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58 lines
1.2 KiB
58 lines
1.2 KiB
package json
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import (
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"encoding/json"
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"reflect"
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"github.com/go-kratos/kratos/v2/encoding"
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"google.golang.org/protobuf/encoding/protojson"
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"google.golang.org/protobuf/proto"
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)
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// Name is the name registered for the json codec.
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const Name = "json"
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var (
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// MarshalOptions is a configurable JSON format marshaler.
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MarshalOptions = protojson.MarshalOptions{
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EmitUnpopulated: true,
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}
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// UnmarshalOptions is a configurable JSON format parser.
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UnmarshalOptions = protojson.UnmarshalOptions{
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DiscardUnknown: true,
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}
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)
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func init() {
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encoding.RegisterCodec(codec{})
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}
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// codec is a Codec implementation with json.
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type codec struct{}
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func (codec) Marshal(v interface{}) ([]byte, error) {
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if m, ok := v.(proto.Message); ok {
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return MarshalOptions.Marshal(m)
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}
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return json.Marshal(v)
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}
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func (codec) Unmarshal(data []byte, v interface{}) error {
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rv := reflect.ValueOf(v)
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for rv.Kind() == reflect.Ptr {
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if rv.IsNil() {
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rv.Set(reflect.New(rv.Type().Elem()))
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v = rv.Interface()
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}
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rv = rv.Elem()
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}
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if m, ok := v.(proto.Message); ok {
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return UnmarshalOptions.Unmarshal(data, m)
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}
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return json.Unmarshal(data, v)
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}
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func (codec) Name() string {
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return Name
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}
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