utils

Documentation

Index

• Constants
• func Coalesce(strArgs ...string) string
• func Die(lastWord interface{})
• func DieIfError(err error, message string)
• func MustURLParse(urlStr string) *url.URL
• func MustValidate(val interface{})
• func RandString(size int, set int, include string, exclude string) (string, error)
• func RandStringInit()
• func RepeatMethod(ctx context.Context, backoff BackoffFunc, maxAttempts int, ...) (err error)
• func WrapPanic(method func(ctx context.Context)) func(ctx context.Context) error
• type BackoffFunc
  • func BackoffEmpty() BackoffFunc
  • func BackoffExponential(waitInterval time.Duration, multiply float64) BackoffFunc
  • func BackoffLinear(waitInterval time.Duration) BackoffFunc

Constants

const GenRandAll = GenRandLowerUpperDigit | GenRandSymbol

GenRandAll .

const GenRandDigit = 1 << 2

GenRandDigit .

const GenRandLower = 1 << 0

GenRandLower .

const GenRandLowerDigit = GenRandLower | GenRandDigit

GenRandLowerDigit .

const GenRandLowerUpper = GenRandLower | GenRandUpper

GenRandLowerUpper .

const GenRandLowerUpperDigit = GenRandLowerUpper | GenRandDigit

GenRandLowerUpperDigit .

const GenRandNone = 0

GenRandNone .

const GenRandSymbol = 1 << 3

GenRandSymbol .

const GenRandUpper = 1 << 1

GenRandUpper .

const GenRandUpperDigit = GenRandUpper | GenRandDigit

GenRandUpperDigit .

Functions

func Coalesce

func Coalesce(strArgs ...string) string

Coalesce return first non empty argument

func Die

func Die(lastWord interface{})

Die prints "last word" and stop process

func DieIfError

func DieIfError(err error, message string)

DieIfError if error is not empty wrap it in message, print and stop process

func MustURLParse

func MustURLParse(urlStr string) *url.URL

MustURLParse helps to parse URL.

func MustValidate

func MustValidate(val interface{})

MustValidate helps to validate struct.

func RandString

func RandString(size int, set int, include string, exclude string) (string, error)

RandString .

func RandStringInit

func RandStringInit()

RandStringInit .

func RepeatMethod

func RepeatMethod(ctx context.Context, backoff BackoffFunc, maxAttempts int, callback func(context.Context) error) (err error)

RepeatMethod for max attempts and wait interval before them in sync mode

func WrapPanic

func WrapPanic(method func(ctx context.Context)) func(ctx context.Context) error

WrapPanic wraps any method for recovering after panic

Types

type BackoffFunc

type BackoffFunc func(ctx context.Context) error

BackoffFunc method

func BackoffEmpty

func BackoffEmpty() BackoffFunc

BackoffEmpty no waits

func BackoffExponential

func BackoffExponential(waitInterval time.Duration, multiply float64) BackoffFunc

BackoffExponential waits exponential time

func BackoffLinear

func BackoffLinear(waitInterval time.Duration) BackoffFunc

BackoffLinear waits linear time