private HttpRequestMessage CreateHttpRequestMessage()
{
var message = new HttpRequestMessage(HttpMethod.Post, _uri);
message.Version = new Version(2, 0);
// User agent is optional but recommended
message.Headers.UserAgent.Add(GrpcProtocolConstants.UserAgentHeader);
// TE is required by some servers, e.g. C Core
// A missing TE header results in servers aborting the gRPC call
message.Headers.TE.Add(GrpcProtocolConstants.TEHeader);
if (Options.Headers != null && Options.Headers.Count > 0)
{
foreach (var entry in Options.Headers)
{
// Deadline is set via CallOptions.Deadline
if (entry.Key == GrpcProtocolConstants.TimeoutHeader)
{
continue;
}
var value = entry.IsBinary ? Convert.ToBase64String(entry.ValueBytes) : entry.Value;
message.Headers.Add(entry.Key, value);
}
}
if (_timeout != null)
{
message.Headers.Add(GrpcProtocolConstants.TimeoutHeader, GrpcProtocolHelpers.EncodeTimeout(Convert.ToInt64(_timeout.Value.TotalMilliseconds)));
}
return(message);
}
private HttpRequestMessage CreateHttpRequestMessage(TimeSpan?timeout)
{
var message = new HttpRequestMessage(HttpMethod.Post, _grpcMethodInfo.CallUri);
message.Version = GrpcProtocolConstants.Http2Version;
#if NET5_0
message.VersionPolicy = HttpVersionPolicy.RequestVersionOrHigher;
#endif
// Set raw headers on request using name/values. Typed headers allocate additional objects.
var headers = message.Headers;
// User agent is optional but recommended.
headers.TryAddWithoutValidation(GrpcProtocolConstants.UserAgentHeader, GrpcProtocolConstants.UserAgentHeaderValue);
// TE is required by some servers, e.g. C Core.
// A missing TE header results in servers aborting the gRPC call.
headers.TryAddWithoutValidation(GrpcProtocolConstants.TEHeader, GrpcProtocolConstants.TEHeaderValue);
headers.TryAddWithoutValidation(GrpcProtocolConstants.MessageAcceptEncodingHeader, Channel.MessageAcceptEncoding);
// https://github.com/grpc/proposal/blob/master/A6-client-retries.md#exposed-retry-metadata
if (_attemptCount > 1)
{
headers.TryAddWithoutValidation(GrpcProtocolConstants.RetryPreviousAttemptsHeader, (_attemptCount - 1).ToString(CultureInfo.InvariantCulture));
}
if (Options.Headers != null && Options.Headers.Count > 0)
{
foreach (var entry in Options.Headers)
{
if (entry.Key == GrpcProtocolConstants.TimeoutHeader)
{
// grpc-timeout is set via CallOptions.Deadline
continue;
}
else if (entry.Key == GrpcProtocolConstants.CompressionRequestAlgorithmHeader)
{
// grpc-internal-encoding-request is used in the client to set message compression.
// 'grpc-encoding' is sent even if WriteOptions.Flags = NoCompress. In that situation
// individual messages will not be written with compression.
headers.TryAddWithoutValidation(GrpcProtocolConstants.MessageEncodingHeader, entry.Value);
}
else
{
GrpcProtocolHelpers.AddHeader(headers, entry);
}
}
}
if (timeout != null)
{
headers.TryAddWithoutValidation(GrpcProtocolConstants.TimeoutHeader, GrpcProtocolHelpers.EncodeTimeout(timeout.Value.Ticks / TimeSpan.TicksPerMillisecond));
}
return(message);
}
private HttpRequestMessage CreateHttpRequestMessage(TimeSpan?timeout)
{
var message = new HttpRequestMessage(HttpMethod.Post, _grpcMethodInfo.CallUri);
message.Version = HttpVersion.Version20;
// Set raw headers on request using name/values. Typed headers allocate additional objects.
var headers = message.Headers;
// User agent is optional but recommended.
headers.Add(GrpcProtocolConstants.UserAgentHeader, GrpcProtocolConstants.UserAgentHeaderValue);
// TE is required by some servers, e.g. C Core.
// A missing TE header results in servers aborting the gRPC call.
headers.Add(GrpcProtocolConstants.TEHeader, GrpcProtocolConstants.TEHeaderValue);
headers.Add(GrpcProtocolConstants.MessageAcceptEncodingHeader, Channel.MessageAcceptEncoding);
if (Options.Headers != null && Options.Headers.Count > 0)
{
foreach (var entry in Options.Headers)
{
if (entry.Key == GrpcProtocolConstants.TimeoutHeader)
{
// grpc-timeout is set via CallOptions.Deadline
continue;
}
else if (entry.Key == GrpcProtocolConstants.CompressionRequestAlgorithmHeader)
{
// grpc-internal-encoding-request is used in the client to set message compression.
// 'grpc-encoding' is sent even if WriteOptions.Flags = NoCompress. In that situation
// individual messages will not be written with compression.
headers.Add(GrpcProtocolConstants.MessageEncodingHeader, entry.Value);
}
else
{
GrpcProtocolHelpers.AddHeader(headers, entry);
}
}
}
if (timeout != null)
{
headers.Add(GrpcProtocolConstants.TimeoutHeader, GrpcProtocolHelpers.EncodeTimeout(timeout.Value.Ticks / TimeSpan.TicksPerMillisecond));
}
return(message);
}
private HttpRequestMessage CreateHttpRequestMessage()
{
var message = new HttpRequestMessage(HttpMethod.Post, _uri);
message.Version = new Version(2, 0);
// User agent is optional but recommended
message.Headers.UserAgent.Add(GrpcProtocolConstants.UserAgentHeader);
// TE is required by some servers, e.g. C Core
// A missing TE header results in servers aborting the gRPC call
message.Headers.TE.Add(GrpcProtocolConstants.TEHeader);
message.Headers.Add(GrpcProtocolConstants.MessageAcceptEncodingHeader, GrpcProtocolConstants.MessageAcceptEncodingValue);
if (Options.Headers != null && Options.Headers.Count > 0)
{
foreach (var entry in Options.Headers)
{
if (entry.Key == GrpcProtocolConstants.TimeoutHeader)
{
// grpc-timeout is set via CallOptions.Deadline
continue;
}
else if (entry.Key == GrpcProtocolConstants.CompressionRequestAlgorithmHeader)
{
// grpc-internal-encoding-request is used in the client to set message compression
message.Headers.Add(GrpcProtocolConstants.MessageEncodingHeader, entry.Value);
}
else
{
AddHeader(message.Headers, entry);
}
}
}
if (_timeout != null)
{
message.Headers.Add(GrpcProtocolConstants.TimeoutHeader, GrpcProtocolHelpers.EncodeTimeout(Convert.ToInt64(_timeout.Value.TotalMilliseconds)));
}
return(message);
}