Azure/azure-sdk-for-js @azure/event-hubs_5.0.0-preview.3

on GitHub

2019-09-09 5.0.0-preview.3

Features

• Adds load-balancing capabilities to EventProcessor. EventProcesor will use the data from PartitionManager to regulate how many partitions it should read from.
  (PR #4839).
• Adds lastEnqueuedEventInfo property on EventHubConsumer. When the consumer is created with trackLastEnqueuedEventInfo set to true, the lastEnqueuedEventInfo
  field is updated everytime a message is received and provides details about the last enqueued event in the partition the EventHubConsumer is reading from.
  (PR #5036)
• Received event data will now expose systemProperties for message annotations set by the service. (PR #5008).
• Improved error messages when constructing an EventHubClient with an invalid connection string and Event Hub name combo. (PR #4899).
• Adds client-side type-checking for EventPosition static helper methods. (PR #5052).

Breaking changes

• The PartitionProcessor interface is now a class with default implementations of initialize, close, processEvents, and processError.
  (PR #4994).
  • Users should extend the PartitionProcessor class and override any of the methods that need custom logic.
  • All 4 methods now accept PartitionContext as the last parameter.
    PartitionContext contains information about the partition being processed, as well as the updateCheckpoint method that can be used to persist a checkpoint.
• The EventProcessor constructor was changed to no longer accept a PartitionProcessorFactory function that returns a PartitionProcessor.
  Instead, users should extend the PartitionProcessor class and pass the class (not an instance of the class) to the EventProcessor constructor.
  (PR #4994).