how to get customezing header

[jackwener]

phenomenon

send HTTP request with customezing header
(add by postman)
"id": "123456"

I achieve this function by the following code：

md, ok := metadata.FromIncomingContext(ctx)
fmt.Prlnln(md)

but output don't include customezing header kv

[johanbrandhorst]

Hi @jackwener, thanks for your issue. If you want to map a custom header, you can either prefix it with Grpc-metadata- and have it translated automatically:

"Grpc-metadata-id": "123456"

md, ok := metadata.FromIncomingContext(ctx)
// md["grpcgateway-id"] == "123456"

Or add an IncomingHeaderMatcher. We have a section on how to do that in the documentation: https://grpc-ecosystem.github.io/grpc-gateway/docs/customizingyourgateway.html.

[jackwener]

Hi @jackwener, thanks for your issue. If you want to map a custom header, you can either prefix it with Grpc-metadata- and have it translated automatically:

"Grpc-metadata-id": "123456"

md, ok := metadata.FromIncomingContext(ctx)
// md["grpcgateway-id"] == "123456"

Or add an IncomingHeaderMatcher. We have a section on how to do that in the documentation: https://grpc-ecosystem.github.io/grpc-gateway/docs/customizingyourgateway.html.

thanks, I'm sorry I didn't read the document carefully。
But it seem that translated automatically not in document.

[johanbrandhorst]

The first part is in the README: https://github.com/grpc-ecosystem/grpc-gateway#features