How to get UserAgent on server side

[dtjm]

How would I access the UserAgent of the client stream in my GRPC server? I can't seem to find any examples or interfaces that would allow this.

[MakMukhi]

It is added to the metadata which you can access from the context. https://github.com/grpc/grpc-go/blob/8b2e129857480cb0f07ef7d9d10b8b252c7ac984/transport/http_util.go#L208

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On Thu, Mar 2, 2017 at 10:58 AM, Sam Nguyen ***@***.***> wrote: How would I access the UserAgent of the client stream in my GRPC server? I can't seem to find any examples or interfaces that would allow this. — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub <#1100>, or mute the thread <https://github.com/notifications/unsubscribe-auth/ATtnRzde2G9VrhB_p5zjy5k-TceIsuJKks5rhxFmgaJpZM4MRY1p> .

[bharatnc]

Usually, the user-agent can be included on the client side and extracted from the server side. You can add a user-agent using the WithUserAgent("user-agent") function that grpc provides when making the dial connection.

server := grpc.Dial(grpc_server, WithUserAgent("user-agent",))

On the server side, you can extract it out from the incoming context meta-data:

mD, _ := metadata.FromIncomingContext(ctx)

where mD consists of key,val pairs and the way you would want to get hold of the user-agent is using its's key.

mD["user-agent"]