KaneAI - World’s First E2E Software Testing Agent.Signup for Private Beta Join TestMu Conference

How to use CreateContainerIfNotExistsAsync method of PetImages.Storage.BlobContainer class

Best Coyote code snippet using PetImages.Storage.BlobContainer.CreateContainerIfNotExistsAsync

ImageController.cs

Source:ImageController.cs

...40            // We upload the image to Azure Storage, before adding an entry to Cosmos DB41            // so that it is guaranteed to be there when user does a GET request.42            // Note: we're calling CreateOrUpdateBlobAsync because Azure Storage doesn't43            // have a create-only API.44            await this.BlobContainer.CreateContainerIfNotExistsAsync(accountName);45            await this.BlobContainer.CreateOrUpdateBlobAsync(accountName, image.Name, image.Content);46            try47            {48                imageItem = await this.ImageContainer.CreateItem(imageItem);49            }50            catch (DatabaseItemAlreadyExistsException)51            {52                return this.Conflict();53            }54            catch (DatabaseException)55            {56                // We handle an exception thrown by Cosmos DB layer, perhaps due to some57                // intermittent failure, by cleaning up the image to not waste resources.58                await this.BlobContainer.DeleteBlobIfExistsAsync(accountName, image.Name);59                return this.StatusCode(503);60            }61            return this.Ok(imageItem.ToImage());62        }63        /// <summary>64        /// Scenario 2 - Fixed CreateImageAsync version.65        /// </summary>66        [HttpPost]67        public async Task<ActionResult<Image>> CreateImageAsyncFixed(string accountName, Image image)68        {69            if (!await StorageHelper.DoesItemExist<AccountItem>(this.AccountContainer, partitionKey: accountName, id: accountName))70            {71                return this.NotFound();72            }73            var imageItem = image.ToItem();74            await this.BlobContainer.CreateContainerIfNotExistsAsync(accountName);75            await this.BlobContainer.CreateOrUpdateBlobAsync(accountName, image.Name, image.Content);76            try77            {78                imageItem = await this.ImageContainer.CreateItem(imageItem);79            }80            catch (DatabaseItemAlreadyExistsException)81            {82                return this.Conflict();83            }84            // We don't delete the blob in the controller; orphaned blobs (i.e., blobs with no corresponding85            // Cosmos DB entry) are cleaned up asynchronously by a background "garbage collector" worker86            // (not shown in this sample).87            return this.Ok(imageItem.ToImage());88        }89        [HttpGet]90        public async Task<ActionResult<byte[]>> GetImageContentsAsync(string accountName, string imageName)91        {92            if (!await StorageHelper.DoesItemExist<AccountItem>(this.AccountContainer, partitionKey: accountName, id: accountName))93            {94                return this.NotFound();95            }96            ImageItem imageItem;97            try98            {99                imageItem = await this.ImageContainer.GetItem<ImageItem>(partitionKey: imageName, id: imageName);100            }101            catch (DatabaseItemDoesNotExistException)102            {103                return this.NotFound();104            }105            if (!await this.BlobContainer.ExistsBlobAsync(accountName, imageItem.StorageName))106            {107                return this.NotFound();108            }109            return this.Ok(await this.BlobContainer.GetBlobAsync(accountName, imageItem.StorageName));110        }111        [HttpGet]112        public async Task<ActionResult<byte[]>> GetImageThumbnailAsync(string accountName, string imageName)113        {114            if (!await StorageHelper.DoesItemExist<AccountItem>(this.AccountContainer, partitionKey: accountName, id: accountName))115            {116                return this.NotFound();117            }118            ImageItem imageItem;119            try120            {121                imageItem = await this.ImageContainer.GetItem<ImageItem>(partitionKey: imageName, id: imageName);122            }123            catch (DatabaseItemDoesNotExistException)124            {125                return this.NotFound();126            }127            var containerName = accountName + Constants.ThumbnailContainerNameSuffix;128            var blobName = imageItem.StorageName + Constants.ThumbnailSuffix;129            if (!await this.BlobContainer.ExistsBlobAsync(containerName, blobName))130            {131                return this.NotFound();132            }133            return this.Ok(await this.BlobContainer.GetBlobAsync(containerName, blobName));134        }135        /// <summary>136        /// Scenario 3 - Buggy CreateOrUpdateImageAsync version.137        /// </summary>138        [HttpPut]139        public async Task<ActionResult<Image>> CreateOrUpdateImageAsync(string accountName, Image image)140        {141            if (!await StorageHelper.DoesItemExist<AccountItem>(this.AccountContainer, partitionKey: accountName, id: accountName))142            {143                return this.NotFound();144            }145            var imageItem = image.ToItem();146            await this.BlobContainer.CreateContainerIfNotExistsAsync(accountName);147            await this.BlobContainer.CreateOrUpdateBlobAsync(accountName, image.Name, image.Content);148            imageItem = await this.ImageContainer.UpsertItem(imageItem);149            await this.MessagingClient.SubmitMessage(new GenerateThumbnailMessage()150            {151                AccountName = accountName,152                ImageStorageName = image.Name153            });154            return this.Ok(imageItem.ToImage());155        }156        /// <summary>157        /// Scenario 3 - Fixed CreateOrUpdateImageAsync version.158        /// </summary>159        [HttpPut]160        public async Task<ActionResult<Image>> CreateOrUpdateImageAsyncFixed(string accountName, Image image)161        {162            if (!await StorageHelper.DoesItemExist<AccountItem>(this.AccountContainer, partitionKey: accountName, id: accountName))163            {164                return this.NotFound();165            }166            var imageItem = image.ToItem();167            var uniqueId = Guid.NewGuid().ToString();168            imageItem.StorageName = uniqueId;169            await this.BlobContainer.CreateContainerIfNotExistsAsync(accountName);170            await this.BlobContainer.CreateOrUpdateBlobAsync(accountName, imageItem.StorageName, image.Content);171            imageItem = await this.ImageContainer.UpsertItem(imageItem);172            await this.MessagingClient.SubmitMessage(new GenerateThumbnailMessage()173            {174                AccountName = accountName,175                ImageStorageName = imageItem.StorageName176            });177            return this.Ok(imageItem.ToImage());178        }179    }180}...

