Wepy/packages/use-promisify

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@wepy/use-promisify

Promisfy all weapp APIs.

安装

npm install @wepy/use-promisify --save

用法

基本用法

import wepy from '@wepy/core';
import promisify  from '@wepy/use-promisify';

wepy.use(promisify);

wepy.wx.getStorage('mykey').then(res => console.log(res));

忽略 APIs

wepy.use(promisify, ['getStorage', 'getSystemInfo']);

// passing object
// wepy.use(promisify, { someNewAPI: false, getStorage: true });
wepy.wx.getStorage({
  key: 'mykey',
  succuess (res) { console.log(res) }
})

函数调用

Support to use wepy.promisify to promisify a callback function.

/**
 * Promisify a callback function
 * @param  {Function} fn     callback function
 * @param  {Object}   caller caller
 * @param  {String}   type   weapp-style|error-first, default to weapp-style
 * @return {Function}        promisified function
 */
wepy.promisify(fn, caller, type);

weapp-style

支持 weapp-style的所有功能:

func({
  success () {},
  fail () {}
})
wepy.promisify(func)({key: 'mykey'}).then(console.log).catch(console.error);

error-first

支持所有 error-first 功能，例如:

func(arg1, args2, function (err, data) {});

wepy.promisify(func, null, 'error-first')(arg1, arg2).then(console.log).catch(console.error);

简化参数

weapp-style 函数始终需要一个Object参数，并且此插件将简化参数。例如：

wepy.use(promisify);

// wepy.wx.getStorage({ key: 'mykey' });
wepy.wx.getStorage('mykey');

// wepy.wx.request({ url: myurl });
wepy.wx.request(myurl);

// wepy.wx.openLocation({ latitude: 0, longitude: 0 });
wepy.wx.openLocation(0, 0);

在这里我们可以看到所有的简化列表 Simplify List