prysm-pulse/api/grpc/parameters.go

package grpc

// CustomErrorMetadataKey is the name of the metadata key storing additional error information.
// Metadata value is expected to be a byte-encoded JSON object.
const CustomErrorMetadataKey = "Custom-Error"

// HttpCodeMetadataKey is the key to use when setting custom HTTP status codes in gRPC metadata.
const HttpCodeMetadataKey = "X-Http-Code"

// MetadataPrefix is the prefix for grpc headers on metadata
const MetadataPrefix = "Grpc-Metadata"

// WithPrefix creates a new string with grpc metadata prefix
func WithPrefix(value string) string {
	return MetadataPrefix + "-" + value
}