Feature request: Enable middleware functionality for AppSyncResolver

[TonySherman]

Use case

The middleware functionality for the event handler REST APIs provides a really nice way to work with requests but the AppSyncResolver does not have the same API available to it.

Solution/User Experience

Ideally, the AppSyncResolver would have the same dev experience as the REST API middlewares:

app = AppSyncResolver(middlewares=[my_global_middleware])

@app.resolver(type_name="Query", field_name="getTodo", middlewares=[another_middleware])

Alternative solutions

No response

Acknowledgment

• This feature request meets Powertools for AWS Lambda (Python) Tenets
• Should this be considered in other Powertools for AWS Lambda languages? i.e. Java, TypeScript, and .NET

[dreamorosi]

Hi @TonySherman, thank you for your patience and apologies for the delay.

This feature is definitely something that we see value in, however at least for now we don't have concrete plans on implementing it.

Before making a decision on prioritization, we would like to get a better sense of customer demand.

For future readers, if you're reading this issue and you're interested in seeing it added to Powertools for AWS, please consider leaving a 👍 to the original post or leave a comment with your use case. Alternatively, if you're not comfortable doing so in public, you can also send us an email at aws-powertools-maintainers@amazon.com using your work email. Every influence counts!

[TonySherman]

@dreamorosi - Thanks for the response! I think I originally discussed this feature with Heitor a while back. We ended up utilizing pipeline resolvers instead. That seems to be the standard way to do these kind of things with AppSync. So if it helps gauge demand, I'm not even sure I would move from the pipeline resolvers to an AppSync resolver middleware solution within powertools at this time.

[dreamorosi]

Thank you for getting back to me so quickly.

I am glad Heitor was able to help you find a viable alternative. Based on this I will close the issue for now.

If you or any other customer needs this in the future, please feel free to open another issue referencing this one.