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| package echo | |
| import ( | |
| "encoding/json" | |
| "fmt" | |
| "net/http" | |
| ) | |
| // DefaultJSONSerializer implements JSON encoding using encoding/json. | |
| type DefaultJSONSerializer struct{} | |
| // Serialize converts an interface into a json and writes it to the response. | |
| // You can optionally use the indent parameter to produce pretty JSONs. | |
| func (d DefaultJSONSerializer) Serialize(c Context, i interface{}, indent string) error { | |
| enc := json.NewEncoder(c.Response()) | |
| if indent != "" { | |
| enc.SetIndent("", indent) | |
| } | |
| return enc.Encode(i) | |
| } | |
| // Deserialize reads a JSON from a request body and converts it into an interface. | |
| func (d DefaultJSONSerializer) Deserialize(c Context, i interface{}) error { | |
| err := json.NewDecoder(c.Request().Body).Decode(i) | |
| if ute, ok := err.(*json.UnmarshalTypeError); ok { | |
| return NewHTTPError(http.StatusBadRequest, fmt.Sprintf("Unmarshal type error: expected=%v, got=%v, field=%v, offset=%v", ute.Type, ute.Value, ute.Field, ute.Offset)).SetInternal(err) | |
| } else if se, ok := err.(*json.SyntaxError); ok { | |
| return NewHTTPError(http.StatusBadRequest, fmt.Sprintf("Syntax error: offset=%v, error=%v", se.Offset, se.Error())).SetInternal(err) | |
| } | |
| return err | |
| } |