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");

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