Add the ability to create multi attribute correlation strategy #40
Description
What would you like to be added?
Add the possibility to create a correlation key based on multiple context attributes.
Altough this is already feasible using runtime expressions, it would be a clear quality of life improvement for users who do not want to write needlessly complex expressions to achieve a very common use-case (see additional info).
Proposal(s):
No response
Alternative(s):
No response
Additional info:
As pointed out by @clemensv during the Cloud Shapes presentation of the 02/14/25 in the CNCF Serverless WG, the originating object of a CloudEvents is typically described by a combination of source and subject.
For example, a product Toothpaste sold in a store located in Avenue Louise would be identified by its source, https;//example.store.io/avenue-louise and by its subject colgate-toothpaste.
In CloudShapes, this should result in the composite correlation key https;//example.store.io/avenue-louise/colgate-toothpaste
Community Notes
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- If you are interested to work on this feature, please leave a comment.