Documentation
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Index ¶
Constants ¶
const ( DefaultRandomIDGeneratorAlphabet = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ" DefaultRandomIDGeneratorLength = 32 )
Variables ¶
var DefaultUUIDGenerator = NewUUIDGenerator()
DefaultUUIDGenerator is the default UUID v7 generator instance. UUID v7 embeds a timestamp for natural ordering and includes random bits for uniqueness.
var DefaultXIDGenerator = NewXIDGenerator()
DefaultXIDGenerator is the default XID generator instance.
Functions ¶
func Generate ¶
func Generate() string
Generate creates a new unique identifier using the default XID generator. XID is chosen as the default because it offers the best performance with good uniqueness guarantees. The generated ID is a 20-character string using base32 encoding (0-9, a-v).
Example:
id := Generate() // Returns something like: "9m4e2mr0ui3e8a215n4g"
func GenerateUUID ¶
func GenerateUUID() string
GenerateUUID creates a new UUID v7 identifier using the default UUID generator. UUID v7 provides time-based ordering and follows RFC 4122 standards. The generated UUID is a 36-character string in the format: xxxxxxxx-xxxx-7xxx-xxxx-xxxxxxxxxxxx
Example:
uuid := GenerateUUID() // Returns something like: "018f4e42-832a-7123-9abc-def012345678"
Types ¶
type IDGenerator ¶
type IDGenerator interface {
// Generate creates a new unique identifier as a string.
// The format and characteristics depend on the specific implementation.
Generate() string
}
IDGenerator defines the interface for all ID generation strategies. All generators must implement this interface to ensure consistency.
var DefaultSnowflakeIDGenerator IDGenerator
DefaultSnowflakeIDGenerator is the default Snowflake ID generator instance.
func NewRandomIDGenerator ¶
func NewRandomIDGenerator(opts ...RandomIDGeneratorOption) IDGenerator
NewRandomIDGenerator creates a new random ID generator with optional configuration. Defaults to alphanumeric alphabet (62 chars) and length of 32.
func NewSnowflakeIDGenerator ¶
func NewSnowflakeIDGenerator(nodeID int64) (_ IDGenerator, err error)
NewSnowflakeIDGenerator creates a new Snowflake ID generator for the specified node. The nodeID must be between 0 and 63 (6-bit limit as configured in init). Each node in a distributed system should have a unique nodeID to ensure global uniqueness.
func NewUUIDGenerator ¶
func NewUUIDGenerator() IDGenerator
NewUUIDGenerator creates a new UUID v7 generator instance.
func NewXIDGenerator ¶
func NewXIDGenerator() IDGenerator
NewXIDGenerator creates a new XID generator instance.
type RandomIDGeneratorOption ¶
type RandomIDGeneratorOption func(*randomIDGenerator)
RandomIDGeneratorOption configures a randomIDGenerator instance.
func WithAlphabet ¶
func WithAlphabet(alphabet string) RandomIDGeneratorOption
WithAlphabet sets the character set for random ID generation.
func WithLength ¶
func WithLength(length int) RandomIDGeneratorOption
WithLength sets the length of generated random IDs.
Source Files