Quarkus lambda live coding revamp

[William Burke]

Here's the PR.  Revamped Quarkus Lambda extensions a bit.

PR:  https://github.com/quarkusio/quarkus/pull/19108

Lambda extensions have been revamped to support live coding and improved testing. A special test library is no longer needed to be added to start testing with lambdas. Lambda extension will automatically start a mock AWS Lambda event server that can be invoked upon using HTTP. This mock server is available in dev mode and tests. The quarkus lambda poll loop is now always started for test and dev mode and is driven by the mock server.

For quarkus-amazon-lambda-http and -rest, the mock server will convert HTTP requests to the corresponding API Gateway event type so that the quarkus lambda poll loop can process them and execute quarkus lambda http/rest extension code paths. For http/rest you can also send raw events to http://localhost:8081/_lambda_

• Tests and example now use Rest Assured
• quarkus-test-amazon-lambda library has been deprecated. Support for this library is backward compatible and if included in test classpath event server will not start.

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Bill Burke

Red Hat

[Stuart Douglas]

Is this ok to go into a hardening release or should it wait till 2.3?

Stuart

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[William Burke]

I don't know.  Its pretty new so I guess wait until 2.3?

[Alexey Loubyansky]

Just to remind the release schedule, in case it helps, the 2.2.0.Final core release date is August 25th.

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[Loïc MATHIEU]

Hi Bill,

I wonder if this mock event server could be made amazon agnostic (or if we can extract most of the code to an abstract class amazon agnostic) so we can reuse it in other function extensions (Azure, Google Cloud, generic Cloud Event, ...) ?

Regards,

Loïc

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[William Burke]

FYI, the quarkus amazon extension has a poll loop that polls the event server for events.  This is how lambda does things.

We don't have a poll loop for azure, don't know about google cloud, so, no, I don't think its reusable.  For HTTP, the HTTP->API Gateway event conversion is AWS specific.  Even so, its not a lot of code anyways.  Really simple stuff.

[William Burke]

Would be cool to get a review and/or approval on this.  On vacation until next Monday, so no rush:

https://github.com/quarkusio/quarkus/pull/19119