https://github.com/adaptant-labs/openfaas-dart-template/blob/master/template/dart/Dockerfile#L3

Please pin to a specific image tag.

https://github.com/adaptant-labs/openfaas-dart-template/blob/master/template/dart/Dockerfile#L1

Please use the latest watchdog version

https://github.com/adaptant-labs/openfaas-dart-template/blob/master/template/dart/Dockerfile#L27

Can you run pub get and pub get --offline in the same command to generate a single layer?

I would think so since you do it in Line 32

Is string/string the most appropriate type, or would you benefit from using some kind of stream or byte array?

https://github.com/adaptant-labs/openfaas-dart-template/blob/master/template/dart/function/lib/handler.dart#L1

I also wondered if dart might be better suited to the of-watchdog and using HTTP?

https://github.com/openfaas-incubator/of-watchdog#1-http-modehttp

https://github.com/adaptant-labs/openfaas-dart-template

Your readme should have some examples on how to add a dependency, I assume that's through the pubspec.yaml?

Having a clear-up on GitHub issues / PRs over 1 month old. Let's revisit as necessary. Thank you for the PR.