open-consul/lib/json.go

31 lines
723 B
Go

// Copyright (c) HashiCorp, Inc.
// SPDX-License-Identifier: MPL-2.0
package lib
import (
"bytes"
"encoding/json"
"io"
)
// DecodeJSON is a convenience function to create a JSON decoder
// set it up to disallow unknown fields and then decode into the
// given value
func DecodeJSON(data io.Reader, out interface{}) error {
if data == nil {
return io.EOF
}
decoder := json.NewDecoder(data)
decoder.DisallowUnknownFields()
return decoder.Decode(&out)
}
// UnmarshalJSON is a convenience function around calling
// DecodeJSON. It will mainly be useful in many of our
// UnmarshalJSON methods for structs.
func UnmarshalJSON(data []byte, out interface{}) error {
return DecodeJSON(bytes.NewReader(data), out)
}