Azure Service Bus and Azure Queues are both messaging services provided by Azure, but they are designed for different use cases and have different features.
Azure Service Bus
Azure Service Bus is a fully managed enterprise messaging service that allows applications to send and receive messages between different components and services. It supports a wide range of messaging patterns, including point-to-point, publish-subscribe, and request-response. It also supports complex routing, filtering, and transformation of messages. It can also support message sessions, which allows for a message to be locked while it is being processed and ensure that the message is only processed by one consumer at a time.
Azure Queue
Azure Queue storage is a simple, scalable, and reliable message queuing service. It allows applications to insert and retrieve messages between different components and services. It is designed for simple scenarios where messages need to be stored and retrieved in a first-in, first-out (FIFO) manner. It also supports message sessions but it’s not as advanced as Service Bus.
Summary
In summary, Azure Service Bus is a more feature-rich messaging service that is designed for enterprise use cases, while Azure Queue storage is a simpler, more scalable messaging service that is designed for basic message queuing scenarios.
It’s worth noting that Azure Queue storage is a storage service while Azure Service Bus is a messaging service, they can be used together or separately depending on the use case, and Azure Queue storage can also be used as a trigger for Azure Functions.