[Event Hubs] Consumer Group setup

[zajacmp3]

Is your feature request related to a problem? Please describe.
Evaluation of javascript SDK revealed that there is no way to set consumer group for connection string.

Describe the solution you'd like
Add this feature

Describe alternatives you've considered
Routing messages to other event hub

Additional context
I found out that this was possible in the past. https://medium.com/@xaviergeerinck/sending-and-receiving-events-with-azure-event-hub-f92af9ad7fa0

[kurtzeborn]

Thank you for opening this issue! We are routing it to the appropriate team for follow up.

CC: @ramya-rao-a

[ramya-rao-a]

Thanks for reporting @zajacmp3

The link provided was using a library that I was not able to find on npmjs.com

The current library (@azure/event-hubs) does support the use of consumer group. But instead of passing it as a direct argument, you will have to pass it in the options argument

• receive
• receiveBatch

For both the above receive operations, the last parameter is of the type ReceiveOptions where you can pass the consumer group.

@ShivangiReja, please update our samples to pass the default consumer group in the options parameter

[zajacmp3]

Thanks, I missed that option while reviewing the interface... Must be blind :) Can be closed but obviously docs could be updated.

[ramya-rao-a]

No worries :) Happens to the best of us

We will use this issue to track not only updating of the samples, but to improve the README to include some code snippets as well

[ramya-rao-a]

With a23fafb, the samples now show how to pass the consumer group to the receive operation

The readme has been updated with the note on ReceiveOptions as well.

Thanks for reporting @zajacmp3