| 1 | /**
|
|---|
| 2 | * Generate secure URL-friendly unique ID.
|
|---|
| 3 | *
|
|---|
| 4 | * By default, the ID will have 21 symbols to have a collision probability
|
|---|
| 5 | * similar to UUID v4.
|
|---|
| 6 | *
|
|---|
| 7 | * ```js
|
|---|
| 8 | * import { nanoid } from 'nanoid'
|
|---|
| 9 | * model.id = nanoid() //=> "Uakgb_J5m9g-0JDMbcJqL"
|
|---|
| 10 | * ```
|
|---|
| 11 | *
|
|---|
| 12 | * @param size Size of the ID. The default size is 21.
|
|---|
| 13 | * @returns A random string.
|
|---|
| 14 | */
|
|---|
| 15 | export function nanoid(size?: number): string
|
|---|
| 16 |
|
|---|
| 17 | /**
|
|---|
| 18 | * Generate secure unique ID with custom alphabet.
|
|---|
| 19 | *
|
|---|
| 20 | * Alphabet must contain 256 symbols or less. Otherwise, the generator
|
|---|
| 21 | * will not be secure.
|
|---|
| 22 | *
|
|---|
| 23 | * @param alphabet Alphabet used to generate the ID.
|
|---|
| 24 | * @param defaultSize Size of the ID. The default size is 21.
|
|---|
| 25 | * @returns A random string generator.
|
|---|
| 26 | *
|
|---|
| 27 | * ```js
|
|---|
| 28 | * const { customAlphabet } = require('nanoid')
|
|---|
| 29 | * const nanoid = customAlphabet('0123456789абвгдеё', 5)
|
|---|
| 30 | * nanoid() //=> "8ё56а"
|
|---|
| 31 | * ```
|
|---|
| 32 | */
|
|---|
| 33 | export function customAlphabet(
|
|---|
| 34 | alphabet: string,
|
|---|
| 35 | defaultSize?: number
|
|---|
| 36 | ): (size?: number) => string
|
|---|
| 37 |
|
|---|
| 38 | /**
|
|---|
| 39 | * Generate unique ID with custom random generator and alphabet.
|
|---|
| 40 | *
|
|---|
| 41 | * Alphabet must contain 256 symbols or less. Otherwise, the generator
|
|---|
| 42 | * will not be secure.
|
|---|
| 43 | *
|
|---|
| 44 | * ```js
|
|---|
| 45 | * import { customRandom } from 'nanoid/format'
|
|---|
| 46 | *
|
|---|
| 47 | * const nanoid = customRandom('abcdef', 5, size => {
|
|---|
| 48 | * const random = []
|
|---|
| 49 | * for (let i = 0; i < size; i++) {
|
|---|
| 50 | * random.push(randomByte())
|
|---|
| 51 | * }
|
|---|
| 52 | * return random
|
|---|
| 53 | * })
|
|---|
| 54 | *
|
|---|
| 55 | * nanoid() //=> "fbaef"
|
|---|
| 56 | * ```
|
|---|
| 57 | *
|
|---|
| 58 | * @param alphabet Alphabet used to generate a random string.
|
|---|
| 59 | * @param size Size of the random string.
|
|---|
| 60 | * @param random A random bytes generator.
|
|---|
| 61 | * @returns A random string generator.
|
|---|
| 62 | */
|
|---|
| 63 | export function customRandom(
|
|---|
| 64 | alphabet: string,
|
|---|
| 65 | size: number,
|
|---|
| 66 | random: (bytes: number) => Uint8Array
|
|---|
| 67 | ): () => string
|
|---|
| 68 |
|
|---|
| 69 | /**
|
|---|
| 70 | * URL safe symbols.
|
|---|
| 71 | *
|
|---|
| 72 | * ```js
|
|---|
| 73 | * import { urlAlphabet } from 'nanoid'
|
|---|
| 74 | * const nanoid = customAlphabet(urlAlphabet, 10)
|
|---|
| 75 | * nanoid() //=> "Uakgb_J5m9"
|
|---|
| 76 | * ```
|
|---|
| 77 | */
|
|---|
| 78 | export const urlAlphabet: string
|
|---|
| 79 |
|
|---|
| 80 | /**
|
|---|
| 81 | * Generate an array of random bytes collected from hardware noise.
|
|---|
| 82 | *
|
|---|
| 83 | * ```js
|
|---|
| 84 | * import { customRandom, random } from 'nanoid'
|
|---|
| 85 | * const nanoid = customRandom("abcdef", 5, random)
|
|---|
| 86 | * ```
|
|---|
| 87 | *
|
|---|
| 88 | * @param bytes Size of the array.
|
|---|
| 89 | * @returns An array of random bytes.
|
|---|
| 90 | */
|
|---|
| 91 | export function random(bytes: number): Uint8Array
|
|---|