在NPM发布自己造的轮子的方法步骤(4)

const fs = require('fs'); const path = require('path'); const tinify = require('tinify'); const KEY_FILE_PATH = path.join(__dirname, './data/key'); // 睡眠 const sleep = (ms)=> { return new Promise(function(resolve) { setTimeout(()=> { resolve(true); }, ms); }); } // 判定apikey是否有效 const checkApiKey = async apiKey=> { return new Promise(async resolve=> { let res = true; res = /^\w{32}$/.test(apiKey); if (res === false) { console.log('api-key格式不对'); resolve(res); return; } res = await checkKeyValidate(apiKey); resolve(res); }) } // 检查api-key是否存在 const checkKeyValidate = apiKey=> { return new Promise(async (resolve)=> { tinify.key = apiKey; tinify.validate(function(err) { if (err) { console.log('该api-key不是有效值'); resolve(false); } }); let count = 500; Object.defineProperty(tinify, 'compressionCount', { get: ()=> { return count; }, set: newValue => { count = newValue; resolve(true); }, enumerable : true, configurable : true }); }); }; // 获取文件内的key，以数组的形式返回 const getKeys = ()=> { const keys = fs.readFileSync(KEY_FILE_PATH, 'utf-8').split(' '); return keys[0] === '' ? [] : keys; } // 把api-key写入到文件里 const addKeyToFile = (apiKey, content = '')=> { return new Promise(async resolve=> { const writerStream = fs.createWriteStream(KEY_FILE_PATH); // 使用 utf8 编码写入数据 writerStream.write(content + apiKey,'UTF8'); // 标记文件末尾 writerStream.end(); // 处理流事件 --> data, end, and error writerStream.on('finish', function() { console.log('=====已更新====='); resolve(true); }); writerStream.on('error', function(err){ console.log(err.stack); console.log('写入失败。'); resolve(false); }); }) } // 显示文件内的api-key const list = ()=> { const keys = getKeys(); if (keys.length === 0) { console.log('没有存储api-key'); } else { keys.forEach((key)=> { console.log(key); }); } }; module.exports = { sleep, checkApiKey, getKeys, addKeyToFile, list }