test-triam-base-contract/src/network.js

Low level triam smart cotnract support library

import {hash} from "./hashing";

/**
 * Contains passphrases for common networks:
 * * `Networks.PUBLIC`: `Public Global Stellar Network ; September 2015`
 * * `Networks.TESTNET`: `Test SDF Network ; September 2015`
 * @type {{PUBLIC: string, TESTNET: string}}
 */
export const Networks = {
	PUBLIC: "Public Global Stellar Network ; September 2015",
	TESTNET: "Test SDF Network ; September 2015"
};

var current = null;

/**
 * The Network class provides helper methods to get the passphrase or id for different
 * stellar networks.  It also provides the {@link Network.current} class method that returns the network
 * that will be used by this process for the purposes of generating signatures.
 *
 * You should select network your app will use before adding the first signature. You can use the `use`,
 * `usePublicNetwork` and `useTestNetwork` helper methods.
 *
 * Creates a new `Network` object.
 * @constructor
 * @param {string} networkPassphrase Network passphrase
 */
export class Network {
	constructor(networkPassphrase) {
		this._networkPassphrase = networkPassphrase;
	}

	/**
	 * Use Stellar Public Network
	 */
	static usePublicNetwork() {
		this.use(new Network(Networks.PUBLIC));
	}

	/**
	 * Use test network.
	 */
	static useTestNetwork() {
		this.use(new Network(Networks.TESTNET));
	}

	/**
	 * Use network defined by Network object.
	 * @param {Network} network Network to use
	 */
	static use(network) {
		current = network;
	}

	/**
	 * Returns currently selected network.
	 * @returns {Network}
	 */
	static current() {
		return current;
	}

	/**
	 * Returns network passphrase.
	 * @returns {string}
	 */
	networkPassphrase() {
		return this._networkPassphrase;
	}

	/**
	 * Returns Network ID. Network ID is SHA-256 hash of network passphrase.
	 * @returns {string}
	 */
	networkId() {
		return hash(this.networkPassphrase());
	}
}