You are developing a C# service that processes inventory updates from a session-enabled Azure Service Bus queue named `inventory-queue`. The system must process updates for each store in strict chronological order. You need to implement the message retrieval and processing logic using the Azure.Messaging.ServiceBus SDK. Which sequence of actions must you perform to safely retrieve, process, and complete messages for a store session before releasing the session lock?
- 1Instantiate a ServiceBusClient object using the namespace connection string.
- 2Call AcceptNextSessionAsync on the ServiceBusClient to obtain a ServiceBusSessionReceiver.
- 3Call ReceiveMessageAsync on the ServiceBusSessionReceiver to retrieve the next available message.
- 4Process the retrieved message and call CompleteMessageAsync on the ServiceBusSessionReceiver.
- 5Call CloseAsync on the ServiceBusSessionReceiver to release the lock on the session.
Answer
To process session-enabled Service Bus messages, you first instantiate a ServiceBusClient, call AcceptNextSessionAsync to lock a session and retrieve a ServiceBusSessionReceiver, use that receiver to call ReceiveMessageAsync, complete the message by calling CompleteMessageAsync, and finally call CloseAsync on the receiver to release the session lock.
The correct order establishes a client connection, locks a session to obtain a session-specific receiver, retrieves a message, completes it after processing, and finally closes the receiver to release the session lock.
Step-by-Step Solution
Key Concept
Session-based message processing and lifecycle management with the Azure Service Bus SDK