github.com/searKing/golang/go@v1.2.117/net/mux/matcher_grpc.go (about)

     1  // Copyright 2020 The searKing Author. All rights reserved.
     2  // Use of this source code is governed by a BSD-style
     3  // license that can be found in the LICENSE file.
     4  
     5  package mux
     6  
     7  import (
     8  	"strings"
     9  
    10  	"golang.org/x/net/http2/hpack"
    11  )
    12  
    13  // GRPC parses the frame header of the first frame to detect whether the
    14  // connection is an HTTP2 connection.
    15  func GRPC() MatcherFunc {
    16  	return HTTP2HeaderFieldValue(false, strings.EqualFold, hpack.HeaderField{
    17  		Name:  "Content-Type",
    18  		Value: "application/grpc",
    19  	})
    20  }