barcode_snowflake

Documentation

Index

• Constants
• func New(node int64) (*barcodeStringGenerator, error)
• type ID
  • func (f ID) Base2() string
  • func (f ID) Base36() string
  • func (f ID) Base64() string
  • func (f ID) Bytes() []byte
  • func (f ID) Int64() int64
  • func (f ID) IntBytes() [8]byte
  • func (f ID) MarshalJSON() ([]byte, error)
  • func (f ID) Node() int64
  • func (f ID) Step() int64
  • func (f ID) String() string
  • func (f ID) Time() int64
  • func (f *ID) UnmarshalJSON(b []byte) error
• type JSONSyntaxError
  • func (j JSONSyntaxError) Error() string

Constants

const (
	// Epoch is set to the twitter snowflake epoch of Nov 04 2010 01:42:54 UTC
	// You may customize this to set a different epoch for your application.
	Epoch int64 = 1288834974657

	// Number of bits to use for barcodeStringGenerator
	// Remember, you have a total 12 bits to share between Node/Step
	NodeBits uint8 = 4

	// Number of bits to use for Step
	// Remember, you have a total 12 bits to share between barcodeStringGenerator/Step
	StepBits uint8 = 8

	TotalBits uint8 = 39
)

Functions

func New

func New(node int64) (*barcodeStringGenerator, error)

Types

type ID

type ID int64

An ID is a custom type used for a snowflake ID. This is used so we can attach methods onto the ID.

func (ID) Base2

func (f ID) Base2() string

Base2 returns a string base2 of the snowflake ID

func (ID) Base36

func (f ID) Base36() string

Base36 returns a base36 string of the snowflake ID

func (ID) Base64

func (f ID) Base64() string

Base64 returns a base64 string of the snowflake ID

func (ID) Bytes

func (f ID) Bytes() []byte

Bytes returns a byte slice of the snowflake ID

func (ID) Int64

func (f ID) Int64() int64

Int64 returns an int64 of the snowflake ID

func (ID) IntBytes

func (f ID) IntBytes() [8]byte

IntBytes returns an array of bytes of the snowflake ID, encoded as a big endian integer.

func (ID) MarshalJSON

func (f ID) MarshalJSON() ([]byte, error)

MarshalJSON returns a json byte array string of the snowflake ID.

func (ID) Node

func (f ID) Node() int64

barcodeStringGenerator returns an int64 of the snowflake ID node number

func (ID) Step

func (f ID) Step() int64

Step returns an int64 of the snowflake step (or sequence) number

func (ID) String

func (f ID) String() string

String returns a string of the snowflake ID

func (ID) Time

func (f ID) Time() int64

Time returns an int64 unix timestamp of the snowflake ID time

func (*ID) UnmarshalJSON

func (f *ID) UnmarshalJSON(b []byte) error

UnmarshalJSON converts a json byte array of a snowflake ID into an ID type.

type JSONSyntaxError

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

A JSONSyntaxError is returned from UnmarshalJSON if an invalid ID is provided.

func (JSONSyntaxError) Error

func (j JSONSyntaxError) Error() string