Currently, DurableClient.getStatusBy() accepts an filters parameter object (type OrchestrationFilter). This filters object have properties: createdTimeFrom, createdTimeTo and runtimeStatus.
My request is add another property instanceIdPrefix to these options. Setting it to a string should filter the instances that have InstanceID starting with provided prefix.
This would allow faster retrieval of orchestrations and sub-orchestrations that have same (pre-set) prefix.
Reference: The functionality to omit output seems to be available in DurableTask HTTP API:
https://learn.microsoft.com/en-us/azure/azure-functions/durable/durable-functions-http-api#get-all-instances-status