fails

Documentation

Index

• Variables
• type Classifier
• type ClassifierFunc
  • func (f ClassifierFunc) Classify(err error) bool
• type ClassifierGroup
  • func (cg ClassifierGroup) Classify(err error) bool

Variables

var AttemptedTLSWithNonTLSBackend = ClassifierFunc(func(err error) bool {
	switch err.(type) {
	case tls.RecordHeaderError, *tls.RecordHeaderError:
		return true
	default:
		return false
	}
})

var ConnectionResetOnRead = ClassifierFunc(func(err error) bool {
	ne, ok := err.(*net.OpError)
	return ok && ne.Op == "read" && ne.Err.Error() == "read: connection reset by peer"
})

var ContextCancelled = ClassifierFunc(func(err error) bool {
	return err == context.Canceled
})

var Dial = ClassifierFunc(func(err error) bool {
	ne, ok := err.(*net.OpError)
	return ok && ne.Op == "dial"
})

var FailableClassifiers = RetriableClassifiers

var HostnameMismatch = ClassifierFunc(func(err error) bool {
	switch err.(type) {
	case x509.HostnameError, *x509.HostnameError:
		return true
	default:
		return false
	}
})

var PrunableClassifiers = ClassifierGroup{
	HostnameMismatch,
	AttemptedTLSWithNonTLSBackend,
}

var RemoteFailedCertCheck = ClassifierFunc(func(err error) bool {
	ne, ok := err.(*net.OpError)
	return ok && ne.Op == "remote error" && ne.Err.Error() == "tls: bad certificate"
})

var RemoteHandshakeFailure = ClassifierFunc(func(err error) bool {
	ne, ok := err.(*net.OpError)
	return ok && ne.Op == "remote error" && ne.Err.Error() == "tls: handshake failure"
})

var RetriableClassifiers = ClassifierGroup{
	AttemptedTLSWithNonTLSBackend,
	Dial,
	ConnectionResetOnRead,
	RemoteFailedCertCheck,
	RemoteHandshakeFailure,
	HostnameMismatch,
	UntrustedCert,
}

var UntrustedCert = ClassifierFunc(func(err error) bool {
	switch err.(type) {
	case x509.UnknownAuthorityError, *x509.UnknownAuthorityError:
		return true
	default:
		return false
	}
})

Types

type Classifier

type Classifier interface {
	Classify(err error) bool
}

type ClassifierFunc

type ClassifierFunc func(err error) bool

func (ClassifierFunc) Classify

func (f ClassifierFunc) Classify(err error) bool

type ClassifierGroup

type ClassifierGroup []Classifier

func (ClassifierGroup) Classify

func (cg ClassifierGroup) Classify(err error) bool

Classify returns true on errors that are retryable