JSON/REST transcoding

[cwe1ss]

Hi, first, thanks for all the work you put into this library! I'm really looking forward to using it!!

Are there any plans to support the REST-like HTTP/JSON transcoding (https://cloud.google.com/endpoints/docs/grpc/transcoding ) via the http service annotations?

Having that together with OpenAPI/Swagger is a HUGE help during development when you can just call the API via JSON objects.

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2020/01/14 UPDATE: #167 (comment)

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2020/04/24 UPDATE:

• Introducing gRPC HTTP API blog post
• Microsoft.AspNetCore.Grpc.HttpApi is added to NuGet.org

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2020/12/04 UPDATE:

• Create JSON Web APIs from gRPC is on docs.microsoft.com
• Microsoft.AspNetCore.Grpc.Swagger is added to NuGet.org

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2022/02/16 UPDATE:

Thanks for all the interest in this feature. I'm happy to say that the .NET team is investing in JSON/REST transcoding. The aim is to publish this feature along with .NET 7.

Details:

• .NET 7 or later will be required
• Will continue to be a NuGet package
• I estimate a preview will ship in .NET 7 preview 3 or preview 4.
• A final version will ship with .NET 7 in November.

Development work is tracked at [EPIC] gRPC JSON transcoding.

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2022/11/11 UPDATE:

.NET 7 has shipped with gRPC JSON transcoding.

Documentation is available at: https://learn.microsoft.com/aspnet/core/grpc/json-transcoding

[JamesNK]

No plans to do it for 3.0. Beyond 3.0, it depends on how many people ask for it.

[JunTaoLuo]

We're keeping this issue open to solicit feedback and see how much demand there exists for this feature.

[jtattermusch]

FTR, regardless of whether this gets implemented or not, there are multiple proxies that currently offer this functionality:
https://github.com/grpc-ecosystem/grpc-gateway
https://www.envoyproxy.io/docs/envoy/latest/configuration/http_filters/grpc_json_transcoder_filter

[govis]

We need HTTP/JSON to gRPC transcoding so that same plumbing/service can be used to support REST and gRPC clients

[raz-canva]

This would be super helpful to be provided out of the box. As opposed to setting up grpc gateway

[Jonathan34]

Also interested. We use grpc gateway in golang but need the same functionality in dotnet as we are a big .net consumer.

[bobrot]

Also interested in this. While there are 3rd party tools that can do this, a simpler implementation is always better.

[Jonathan34]

if i had to start again, I'd probably use an envoy proxy instead similar to that: https://blog.envoyproxy.io/envoy-and-grpc-web-a-fresh-new-alternative-to-rest-6504ce7eb880
so at least I can have the same solution and transcoding for all the languages

[VladimirLuzhin]

That would be very cool since would allow smooth transition from JSON API to GRPC

[Bob9098-source]

We're ru

[JamesNK]

We have an experimental project that allows JSON/REST with gRPC here: https://github.com/aspnet/AspLabs/tree/master/src/GrpcHttpApi

The README.md at the link has details about how to use it and its status as a project.

[ElderJames]

Looking forward to this feature.