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In this example i am Storing, Fetching, Peeking and Updating messages in Azure Queue Storage. To interact with Queue Storage, i've used the Azure.Storage.Queues NuGet package ans using dotnet secrets to hide the connection string from the source code.

To excute any commands from code to Queue storage, you will have to use the QueueClient class. When creating this class, you have to provide a connection string and a queue name. Then i'll ensure that this QueueClient exists remote, by running the CreateIfNotExists() method.

_queueClient.CreateIfNotExists();

To send/insert a message to a Queue, you'll have to use the SendMessage() method. This method takes a parameter of a string to insert as the body of the message.

_queueClient.SendMessage(message);

Fetching/peeking a message from a Queue can be accomplished with the PeekMessages(). This returns an array of the PeekedMessage type.

PeekedMessage[] peekedMessage = _queueClient.PeekMessages();

To update a message, you must first fetch/peek a message. Then you are able to use the UpdateMessage(). This method takes the MessageId, PopReceipt, the new message and a TimeSpan of invisibility for the message.

QueueMessage[] message = _queueClient.ReceiveMessages();
_queueClient.UpdateMessage(message[0].MessageId,
  message[0].PopReceipt,
  "Updated contents",
  TimeSpan.FromSeconds(60.0)
);