Is there a way of using Middleware without Isolated functions v4.0.1

[scott-david-walker]

Hi,
We've just done an upgrade from our Azure Functions V3 (.NET core 3.1) to V4 and we're unable to insert middleware. All the documentation says that this is possible but only when using Isolated functions. Is there a method to do this for functions not using the isolated process?

We found the Functions Filters but these are marked as obsolete.

Any advice on this is appreciated

[v-bbalaiagar]

Hi @scott-david-walker , Thank you for your feedback! We will check for the possibilities internally and update you with the findings.

[v-bbalaiagar]

Tagging @mathewc / @fabiocav , for more inputs

[mathewc]

Correct - middleware registration is only possible in the isolated model, details here. The Function Filters feature you reference is marked obsolete because we don't plan on carrying that model forward - see here, in favor of a more standard middleware approach.

[rafek1241]

Correct - middleware registration is only possible in the isolated model, details here. The Function Filters feature you reference is marked obsolete because we don't plan on carrying that model forward - see here, in favor of a more standard middleware approach.

Do you plan to make the standard middleware approach available in in-process hosting model?

[mathewc]

No we don't plan on extending the in-proc model with middleware capabilities.

[MisinformedDNA]

@mathewc The "more standard middleware approach" has been open since 2017. Can you update that thread with any progress and roadmap?