Nano URI Generator

Nano URI Generator is a simple library for generating URIs for the Nano cryptocurrency in compliance with the official URI and QR Code Standard. It currently supports URIs for sending to an address, changing the representative to an address, importing a private key, and importing a seed.

Installation

npm install nano-uri-generator

API

/**
 * Generates a URI for changing the representative.
 *
 * @param {string} address The address to change the representative to.
 * @param {string} [label] The label of the representative change.
 * @param {string} [message] The message of the representative change.
 *
 * @throws {Error} Address must be defined.
 *
 * @returns {string} The URI for changing the representative.
 */
export default function getChangeRepURI(address: string, label?: string, message?: string): string;

/**
 * Generates a URI for importing a private key.
 *
 * @param {string} privateKey The private key to import.
 * @param {string} [label] The label of the import.
 * @param {string} [message] The message of the import.
 *
 * @throws {Error} Private key must be defined.
 *
 * @returns {string} The URI for importing a private key.
 */
export default function getImportPrivateKeyURI(privateKey: string, label?: string, message?: string): string;

/**
 * Generates a URI for importing a seed.
 *
 * @param {string} seed The seed to import.
 * @param {string} [label] The label of the import.
 * @param {string} [message] The message of the import.
 * @param {number | string} [lastIndex] The last index to import.
 *
 * @throws {Error} Seed must be defined.
 *
 * @returns {string} The URI for importing a seed.
 */
export default function getImportSeedURI(seed: string, label?: string, message?: string, lastIndex?: number | string): string;

/**
 * Generates a URI for sending.
 *
 * @param {string} address The address to send to.
 * @param {number | string} [amount] The amount to send (in raw).
 * @param {string} [label] The label of the transaction.
 * @param {string} [message] The message of the transaction.
 *
 * @throws {Error} Address must be defined.
 *
 * @returns {string} The URI for sending.
 */
export default function getSendURI(address: string, amount?: number | string, label?: string, message?: string): string;

Examples

Generate a URI for sending Nano to an address:

import { getSendURI } from 'nano-uri-generator';

const nanoAddress = 'nano_1ipx847tk8o46pwxt5qjdbncjqcbwcc1rrmqnkztrfjy5k7z4imsrata9est';
const amount = '10000000000000000000000000000';
const label = 'Developer Fund';

getSendURI(nanoAddress, amount, label);
// nano:nano_1ipx847tk8o46pwxt5qjdbncjqcbwcc1rrmqnkztrfjy5k7z4imsrata9est?amount=10000000000000000000000000000&label=Developer%20Fund

Generate a URI for changing the representative to an address:

import { getChangeRepURI } from 'nano-uri-generator';

const nanoAddress = 'nano_1x7biz69cem95oo7gxkrw6kzhfywq4x5dupw4z1bdzkb74dk9kpxwzjbdhhs';
const label = 'Nano Crawler Representative';

getSendURI(nanoAddress, label);
// nano:nano_1x7biz69cem95oo7gxkrw6kzhfywq4x5dupw4z1bdzkb74dk9kpxwzjbdhhs?label=Nano%20Crawler%20Representative

QR Code Generation

To convert a URI to a QR code, I recommend using a library such as qrcode. See the example below:

import { getSendURI } from 'nano-uri-generator';
import QRCode from 'qrcode';

const uri = getSendURI('nano_1ipx847tk8o46pwxt5qjdbncjqcbwcc1rrmqnkztrfjy5k7z4imsrata9est');
const svg = QRCode.toString(uri, {type: 'svg'});

See Also

• Nano Address Validator - Validates Nano addresses for syntax and checksum integrity.
• Nano Unit Converter - Converts Nano amounts from one unit to another.