Comments (7)
It's there. For non-streaming RPCs (e.g. https://github.com/grpc/grpc-go/blob/master/examples/route_guide/server/server.go#L75) it is the first arg. For streaming RPCs (e.g. https://github.com/grpc/grpc-go/blob/master/examples/route_guide/server/server.go#L86) it is available by calling the Context
method on the stream value.
from grpc-go.
Ah. I only saw the steaming examples. Thanks for this 👍
from grpc-go.
Reopening this for a clarification.
On the client, if I do this:
ctx = ctx.WithValue(someKey, someValue)
And on the server:
value := ctx.Value(someKey)
Should I not expect to get the value back?
from grpc-go.
You should not expect that. You need to use the metadata mechanism.
from grpc-go.
I can see that a deadline set on the client gets propagated to the server. Any reason for excluding the values (apart from serialization/deserialization headaches) ?
from grpc-go.
Those are a bit more than headaches. They are major design issues. And there's only a limited set of context values that make sense to transit across machines transparently.
from grpc-go.
I just saw https://godoc.org/google.golang.org/grpc/metadata
Thanks for the clarification though :)
from grpc-go.
Related Issues (20)
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from grpc-go.