C#

REST File Streaming Upload

See more Azure Cloud Storage Examples

Demonstrates how to stream the REST body from a file. This example demonstrates a REST upload to the Azure Cloud Storage service. C#

bool success = false;

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

Chilkat.Rest rest = new Chilkat.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".
success = rest.Connect("chilkat.blob.core.windows.net",port,bTls,bAutoReconnect);
if (success != true) {
    Debug.WriteLine(rest.LastErrorText);
    return;
}

//  Provide Azure Cloud credentials for the REST call.
Chilkat.AuthAzureStorage azAuth = new Chilkat.AuthAzureStorage();
azAuth.AccessKey = "AZURE_ACCESS_KEY";
//  The account name used here should match the 1st part of the domain passed in the call to Connect (above).
azAuth.Account = "chilkat";
azAuth.Scheme = "SharedKey";
azAuth.Service = "Blob";
//  This causes the "x-ms-version: 2021-08-06" header to be automatically added.
azAuth.XMsVersion = "2021-08-06";
success = rest.SetAuthAzureStorage(azAuth);

//  Set some request headers.
success = rest.AddHeader("x-ms-blob-content-disposition","attachment; filename=\"hamlet.xml\"");
success = rest.AddHeader("x-ms-blob-type","BlockBlob");
success = rest.AddHeader("x-ms-meta-m1","v1");
success = rest.AddHeader("x-ms-meta-m2","v2");

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

Chilkat.Stream fileStream = new Chilkat.Stream();
fileStream.SourceFile = "qa_data/xml/hamlet.xml";

//  Upload to the Azure Cloud Storage service.
//  The file is streamed, so the full file never has to completely reside in memory.
//  The file is uploaded to the container named "test".
string responseStr = rest.FullRequestStream("PUT","/test/hamlet.xml",fileStream);
if (rest.LastMethodSuccess != true) {
    Debug.WriteLine(rest.LastErrorText);
    return;
}

//  When successful, the Azure Storage service will respond with a 201 response code,
//  with an empty body.  Therefore, in the success condition, the responseStr is empty.
if (rest.ResponseStatusCode == 201) {
    Debug.WriteLine("File uploaded.");
}
else {
    //  Examine the request/response to see what happened.
    Debug.WriteLine("response status code = " + Convert.ToString(rest.ResponseStatusCode));
    Debug.WriteLine("response status text = " + rest.ResponseStatusText);
    Debug.WriteLine("response header: " + rest.ResponseHeader);
    Debug.WriteLine("response body (if any): " + responseStr);
    Debug.WriteLine("---");
    Debug.WriteLine("LastRequestStartLine: " + rest.LastRequestStartLine);
    Debug.WriteLine("LastRequestHeader: " + rest.LastRequestHeader);
}