amazon-kinesis-client
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Retrieving shard consumer's current lease's hash range key
Is it possible to retrieve current lease's hash range key in the initialize
lifecycle method of KCL consumer?
The only way I could find is through injecting LeaseCoordinator
dependency in the ShardRecordProcessor
implementation. This ends up creating a circular dependency during dependency injection.
LeaseCoordinator
<- Schedulor
ConfigBuilder
<- ShardRecordFactory
<- ShardRecordProcessor
<- LeaseCoordinator
.
Could you explain the use case that you are looking for in getting the hash key range for a lease in the initialize function?
I have a use case where I'm pushing data to Kinesis streams and partitioning my data deterministically.
I'm reading the data using KCL library. In my use case, I have metadata stored in a Datastore partitioned over range of hash keys for Kinesis Shards. I want to selectively load the metadata for a specific shard using the shard's hash range key during initialize function of a Shard consumer.