GenerateThumbnailWorker.cs

Source:GenerateThumbnailWorker.cs

...21            var imageContents = await this.BlobContainer.GetBlobAsync(accountName, imageStorageName);22            var thumbnail = GenerateThumbnail(imageContents);23            var containerName = accountName + Constants.ThumbnailContainerNameSuffix;24            var blobName = imageStorageName + Constants.ThumbnailSuffix;25            await this.BlobContainer.CreateContainerIfNotExistsAsync(containerName);26            await this.BlobContainer.CreateOrUpdateBlobAsync(containerName, blobName, thumbnail);27        }28        /// <summary>29        /// Dummy implementation of GenerateThumbnail that returns the same bytes as the image.30        /// </summary>31        private static byte[] GenerateThumbnail(byte[] imageContents) => imageContents;32    }33}...

CreateContainerIfNotExistsAsync

Using AI Code Generation

1var storageAccount = CloudStorageAccount.Parse(StorageConnectionString);2var blobClient = storageAccount.CreateCloudBlobClient();3var container = blobClient.GetContainerReference("petimages");4await container.CreateIfNotExistsAsync();5var blockBlob = container.GetBlockBlobReference("1.png");6using (var fileStream = System.IO.File.OpenRead(@"C:\Users\Public\Pictures\Sample Pictures\1.png"))7{8    await blockBlob.UploadFromStreamAsync(fileStream);9}10var storageAccount = CloudStorageAccount.Parse(StorageConnectionString);11var blobClient = storageAccount.CreateCloudBlobClient();12var container = blobClient.GetContainerReference("petimages");13await container.CreateIfNotExistsAsync();14var blockBlob = container.GetBlockBlobReference("2.png");15using (var fileStream = System.IO.File.OpenRead(@"C:\Users\Public\Pictures\Sample Pictures\2.png"))16{17    await blockBlob.UploadFromStreamAsync(fileStream);18}19var storageAccount = CloudStorageAccount.Parse(StorageConnectionString);20var blobClient = storageAccount.CreateCloudBlobClient();21var container = blobClient.GetContainerReference("petimages");22await container.CreateIfNotExistsAsync();23var blockBlob = container.GetBlockBlobReference("3.png");24using (var fileStream = System.IO.File.OpenRead(@"C:\Users\Public\Pictures\Sample Pictures\3.png"))25{26    await blockBlob.UploadFromStreamAsync(fileStream);27}28var storageAccount = CloudStorageAccount.Parse(StorageConnectionString);29var blobClient = storageAccount.CreateCloudBlobClient();30var container = blobClient.GetContainerReference("petimages");31await container.CreateIfNotExistsAsync();32var blockBlob = container.GetBlockBlobReference("4.png");33using (var fileStream = System.IO.File.OpenRead(@"C:\Users\Public\Pictures\Sample Pictures\4.png"))34{35    await blockBlob.UploadFromStreamAsync(fileStream);36}37var storageAccount = CloudStorageAccount.Parse(Storage

CreateContainerIfNotExistsAsync

Using AI Code Generation

1PetImages.Storage.BlobContainer blobContainer = new PetImages.Storage.BlobContainer();2await blobContainer.CreateContainerIfNotExistsAsync("petimages");3PetImages.Storage.BlobContainer blobContainer = new PetImages.Storage.BlobContainer();4await blobContainer.GetBlobReference("petimages", "dog.jpg");5PetImages.Storage.BlobContainer blobContainer = new PetImages.Storage.BlobContainer();6await blobContainer.UploadBlobAsync("petimages", "dog.jpg", "C:\\Users\\Public\\Pictures\\Sample Pictures\\dog.jpg");7PetImages.Storage.BlobContainer blobContainer = new PetImages.Storage.BlobContainer();8await blobContainer.DownloadBlobAsync("petimages", "dog.jpg", "C:\\Users\\Public\\Pictures\\Sample Pictures\\dog.jpg");9PetImages.Storage.BlobContainer blobContainer = new PetImages.Storage.BlobContainer();10await blobContainer.DeleteBlobAsync("petimages", "dog.jpg");11PetImages.Storage.BlobContainer blobContainer = new PetImages.Storage.BlobContainer();12await blobContainer.DeleteContainerAsync("petimages");13PetImages.Storage.BlobContainer blobContainer = new PetImages.Storage.BlobContainer();14await blobContainer.ListBlobsAsync("petimages");15PetImages.Storage.BlobContainer blobContainer = new PetImages.Storage.BlobContainer();16await blobContainer.ListContainersAsync();17PetImages.Storage.BlobContainer blobContainer = new PetImages.Storage.BlobContainer();18await blobContainer.GetBlobSasUriAsync("petimages", "dog.jpg");

Automation Testing Tutorials

Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.