(Android™) Upload using Azure Storage Account Shared Access Signature (SAS) Authorization

Sample code to upload binary bytes to a block blob in Azure Cloud Storage using an Azure Storage Account Shared Access Signature (SAS) Authorization. This creates a block blob, or replaces an existing block blob.

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..

Note: This example requires Chilkat v9.5.0.65 or later.

Chilkat Android™ Downloads Android™ Java Libraries Android C/C++ Libraries

// Important: Don't forget to include the call to System.loadLibrary
// as shown at the bottom of this code sample.
package com.test;

import android.app.Activity;
import com.chilkatsoft.*;

import android.widget.TextView;
import android.os.Bundle;

public class SimpleActivity extends Activity {

  private static final String TAG = "Chilkat";

  // Called when the activity is first created.
  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    // Note: This example requires Chilkat v9.5.0.65 or greater.

    // Azure Blob Service Example: Upload binary bytes to a block blob.
    // This uses a Shared Access Signature (SAS) for Authorization.
    // This creates a new block blob or replaces an existing one in its entirety.
    // See also: https://msdn.microsoft.com/en-us/library/azure/dd179451.aspx

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

    CkRest rest = new CkRest();

    // Connect to the Azure Storage Blob Service
    boolean bTls = true;
    int port = 443;
    boolean bAutoReconnect = true;
    // In this example, the storage account name is "chilkat".
    boolean success = rest.Connect("chilkat.blob.core.windows.net",port,bTls,bAutoReconnect);
    if (success != true) {
        Log.i(TAG, 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 Storage Account Shared Access Signature
    CkStringBuilder sbToken = new CkStringBuilder();
    success = sbToken.LoadFile("qa_data/tokens/azureStorageAccountSas.txt","utf-8");
    if (success != true) {
        Log.i(TAG, "Failed to load SAS token.");
        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("x-ms-blob-type","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("x-ms-date","NOW");

    // For this example, we'll just load a JPG file into memory..
    CkBinData binData = new CkBinData();
    success = binData.LoadFile("qa_data/jpg/starfish.jpg");
    if (success != true) {
        Log.i(TAG, "Failed to load JPG file.");
        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..
    CkStringBuilder sbResponse = new CkStringBuilder();
    success = rest.FullRequestBd("PUT","/mycontainer/starfish.jpg",binData,sbResponse);
    if (success != true) {
        Log.i(TAG, 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.
        Log.i(TAG, "response status code = " + String.valueOf(rest.get_ResponseStatusCode()));
        Log.i(TAG, "response status text = " + rest.responseStatusText());
        Log.i(TAG, "response header: " + rest.responseHeader());
        Log.i(TAG, "response body (if any): " + sbResponse.getAsString());
        Log.i(TAG, "---");
        Log.i(TAG, "LastRequestStartLine: " + rest.lastRequestStartLine());
        Log.i(TAG, "LastRequestHeader: " + rest.lastRequestHeader());
        Log.i(TAG, "Failed.");
        return;
        }

    Log.i(TAG, "Success.");

  }

  static {
      System.loadLibrary("chilkat");

      // Note: If the incorrect library name is passed to System.loadLibrary,
      // then you will see the following error message at application startup:
      //"The application <your-application-name> has stopped unexpectedly. Please try again."
  }
}