File: single_key.go

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golang-github-grpc-ecosystem-go-grpc-middleware 2.1.0-2
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// Copyright (c) The go-grpc-middleware Authors.
// Licensed under the Apache License 2.0.

package metadata

import (
	"encoding/base64"
	"strings"
)

const (
	binHdrSuffix = "-bin"
)

func encodeKeyValue(k, v string) (string, string) {
	k = strings.ToLower(k)
	if strings.HasSuffix(k, binHdrSuffix) {
		return k, base64.StdEncoding.EncodeToString([]byte(v))
	}
	return k, v
}