Just looking at this again, and it is quite straightforward of course:
public override AsyncServerStreamingCall<TResponse> AsyncServerStreamingCall
<TRequest, TResponse>(TRequest request, ClientInterceptorContext<TRequest,
TResponse> context, AsyncServerStreamingCallContinuation<TRequest, TResponse
> continuation)
{
context.Options.Headers.Add(CreateBearerTokenHeader("..."));
return continuation(request, context);
}
Just need to figure out how to catch a 401 response, refresh the token and
retry....
I've seen this one
<https://github.com/grpc/grpc/issues/15623#issuecomment-398487843>, but it
would be great to have a few more examples of interceptor usage,
particularly with streaming responses. Does anybody know of something?
On Thursday, 6 December 2018 11:02:26 UTC+1, Mark Nuttall-Smith wrote:
>
> Hi,
>
> I'd like to use a C# interceptor to transparently refresh an access token,
> similar to the System.Net.Http.DelegatingHandler here:
> https://github.com/IdentityModel/IdentityModel.OidcClient2/blob/v3/src/RefreshTokenDelegatingHandler.cs
>
> My question is: is it possible to set a header in the call metadata using
> the server streaming call interceptor?
>
> I also see the metadata interceptor, but this doesn't have the
> continuation, so I can't try and retry if I get a 401 unauthorized.
>
> public static CallInvoker Intercept(this CallInvoker invoker, Func<Metadata,
> Metadata> interceptor)
>
>
> TIA,
> Mark
>
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