48 lines
952 B
Go
48 lines
952 B
Go
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package envitron
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import (
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"encoding/json"
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"io"
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"github.com/labstack/echo"
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)
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type jsonError struct {
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Message string `json:"error"`
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}
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func (e jsonError) Error() string {
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return e.Message
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}
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type bindError struct {
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Message string `json:"error"`
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Offset int64 `json:"offset"`
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Field string `json:"field,omitempty"`
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}
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func (e bindError) Error() string {
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return e.Message
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}
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type jsonBinder struct{}
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func (b jsonBinder) Bind(i interface{}, c echo.Context) error {
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err := json.NewDecoder(c.Request().Body).Decode(i)
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if err == nil {
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return nil
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}
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switch e := err.(type) {
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case *json.SyntaxError:
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return bindError{Message: `Syntax error`, Offset: e.Offset, Field: ``}
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case *json.UnmarshalTypeError:
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return bindError{Message: `Type error`, Offset: e.Offset, Field: e.Field}
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}
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if err == io.ErrUnexpectedEOF || err == io.EOF {
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return jsonError{`Unexpected EOF`}
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}
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return jsonError{`Unknown error occurred while parsing JSON`}
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}
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