json.go
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// Copyright 2014 Manu Martinez-Almeida. All rights reserved.
// Use of this source code is governed by a MIT style
// license that can be found in the LICENSE file.
package binding
import (
"bytes"
"fmt"
"io"
"net/http"
"github.com/gin-gonic/gin/internal/json"
)
// EnableDecoderUseNumber is used to call the UseNumber method on the JSON
// Decoder instance. UseNumber causes the Decoder to unmarshal a number into an
// interface{} as a Number instead of as a float64.
var EnableDecoderUseNumber = false
type jsonBinding struct{}
func (jsonBinding) Name() string {
return "json"
}
func (jsonBinding) Bind(req *http.Request, obj interface{}) error {
if req == nil || req.Body == nil {
return fmt.Errorf("invalid request")
}
return decodeJSON(req.Body, obj)
}
func (jsonBinding) BindBody(body []byte, obj interface{}) error {
return decodeJSON(bytes.NewReader(body), obj)
}
func decodeJSON(r io.Reader, obj interface{}) error {
decoder := json.NewDecoder(r)
if EnableDecoderUseNumber {
decoder.UseNumber()
}
if err := decoder.Decode(obj); err != nil {
return err
}
return validate(obj)
}