Added support for more WKT

[mayankcpdixit]

Adding support for more well known types.
Adding support for wrappers (google.protbuf.wrappers)
Adding Example for using StringValue protobuf wrapper in url template option

Should fix: #808

[johanbrandhorst]

Thanks for putting this together! I don't think we need to add the greeter server or greeter proxy since we can't run those in CI (at least not right now). Otherwise looks good!

[mayankcpdixit]

@johanbrandhorst Right. Removed those.

[johanbrandhorst]

It looks like the generated files don't build, can you see if we can fix the signature of the new functions?

[johanbrandhorst]

This is great, thanks! I will merge once the build has finished successfully :).

[johanbrandhorst]

Oops, looks like the Bazel files are out of date: https://circleci.com/gh/grpc-ecosystem/grpc-gateway/736. Could you run the following command to update everything please?

$ docker run -itv $(pwd):/grpc-gateway -w /grpc-gateway --entrypoint /bin/bash --rm \
    l.gcr.io/google/bazel -c 'bazel run :gazelle_fix; bazel run :buildifier'

From https://github.com/grpc-ecosystem/grpc-gateway/blob/master/CONTRIBUTING.md#i-want-to-regenerate-the-files-after-making-changes.

[johanbrandhorst]

On a sidenote: @drigz, how often will unrelated user PRs be failing like this? Is there some way we can just update these manually and not have it fail the build?

[drigz]

@johanbrandhorst Created #817 to avoid noise on this PR.

[johanbrandhorst]

That bazel fix command is really impressive, wow! I'll merge this once the build finishes :).

[codecov-io]

Codecov Report

Merging #816 into master will decrease coverage by 0.4%.
The diff coverage is 0%.

@@            Coverage Diff             @@
##           master     #816      +/-   ##
==========================================
- Coverage    53.3%   52.89%   -0.41%     
==========================================
  Files          30       30              
  Lines        3371     3397      +26     
==========================================
  Hits         1797     1797              
- Misses       1399     1425      +26     
  Partials      175      175

Impacted Files	Coverage Δ
protoc-gen-grpc-gateway/descriptor/types.go	41.08% <ø> (ø)	⬆️
runtime/convert.go	13.75% <0%> (-2.67%)	⬇️

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[mayankcpdixit]

That bazel fix command is really impressive, wow! I'll merge this once the build finishes :).

Agree. It finished smoothly though it took really long. I felt there should be easier way so I don't have to download heavy docker images. Maybe use multistage build. idk. just thinking out loud.

[johanbrandhorst]

Thank you for your contribution!

[mayankcpdixit]

No problem @johanbrandhorst . I'm using it for one of my work item. So I had to make it work anyway.