Support gRPC-JSON transcoder

[quyenhoang96]

Description: For now, Envoy-Gateway has GRPCRoute. And in some contexts, We need to call from the client(maybe browser, mobile ...) to service. And it calls with HTTP protocol by Restfull. Can we consider about gRPC-JSON transcoder to make GRPCRoute can call with HTTP.

https://www.envoyproxy.io/docs/envoy/latest/configuration/http/http_filters/grpc_json_transcoder_filter

[zirain]

can EnvoyPatch help with this?

[quyenhoang96]

can EnvoyPatch help with this? Hi @zirain How the way can it help?

[arkodg]

@quyenhoang96 as a workaround you should be able to define any xds resource using https://gateway.envoyproxy.io/v0.5.0/user/envoy-patch-policy.html

[quyenhoang96]

In https://www.envoyproxy.io/docs/envoy/latest/configuration/http/http_filters/grpc_json_transcoder_filter . It need to bin file. How to workaround bin file to envoy-proxy can read it.

[arkodg]

assigning to @AliceProxy who is interested in implementing this one, thanks !

[github-actions[bot]]

This issue has been automatically marked as stale because it has not had activity in the last 30 days.

[arkodg]

there are two options here

• we can leverage the existing feature in envoy which is based on the user generating the static proto descriptor sets https://www.envoyproxy.io/docs/envoy/latest/configuration/http/http_filters/grpc_json_transcoder_filter#how-to-generate-proto-descriptor-set
• or rely on a reflection endpoint https://github.com/envoyproxy/envoy/pull/23061 (Envoy PR needs to be taken forward)

[github-actions[bot]]

This issue has been automatically marked as stale because it has not had activity in the last 30 days.

[github-actions[bot]]

This issue has been automatically marked as stale because it has not had activity in the last 30 days.