azure-samples / storage-blob-android-photo-uploader

Getting started sample for Adroid that show how to upload and retrieve photos/images from the Azure Blob Storage

services	platforms	author
storage	android	pcibraro

Azure Storage Service - Photo Uploader Sample for Android

This sample demostrates how to upload photo images from the gallery in Android into a Block Blob in Azure Storage. It shows different buttons for performing actions such as selecting an image from the gallery, uploading an image to the blob storage or listing all the uploaded images.

Note: This is a project for Android Studio, which uses Gradle and references the Microsot Azure Storage Library for Android available in the Central Maven Repository. Also, it runs against the actual service, so it is highly recommended that you use a test container, as you will be creating and deleting actual blobs.

Running this sample

1. Open the solution with Android Studio.
2. Open the ImageManager.java file and change the "[ACCOUNT_NAME]" and "[ACCOUNT_KEY]" in the storageConnectionString variable with account and key provided in the Azure Portal.

WARNING: Only use Shared Key authentication for testing purposes! Your account name and account key, which give full read/write access to the associated Storage account, will be distributed to every person that downloads your app. This is not a good practice as you risk having your key compromised by untrusted clients. Please consult following documents to understand and use Shared Access Signatures instead. https://docs.microsoft.com/en-us/rest/api/storageservices/delegating-access-with-a-shared-access-signature and https://docs.microsoft.com/en-us/azure/storage/common/storage-dotnet-shared-access-signature-part-1

More information

• What is a Storage Account
• How to use Blob Storage from Android
• Blob Service Concepts
• Blob Service REST API

storage-blob-android-photo-uploader's Issues

how to generate blob shared access signature(SAS) token and URL with REST API ?

how to generate blob shared access signature(SAS) token and URL with REST API ?

Wrong SAS was generated with blob storage SDK for Android

1, iOS SDK SAS is correct：
?se=2018-11-14T02%3A44%3A04Z&sr=b&sp=r&sv=2015-04-05&sig=1iOkA%2BdAZTbF4%2F36uHrC8QT0pi9dIpVC4ma%2F2uxfPrY%3D&spr=https&st=2018-11-13T02%3A44%3A04Z

2, Android SDK SAS is wrong:
sig=KKL9qqSLceaRBGkTWjRQKC6XnhJ5%2FSNsZ6Sqsdc8cSU%3D&st=2018-11-13T03%3A02%3A16Z&se=2018-11-14T03%3A02%3A16Z&sv=2017-04-17&sr=b
(1) missing sp=r
(2) missing spr=https

Null pointer expcetion at CloudBlobContainer container = blobClient.getContainerReference("testcontainer");

am getting null pointer exception at CloudBlobContainer container = blobClient.getContainerReference("testcontainer");

logs as below -

W/System.err: java.lang.NullPointerException: Attempt to invoke virtual method 'int java.lang.String.length()' on a null object reference
2019-01-16 18:33:21.746 23922-24183/com.microsoft.photouploader W/System.err: at com.microsoft.azure.storage.core.Utility.isHostDnsName(Utility.java:404)
2019-01-16 18:33:21.746 23922-24183/com.microsoft.photouploader W/System.err: at com.microsoft.azure.storage.core.Utility.determinePathStyleFromUri(Utility.java:392)
2019-01-16 18:33:21.746 23922-24183/com.microsoft.photouploader W/System.err: at com.microsoft.azure.storage.StorageUri.(StorageUri.java:71)
2019-01-16 18:33:21.746 23922-24183/com.microsoft.photouploader W/System.err: at com.microsoft.azure.storage.core.PathUtility.appendPathToUri(PathUtility.java:123)
2019-01-16 18:33:21.747 23922-24183/com.microsoft.photouploader W/System.err: at com.microsoft.azure.storage.core.PathUtility.appendPathToUri(PathUtility.java:108)
2019-01-16 18:33:21.747 23922-24183/com.microsoft.photouploader W/System.err: at com.microsoft.azure.storage.blob.CloudBlobContainer.(CloudBlobContainer.java:205)
2019-01-16 18:33:21.747 23922-24183/com.microsoft.photouploader W/System.err: at com.microsoft.azure.storage.blob.CloudBlobClient.getContainerReference(CloudBlobClient.java:133)
2019-01-16 18:33:21.747 23922-24183/com.microsoft.photouploader W/System.err: at com.microsoft.photouploader.ImageManager.getContainer(ImageManager.java:57)
2019-01-16 18:33:21.748 23922-24183/com.microsoft.photouploader W/System.err: at com.microsoft.photouploader.ImageManager.UploadImage(ImageManager.java:63)
2019-01-16 18:33:21.748 23922-24183/com.microsoft.photouploader W/System.err: at com.microsoft.photouploader.MainActivity$4.run(MainActivity.java:101)
2019-01-16 18:33:21.748 23922-24183/com.microsoft.photouploader W/System.err: at java.lang.Thread.run(Thread.java:764)

