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json.go
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json.go
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package eth2api
import (
"encoding/json"
"fmt"
"io"
)
type JSONCodec struct{}
func (JSONCodec) EncodeResponseBody(w io.Writer, data interface{}) error {
enc := json.NewEncoder(w)
return enc.Encode(data)
}
func (JSONCodec) DecodeResponseBody(code uint, r io.ReadCloser, dest interface{}) error {
defer r.Close()
if code < 200 {
return fmt.Errorf("unexpected response status code: %d", code)
} else if code == 200 {
if dest == nil {
return nil
}
dec := json.NewDecoder(r)
return dec.Decode(dest)
} else {
var errMsg ErrorMessage
dec := json.NewDecoder(r)
if err := dec.Decode(&errMsg); err != nil {
return ClientApiErr{fmt.Errorf("failed to decode error response with status code: %d", code)}
}
return &errMsg
}
}
func (JSONCodec) EncodeRequestBody(w io.Writer, body interface{}) error {
enc := json.NewEncoder(w) // TODO: different content-types
return enc.Encode(body)
}
func (JSONCodec) DecodeRequestBody(r io.ReadCloser, dst interface{}) error {
defer r.Close()
dec := json.NewDecoder(r)
return dec.Decode(dst)
}
func (JSONCodec) ContentType() []string {
return []string{
"application/json",
}
}