rand

Documentation

Overview

Package rand provides utilities for creating and working with random value generators.

Index

• Variables
• func CryptoRandInt63n(max int64) (int64, error)
• func Int63n(reader io.Reader, max int64) (int64, error)
• type UUID
  • func NewUUID(r io.Reader) *UUID
  • func (r *UUID) GetBytes() (u []byte, err error)
  • func (r *UUID) GetUUID() (string, error)
• type UUIDIdempotencyToken
  • func NewUUIDIdempotencyToken(r io.Reader) *UUIDIdempotencyToken
  • func (u UUIDIdempotencyToken) GetIdempotencyToken() (string, error)

Variables

var Reader io.Reader

Reader provides a random reader that can reset during testing.

Functions

func CryptoRandInt63n

func CryptoRandInt63n(max int64) (int64, error)

CryptoRandInt63n returns a random int64 between zero and value of max obtained from the crypto rand source.

func Int63n

func Int63n(reader io.Reader, max int64) (int64, error)

Int63n returns a int64 between zero and value of max, read from an io.Reader source.

Types

type UUID

type UUID struct {
	// contains filtered or unexported fields
}

UUID provides computing random UUID version 4 values from a random source reader.

func NewUUID

func NewUUID(r io.Reader) *UUID

NewUUID returns an initialized UUID value that can be used to retrieve random UUID version 4 values.

func (*UUID) GetBytes

func (r *UUID) GetBytes() (u []byte, err error)

GetBytes returns a byte slice containing a random UUID version 4 sourced from the random reader the UUID was created with. Returns an error if unable to compute the UUID.

func (*UUID) GetUUID

func (r *UUID) GetUUID() (string, error)

GetUUID returns a random UUID version 4 string representation sourced from the random reader the UUID was created with. Returns an error if unable to compute the UUID.

type UUIDIdempotencyToken

type UUIDIdempotencyToken struct {
	// contains filtered or unexported fields
}

UUIDIdempotencyToken provides a utility to get idempotency tokens in the UUID format.

func NewUUIDIdempotencyToken

func NewUUIDIdempotencyToken(r io.Reader) *UUIDIdempotencyToken

NewUUIDIdempotencyToken returns a idempotency token provider returning tokens in the UUID random format using the reader provided.

func (UUIDIdempotencyToken) GetIdempotencyToken

func (u UUIDIdempotencyToken) GetIdempotencyToken() (string, error)

GetIdempotencyToken returns a random UUID value for Idempotency token.