util

var (
	Err = &Error{Code: http.StatusInternalServerError, Err: "Error"}

	// https://golang.org/pkg/net/http/#pkg-constants
	ErrBadRequest                    = Err.WithCode(http.StatusBadRequest)
	ErrUnauthorized                  = Err.WithCode(http.StatusUnauthorized)
	ErrPaymentRequired               = Err.WithCode(http.StatusPaymentRequired)
	ErrForbidden                     = Err.WithCode(http.StatusForbidden)
	ErrNotFound                      = Err.WithCode(http.StatusNotFound)
	ErrMethodNotAllowed              = Err.WithCode(http.StatusMethodNotAllowed)
	ErrNotAcceptable                 = Err.WithCode(http.StatusNotAcceptable)
	ErrProxyAuthRequired             = Err.WithCode(http.StatusProxyAuthRequired)
	ErrRequestTimeout                = Err.WithCode(http.StatusRequestTimeout)
	ErrConflict                      = Err.WithCode(http.StatusConflict)
	ErrGone                          = Err.WithCode(http.StatusGone)
	ErrLengthRequired                = Err.WithCode(http.StatusLengthRequired)
	ErrPreconditionFailed            = Err.WithCode(http.StatusPreconditionFailed)
	ErrRequestEntityTooLarge         = Err.WithCode(http.StatusRequestEntityTooLarge)
	ErrRequestURITooLong             = Err.WithCode(http.StatusRequestURITooLong)
	ErrUnsupportedMediaType          = Err.WithCode(http.StatusUnsupportedMediaType)
	ErrRequestedRangeNotSatisfiable  = Err.WithCode(http.StatusRequestedRangeNotSatisfiable)
	ErrExpectationFailed             = Err.WithCode(http.StatusExpectationFailed)
	ErrTeapot                        = Err.WithCode(http.StatusTeapot)
	ErrUnprocessableEntity           = Err.WithCode(http.StatusUnprocessableEntity)
	ErrLocked                        = Err.WithCode(http.StatusLocked)
	ErrFailedDependency              = Err.WithCode(http.StatusFailedDependency)
	ErrUpgradeRequired               = Err.WithCode(http.StatusUpgradeRequired)
	ErrPreconditionRequired          = Err.WithCode(http.StatusPreconditionRequired)
	ErrTooManyRequests               = Err.WithCode(http.StatusTooManyRequests)
	ErrRequestHeaderFieldsTooLarge   = Err.WithCode(http.StatusRequestHeaderFieldsTooLarge)
	ErrUnavailableForLegalReasons    = Err.WithCode(http.StatusUnavailableForLegalReasons)
	ErrInternalServerError           = Err.WithCode(http.StatusInternalServerError)
	ErrNotImplemented                = Err.WithCode(http.StatusNotImplemented)
	ErrBadGateway                    = Err.WithCode(http.StatusBadGateway)
	ErrServiceUnavailable            = Err.WithCode(http.StatusServiceUnavailable)
	ErrGatewayTimeout                = Err.WithCode(http.StatusGatewayTimeout)
	ErrHTTPVersionNotSupported       = Err.WithCode(http.StatusHTTPVersionNotSupported)
	ErrVariantAlsoNegotiates         = Err.WithCode(http.StatusVariantAlsoNegotiates)
	ErrInsufficientStorage           = Err.WithCode(http.StatusInsufficientStorage)
	ErrLoopDetected                  = Err.WithCode(http.StatusLoopDetected)
	ErrNotExtended                   = Err.WithCode(http.StatusNotExtended)
	ErrNetworkAuthenticationRequired = Err.WithCode(http.StatusNetworkAuthenticationRequired)
)