安装

yarn add leancloud-storage --save

引入、配置

import AV, { Query, User } from 'leancloud-storage';
AV.init({
  appId: "  ",
  appKey: "  ",
  serverURL: "  "
});

Api

注册

const user = new AV.User();
user.setUsername(username);
user.setPassword(password);
user.setEmail(email);
user.signUp().then((loginedUser) => {
  // 注册成功，跳转到商品 list 页面
}, (error) => {
  alert(JSON.stringify(error));
}));

登陆

AV.User.logIn(username, password).then((loginedUser) => {
    // 登录成功，跳转到商品 list 页面
  }, (error) => {
    alert(JSON.stringify(error));
  });

注销

• User.logOut()

  获取当前用户

• User.current()

  构建文件

• const avFile = new AV.File(fileName, file)

  构建对象

  ```javascript // 构建对象 const todo = new AV.Object(‘todo’)

// 为属性赋值 item.set(‘filename’,fileName) item.set(‘owner’,AV.User.current())

// 将对象保存到云端 todo.save().then((todo) => { console.log(保存成功。objectId：${todo.id}) // 成功保存之后，执行其他逻辑 }, (error) => { // 异常处理 });

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### 上传文件
```javascript
const item = new AV.Object('image')
const avFile = new AV.File(fileName, file)
item.set('filename', fileName)
item.set('owner', AV.User.current())
item.set('url', avFile)
item.save().then(
  serverFile => resolve(serverFile),
  error => reject(error))
})

查询

find({page = 0, limit = 10}) {
  const query = new AV.Query('image')
  query.include('owner')                                    // 包含属性
  query.limit(limit)                                    // 显示数量
  query.skip(page * limit)                                  // 跳过数量
  query.descending('createdAt')                      // 降序排列
  query.equalTo('owner', AV.User.current())   // 当前用户
  return new Promise((resolve, reject) => {
    query.find()                              // 执行查询
      .then(result => resolve(result))
      .catch(error => reject(error))
  })
}

删除文件

remove(file) {
  const item = AV.Object.createWithoutData('image', file)  
  return new Promise((resolve, reject) => {
    item.destroy()
      .then(result => resolve(result))
      .catch(error => reject(error))
  })
}

封装

const Auth = {
  register(userName, passWord) {
    const user = new User()
    user.setUsername(userName)
    user.setPassword(passWord)
    return Promise.then((resolve, reject) => {
      user.signUp().then(loginUser => resolve(loginUser)
        , (error) => reject(error)
      )
    })
  },
  login(userName, passWord) {
    return Promise.then((resolve, reject) => {
      AV.User.logIn(userName, passWord).then(loginedUser => resolve(loginedUser)
        , (error) => reject(error)
    })
  }
}