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feat(3102):update DefaultHeaderMatcher function comment docs #3114

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Jan 12, 2023
Merged

feat(3102):update DefaultHeaderMatcher function comment docs #3114

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feat(3102):Update comment docs
li31727 Jan 9, 2023
229fc06
feat(3102):change comment docs
li31727 Jan 10, 2023
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feat(3102):change comment docs1
li31727 Jan 10, 2023
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5 changes: 3 additions & 2 deletions runtime/mux.go
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Original file line number Diff line number Diff line change
Expand Up @@ -101,8 +101,9 @@ func SetQueryParameterParser(queryParameterParser QueryParameterParser) ServeMux
type HeaderMatcherFunc func(string) (string, bool)

// DefaultHeaderMatcher is used to pass http request headers to/from gRPC context. This adds permanent HTTP header
// keys (as specified by the IANA) to gRPC context with grpcgateway- prefix. HTTP headers that start with
// 'Grpc-Metadata-' are mapped to gRPC metadata after removing prefix 'Grpc-Metadata-'.
// keys (as specified by the IANA, e.g: Accept, Cookie, Host) to the gRPC metadata with the grpcgateway- prefix. If you want to know which headers are considered permanent, you can view the isPermanentHTTPHeader function.
// HTTP headers that start with 'Grpc-Metadata-' are mapped to gRPC metadata after removing the prefix 'Grpc-Metadata-'.
// Other headers are not added to the gRPC metadata.
func DefaultHeaderMatcher(key string) (string, bool) {
switch key = textproto.CanonicalMIMEHeaderKey(key); {
case isPermanentHTTPHeader(key):
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