id

Documentation

Overview

Package id generates prefixed NanoIDs — short, URL-safe, collision-resistant public identifiers (Stripe-style: "sess_V1StGXR8Zx7pq"). They are the primary keys for runtime entities, friendlier to read and copy than a UUID while carrying far more entropy than the old randHex(4) handles (which collided around ~65k rows).

Index

• Constants
• func NanoID(n int) string
• func New(prefix string) string
• func Prefix(id string) string

Constants

const Size = 16

Size is the number of random characters after the prefix. 16 chars over a 64-symbol alphabet is 96 bits of entropy — collision-safe well past any realistic row count.

Functions

func NanoID

func NanoID(n int) string

NanoID returns a bare random id of n characters.

func New

func New(prefix string) string

New returns a prefixed id: "<prefix>_<nanoid>", e.g. New("sess") -> "sess_V1StGXR8Zx7pq".

func Prefix

func Prefix(id string) string

Prefix returns the type prefix of an id (the part before the first underscore), or "".