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For a better development experience, you can add `decorators` and `class-properties` to your babel plugins:\n\n   ```shell\n   yarn add -D @babel/plugin-proposal-decorators @babel/plugin-proposal-class-properties\n   ```\n\n   add add them to your .babelrc\n\n   ```json\n   {\n     \"plugins\": [\n       [\"@babel/proposal-decorators\",{\n         \"legacy\": true\n         }],\n       [\"@babel/proposal-class-properties\",{\n         \"loose\": true\n       }]\n     ]\n   }\n   ```\n\n3. Now write your store class, just a simple es6 class:\n\n   ```js\n   import axios from 'axios'\n   class Store {\n     userId = 00001\n     userName = zz\n     addr = {\n       province: 'Zhejiang',\n       city: 'Hangzhou'\n     }\n   \n     login() {\n       axios.post('/login', {\n         // login data\n       }).then(({ userId, userName, prov, city }) =\u003e {\n         this.userId = userId\n         this.userName = userName\n         this.addr.province = prov\n         this.addr.city = city\n       })\n     }\n   }\n   export default new Store()\n   ```\n\n4. Connect the Store to your root component: \n\n   * for class component, use`provider` decorator\n\n   ```jsx\n   import React from 'react'\n   import { provider } from 'use-ctx'\n   import store from './Store'\n   import Page from './Page'\n   \n   @provider(store)\n   export default class App extends React.Component {\n     render(){\n       return(\n         \u003cPage /\u003e\n       )\n     }\n   }\n   ```\n\n   * for functional component, use `withProvider`:\n\n   ```jsx\n   import React from 'react'\n   import { withProvider } from 'use-ctx'\n   import store from './Store'\n   import Page from './Page'\n   \n   function App(){\n     return(\n       \u003cPage /\u003e\n     )\n   }\n   \n   export default withProvider(App)\n   ```\n\n   \n\n5. Map data and function in your store to any Component:\n\n   * for class component, use `consumer` decorator:\n\n   ```jsx\n   import React from 'react'\n   import { consumer } from 'use-ctx'\n   \n   @consumer\n   export default class Page extends React.Component {\n     render(){\n       const {userId, userName, addr:{province,city}, login} = this.props\n       return(\n         \u003cdiv\u003e\n           \u003cdiv className=\"user-id\"\u003e{userId}\u003c/div\u003e\n           \u003cdiv className=\"user-name\"\u003e{userName}\u003c/div\u003e\n           \u003cdiv className=\"addr-prov\"\u003e{province}\u003c/div\u003e\n           \u003cdiv className=\"addr-city\"\u003e{city}\u003c/div\u003e\n           {/* form */}\n           \u003cbutton onClick={login}\u003eLogin\u003c/button\u003e\n         \u003c/div\u003e\n       )\n     }\n   }\n   ```\n\n   * for functional component, use `useCtx` hook:\n\n   ```jsx\n   import React from 'react'\n   import { useCtx } from 'use-ctx'\n   \n   export default function Page(){\n     const {userId, userName, addr:{province,city}, login} = useCtx()\n     return(\n       \u003cdiv\u003e\n         \u003cdiv className=\"user-id\"\u003e{userId}\u003c/div\u003e\n         \u003cdiv className=\"user-name\"\u003e{userName}\u003c/div\u003e\n         \u003cdiv className=\"addr-prov\"\u003e{province}\u003c/div\u003e\n         \u003cdiv className=\"addr-city\"\u003e{city}\u003c/div\u003e\n         {/* form */}\n         \u003cbutton onClick={login}\u003eLogin\u003c/button\u003e\n       \u003c/div\u003e\n     )\n   }\n   ```\n\n   \n\nThat`s all, all you need to do is write a simple store class, and connect to the app with provider, anywhere you need to use the data and function, just use consumer.\n\nOf course，there are some Additional usage:\n\n```js\nimport axios from 'axios'\nimport { exclude } from 'use-ctx'\n// If you don`t want to connect some data to your app, you can use exclude.\nclass Store {\n  userId = 00001\n  userName = zz\n  addr = {\n    province: 'Zhejiang',\n    city: 'Hangzhou'\n  }\n  @exclude temp = 'the data will not be proxied, and not be mapped to your props'\n\n  login() {\n    axios.post('/login', {\n      // login data\n    }).then(({ userId, userName, prov, city }) =\u003e {\n      this.userId = userId\n      this.userName = userName\n      this.addr.province = prov\n      this.addr.city = city\n    })\n  }\n}\nexport default new Store()\n```\n\nBy default, the `use-ctx` will export a provider and consumer from a default Context, if you wan't to use multi Context, just import the Context, and use provider and consumer from it:\n\n```jsx\nc// App.jsx\nimport React from 'react'\nimport Context, {provider} from 'use-ctx'\nimport store from './Store'\nimport store1 from './Store1'\nimport Page from './Page'\nimport Page1 from './Page1'\n\nconst {provider: provider1, consumer: consumer1} = Context\n\n@provider(store)\n@provider1(store1)\nexport default class App extends React.Component {\n  render(){\n    return(\n      \u003cPage /\u003e\n      \u003cPage1 /\u003e\n    )\n  }\n}\n\nexport consumer1\n```\n\n```jsx\n// Page1.jsx\nimport {consumer1} from './App.jsx'\n\n@consumer1\n// ...\n```\n\n\n\nYou want to connect more than store to your app ?  Just add more store to Provider as you want:\n\n```jsx\nimport { provider } from 'use-ctx'\nimport store1 from './Store1'\nimport store2 from './Store2'\nimport store3 from './Store3'\n\n@provider({store1, store2, store3})\n// other code ...\n```\n\nBut you don`t want to map all data and function to the props ? just add keys you want to the consumer:\n\n```jsx\nimport { Consumer } from 'use-ctx'\n\n@consumer('userId', 'userName', 'login')\n// other code ...\n```\n\nOr you can add a function to map the data:\n\n```jsx\nimport { consumer } from 'use-ctx'\n\n@consumer(data =\u003e ({\n  prov: data.addr.provvince,\n  city: data.addr.city\n}))\n// other code ...\n```\n\nWhat about this ?\n\n```jsx\nimport { consumer } from 'use-ctx'\n\n@Consumer('userId',data =\u003e ({\n  prov: data.addr.provvince,\n  city: data.addr.city\n}),'userName')\n// other code ...\n```\n\nYes, just do what you want.\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fevolify%2Fuse-ctx","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fevolify%2Fuse-ctx","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fevolify%2Fuse-ctx/lists"}