Stop upload file in between?

How to stop the uploading blob, before the upload gets finished ?

In slow network uploading video file in azure server throwing Exception

I am trying to upload video file of 10-11 MB on azure server.It working fine on 4g or wifi network.But it is throwing below error on 3g or 2g network.

Getting exception :--

java.io.IOException: The client could not finish the operation within specified maximum execution timeout. Please see the cause for further information

Below is my code :--

`try {
        // Setup the cloud storage account.
        CloudStorageAccount account = CloudStorageAccount
                .parse("somestring");

        // Create a blob service client
        CloudBlobClient blobClient = account.createCloudBlobClient();
        BlobRequestOptions uploadOptions = new BlobRequestOptions();
        uploadOptions.setMaximumExecutionTimeInMs(300000);
        uploadOptions.setTimeoutIntervalInMs(100000);
        RetryPolicy retryPolicy=new RetryExponentialRetry(
                60000 /* minBackoff in milliseconds */,
                30000 /* delatBackoff in milliseconds */,
                180000 /* maxBackoff in milliseconds */,
                3 /* maxAttempts */);
        uploadOptions.setRetryPolicyFactory(retryPolicy);
        // Get a reference to a container
        // The container name must be lower case
        // Append a random UUID to the end of the container name so that
        // this sample can be run more than once in quick succession.
        CloudBlobContainer container = blobClient.getContainerReference("videos");

        // Create the container if it does not exist
        container.createIfNotExists();

        // Make the container public
        // Create a permissions object
        BlobContainerPermissions containerPermissions = new BlobContainerPermissions();
        OperationContext opContext = new OperationContext();
        StorageEventMultiCaster storageEventMultiCaster = new StorageEventMultiCaster<>();

        // Include public access in the permissions object
        containerPermissions
                .setPublicAccess(BlobContainerPublicAccessType.CONTAINER);
        storageEventMultiCaster.addListener(new StorageEvent<SendingRequestEvent>() {

            @Override
            public void eventOccurred(SendingRequestEvent eventArg) {

                // Do custom monitoring here...
            }
        });
        opContext.setSendingRequestEventHandler(storageEventMultiCaster);
        // Set the permissions on the container
        container.uploadPermissions(containerPermissions);
        CloudBlockBlob blob = container.getBlockBlobReference(file.getName());

        byte[] buffer = IOUtils.toByteArray(new FileInputStream(file));
        ByteArrayInputStream  inputStream = new ByteArrayInputStream(buffer);
        blob.upload(inputStream, inputStream.available(),null,uploadOptions,opContext);
        inputStream.close();
        String url = blob.getUri().toString();
                } catch (Throwable t) {

    }`

More information is available on https://stackoverflow.com/questions/47793540/in-slow-network-uploading-video-file-in-azure-server-throwing-timeoutexception/47793942