41 lines
733 B
Go
41 lines
733 B
Go
package data
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import (
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"io"
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"net/url"
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"github.com/pkg/errors"
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)
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const FormatQueryParam = "format"
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type DecoderHandler interface {
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URLMatcher
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Decode(url *url.URL, reader io.Reader) (interface{}, error)
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}
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type Decoder struct {
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handlers []DecoderHandler
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}
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func (d *Decoder) Decode(url *url.URL, reader io.ReadCloser) (interface{}, error) {
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for _, h := range d.handlers {
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if !h.Match(url) {
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continue
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}
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data, err := h.Decode(url, reader)
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if err != nil {
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return nil, errors.WithStack(err)
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}
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return data, nil
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}
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return nil, errors.Wrapf(ErrHandlerNotFound, "could not find matching handler for url '%s'", url.String())
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}
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func NewDecoder(handlers ...DecoderHandler) *Decoder {
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return &Decoder{handlers}
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}
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