SubscribeOptions interface
Options to configure the subscribe
method on the EventHubConsumerClient
.
For example, { maxBatchSize: 20, maxWaitTimeInSeconds: 120, startPosition: { sequenceNumber: 123 } }
Properties
max |
The number of events to request per batch |
max |
The maximum amount of time to wait to build up the requested message count before passing the data to user code for processing. If not provided, it defaults to 60 seconds. |
owner |
The owner level to use as this subscription subscribes to partitions. |
prefetch |
The count of events requested eagerly and queued without regard to whether a read was requested. |
skip |
Option to disable the client from running JSON.parse() on the message body when receiving the message. Not applicable if the message was sent with AMQP body type value or sequence. Use this option when you prefer to work directly with the bytes present in the message body than have the client attempt to parse it. |
start |
The event position in a partition to start receiving events from if no checkpoint is found. Pass a map of partition id to position if you would like to use different starting position for each partition. |
tracing |
Options for configuring tracing. |
track |
Indicates whether or not the consumer should request information on the last enqueued event on its associated partition, and track that information as events are received. When information about the partition's last enqueued event is being tracked, each event received from the Event Hubs service will carry metadata about the partition that it otherwise would not. This results in a small amount of additional network bandwidth consumption that is generally a favorable trade-off when considered against periodically making requests for partition properties using the Event Hub client. |
Property Details
maxBatchSize
The number of events to request per batch
maxBatchSize?: number
Property Value
number
maxWaitTimeInSeconds
The maximum amount of time to wait to build up the requested message count before passing the data to user code for processing. If not provided, it defaults to 60 seconds.
maxWaitTimeInSeconds?: number
Property Value
number
ownerLevel
The owner level to use as this subscription subscribes to partitions.
ownerLevel?: number
Property Value
number
prefetchCount
The count of events requested eagerly and queued without regard to whether a read was requested.
prefetchCount?: number
Property Value
number
skipParsingBodyAsJson
Option to disable the client from running JSON.parse() on the message body when receiving the message. Not applicable if the message was sent with AMQP body type value or sequence. Use this option when you prefer to work directly with the bytes present in the message body than have the client attempt to parse it.
skipParsingBodyAsJson?: boolean
Property Value
boolean
startPosition
The event position in a partition to start receiving events from if no checkpoint is found. Pass a map of partition id to position if you would like to use different starting position for each partition.
startPosition?: EventPosition | {[partitionId: string]: EventPosition}
Property Value
EventPosition | {[partitionId: string]: EventPosition}
tracingOptions
Options for configuring tracing.
tracingOptions?: OperationTracingOptions
Property Value
trackLastEnqueuedEventProperties
Indicates whether or not the consumer should request information on the last enqueued event on its associated partition, and track that information as events are received.
When information about the partition's last enqueued event is being tracked, each event received from the Event Hubs service will carry metadata about the partition that it otherwise would not. This results in a small amount of additional network bandwidth consumption that is generally a favorable trade-off when considered against periodically making requests for partition properties using the Event Hub client.
trackLastEnqueuedEventProperties?: boolean
Property Value
boolean