Created
February 12, 2023 23:48
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| 'use strict'; | |
| const assert = require('bsert'); | |
| const EventEmitter = require('events'); | |
| const WEB3 = require('web3-eth'); | |
| const {endpoint} = require('./constants'); | |
| /** | |
| * API | |
| * @alias module:API | |
| */ | |
| class API extends EventEmitter { | |
| /** | |
| * Create a API. | |
| * @constructor | |
| * @param {Object} options | |
| */ | |
| constructor(options) { | |
| super(); | |
| this.options = new APIOptions(options); | |
| this.eth = this.options.eth; | |
| } | |
| } | |
| class APIOptions { | |
| /** | |
| * APIOptions | |
| * @alias module:API.APIOptions | |
| * @constructor | |
| * @param {Object} options | |
| */ | |
| constructor(options) { | |
| this.options = options; | |
| this.eth = new WEB3(new WEB3.providers.HttpProvider(endpoint)); | |
| if (options) | |
| this.fromOptions(options); | |
| } | |
| /** | |
| * Inject properties from object. | |
| * @private | |
| * @param {Object} options | |
| * @returns {APIOptions} | |
| */ | |
| fromOptions(options) { | |
| assert(options); | |
| this.eth = options.eth; | |
| if (options.eth != null) { | |
| assert(typeof options.eth === 'object'); | |
| this.eth = options.eth; | |
| } | |
| return this; | |
| } | |
| /** | |
| * Instantiate http options from object. | |
| * @param {Object} options | |
| * @returns {APIOptions} | |
| */ | |
| static fromOptions(options) { | |
| return new this().fromOptions(options); | |
| } | |
| } | |
| /** | |
| * Helpers | |
| */ | |
| function enforce(value, msg) { | |
| if (!value) { | |
| const err = new Error(msg); | |
| err.statusCode = 400; | |
| throw err; | |
| } | |
| } | |
| /* | |
| * Expose | |
| */ | |
| module.exports = API; |
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