forked from stellar/go
/
internal.go
73 lines (60 loc) · 1.38 KB
/
internal.go
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package horizon
import (
"bytes"
"encoding/json"
"fmt"
"net/http"
"regexp"
"github.com/manucorporat/sse"
"github.com/Kregopaulgue/go/support/errors"
)
var endEvent = regexp.MustCompile("(\r\n|\r|\n){2}")
func decodeResponse(resp *http.Response, object interface{}) (err error) {
defer resp.Body.Close()
decoder := json.NewDecoder(resp.Body)
if !(resp.StatusCode >= 200 && resp.StatusCode < 300) {
horizonError := &Error{
Response: resp,
}
decodeError := decoder.Decode(&horizonError.Problem)
if decodeError != nil {
return errors.Wrap(decodeError, "error decoding horizon.Problem")
}
return horizonError
}
err = decoder.Decode(&object)
if err != nil {
return
}
return
}
func loadMemo(p *Payment) error {
res, err := http.Get(p.Links.Transaction.Href)
if err != nil {
return err
}
defer res.Body.Close()
return json.NewDecoder(res.Body).Decode(&p.Memo)
}
func parseEvent(data []byte) (result sse.Event, err error) {
r := bytes.NewReader(data)
events, err := sse.Decode(r)
if err != nil {
return
}
if len(events) != 1 {
err = fmt.Errorf("only expected 1 event, got: %d", len(events))
return
}
result = events[0]
return
}
func splitSSE(data []byte, atEOF bool) (advance int, token []byte, err error) {
if atEOF {
return 0, nil, nil
}
if loc := endEvent.FindIndex(data); loc != nil {
return loc[1], data[0:loc[1]], nil
}
return 0, nil, nil
}