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Support Lambda Durable Executions #2216
Description
Describe the feature
Lambda now supports durable executions. Which allows stateful, durable workflows to be defined using application code. It has launched with Python/NodeJS support, but it would be great to add support for .NET as well.
Use Case
Step Functions is a great product, but it's a proprietary language. Being able to define durable workflows in pure .NET code would remove the dependency on ASL, and bring .NET in line with other runtimes from a feature parity perspective.
Proposed Solution
Happy to support implementation if details on the internals can be shared.
Other Information
No response
Acknowledgements
- I may be able to implement this feature request
- This feature might incur a breaking change
AWS .NET SDK and/or Package version used
N/A
Targeted .NET Platform
N/A
Operating System and version
N/A
Reacted by Vladimir Shchur, Jason DiBianco, madhub, Christian Schneider, Jake Scott, kampar-fen, yvenezianos, Brendon, oleksandrchepulskyi and Erik Karlsson
Activity
normj commentedon Dec 2, 2025
@jeastham1993 Agreed on wanting to get .NET support. Our current focus has been getting .NET included with the Lambda Managed Instance and also getting .NET 10 support completed. This is high on my list through of what I want us working on.
jeastham1993 commentedon Dec 2, 2025
@normj totally understand the prioritisation, figured you'd have other stuff going on. Would love to see this in .NET though 👍 if I can help in any way ping me.
GarrettBeatty commentedon May 14, 2026
just an update on this issue, i have started working on it!
irunjic commentedon May 23, 2026
@GarrettBeatty do you know if Lambda Durable Executions will also be supported when using Amazon.Lambda.AspNetCoreServer.Hosting?
GarrettBeatty commentedon May 29, 2026
@irunjic Currently there isn't a plan to support
Amazon.Lambda.AspNetCoreServer.Hosting. Can you expand on your use case more?irunjic commentedon May 29, 2026
We are using AspNetCore Hosting library in all of our projects to simplify local dev setup. Durable execution would allow us to use the same codebase for local and lambda environments. Local environment would use a simple mock to have 1 Lambda (orchestrator) invoke multiple Parallel Lambdas.
GarrettBeatty commentedon May 29, 2026
@irunjic thanks for the information. There is some technical details we would need to figure out for this. I will talk with the team and see where we can prioritize
Amazon.Lambda.AspNetCoreServer.HostingsupportGarrettBeatty commentedon Jun 11, 2026
Hi all, we have released the first preview of durable executions which you can read in this announcement - #2418. For all new questions/discussion please use #2418! We would love to hear your feedback!
github-actions commentedon Jun 11, 2026
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