39 lines
895 B
Go
39 lines
895 B
Go
package notifications
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import (
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"context"
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"errors"
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"net/http"
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)
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// AlertMetadata holds context about the alert being sent.
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type AlertMetadata struct {
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TxHash string
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AddressLabel string
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AlertType string
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Address string
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}
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type Notifier interface {
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Send(ctx context.Context, message string, meta AlertMetadata) error
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}
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// PermanentError wraps errors that should not be retried (e.g. 401, 403, 404).
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type PermanentError struct{ Err error }
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func (e *PermanentError) Error() string { return e.Err.Error() }
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func (e *PermanentError) Unwrap() error { return e.Err }
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func IsPermanent(err error) bool {
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var p *PermanentError
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return errors.As(err, &p)
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}
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func isPermanentStatusCode(code int) bool {
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return code == http.StatusUnauthorized ||
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code == http.StatusForbidden ||
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code == http.StatusNotFound ||
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code == http.StatusMethodNotAllowed ||
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code == http.StatusGone
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}
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