Upload binary bytes to a block blob.
    // This uses a Service SAS for Authorization.

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

    CkRestW rest;

    // Connect to the Azure Storage Blob Service
    bool bTls = true;
    int port = 443;
    bool bAutoReconnect = true;
    // In this example, the storage account name is "chilkat".
    bool success = rest.Connect(L"chilkat.blob.core.windows.net",port,bTls,bAutoReconnect);
    if (success != true) {
        wprintf(L"%s\n",rest.lastErrorText());
        return;
    }

    // ----------------------------------------------------------------------------------------------
    // The code above this comment could be placed inside a function/subroutine within the application
    // because the connection does not need to be made for every request.  Once the connection is made
    // the app may send many requests..
    // ----------------------------------------------------------------------------------------------

    // Note: The application does not need to explicitly set the following
    // headers: Content-Length, x-ms-date, Authorization.  These headers
    // are automatically set by Chilkat.

    // Let's load a previously computed Azure Storage Account SAS token and use it.
    // See How to Create an Azure Service SAS
    CkStringBuilderW sbToken;
    success = sbToken.LoadFile(L"qa_data/tokens/azureStorageServiceSas.txt",L"utf-8");
    if (success != true) {
        wprintf(L"Failed to load SAS token.\n");
        return;
    }

    // Add the Shared Access Signature query params for authorization.
    rest.AddQueryParams(sbToken.getAsString());

    // IMPORTANT: Make sure to set the x-ms-blob-type header:
    success = rest.AddHeader(L"x-ms-blob-type",L"BlockBlob");

    // IMPORTANT: Make sure to add the x-ms-date header.
    // When the header name is "x-ms-date", Chilkat will recognize the keyword "NOW" 
    // and will substitute the current system date/time formatted as required by Microsoft.
    success = rest.AddHeader(L"x-ms-date",L"NOW");

    // For this example, we'll just load a JPG file into memory..
    CkBinDataW binData;
    success = binData.LoadFile(L"qa_data/jpg/starfish.jpg");
    if (success != true) {
        wprintf(L"Failed to load JPG file.\n");
        return;
    }

    // Note: The maximum size of a block blob created by uploading in a single step is 64MB.  
    // For larger files, the upload must be broken up into blocks.  There is another Chilkat example for that..
    CkStringBuilderW sbResponse;
    success = rest.FullRequestBd(L"PUT",L"/mycontainer/starfish.jpg",binData,sbResponse);
    if (success != true) {
        wprintf(L"%s\n",rest.lastErrorText());
        return;
    }

    // When successful, the Azure Storage service will respond with a 201 response status code,
    // with no response body.
    if (rest.get_ResponseStatusCode() != 201) {
        // Examine the request/response to see what happened.
        wprintf(L"response status code = %d\n",rest.get_ResponseStatusCode());
        wprintf(L"response status text = %s\n",rest.responseStatusText());
        wprintf(L"response header: %s\n",rest.responseHeader());
        wprintf(L"response body (if any): %s\n",sbResponse.getAsString());
        wprintf(L"---\n");
        wprintf(L"LastRequestStartLine: %s\n",rest.lastRequestStartLine());
        wprintf(L"LastRequestHeader: %s\n",rest.lastRequestHeader());
        wprintf(L"Failed.\n");
        return;
    }

    wprintf(L"Success.\n");
    }

 

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