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`duck-magic`\n\n[![Travis](https://img.shields.io/travis/azz/duck-magic.svg?style=flat-square)](https://travis-ci.org/azz/duck-magic)\n[![Prettier](https://img.shields.io/badge/code_style-prettier-ff69b4.svg?style=flat-square)](https://github.com/prettier/prettier)\n[![npm](https://img.shields.io/npm/v/duck-magic.svg?style=flat-square)](https://npmjs.org/duck-magic)\n[![semantic-release](https://img.shields.io/badge/%20%20%F0%9F%93%A6%F0%9F%9A%80-semantic--release-e10079.svg?style=flat-square)](https://github.com/semantic-release/semantic-release)\n[![License](https://img.shields.io/badge/license-MIT-blue.svg?style=flat-square)](LICENSE)\n\n\u003e Utilities for Ducks - Modular Redux\n\nThe library is a small set of utilities for managing ducks written to the **[Ducks Modular Redux](https://github.com/erikras/ducks-modular-redux)** design. However, to reduce the boilerplate, the interface for a \"duck\" when using this library is:\n\n```ts\ninterface Duck\u003cState\u003e {\n  reducer: (state: State, action) =\u003e State;\n  actions: Record\u003cstring, Function\u003e;\n  selectors: Record\u003cstring, (state: State) =\u003e any\u003e;\n}\n```\n\n## Install\n\nWith `yarn`:\n\n```shellsession\nyarn add duck-magic\n```\n\nWith `npm`:\n\n```shellsession\nnpm install --save duck-magic\n```\n\n## Example\n\n```js\n// ducks/math.js\nconst ADD = 'ADD';\nconst SUB = 'SUB';\n\nexport const reducer = (state = 0, { type, payload }) =\u003e {\n  switch (type) {\n    case ADD:\n      return state + payload;\n    case SUB:\n      return state - payload;\n    default:\n      return state;\n  }\n};\n\nexport const actions = {\n  add: value =\u003e ({ type: ADD, payload: value }),\n  subtract: value =\u003e ({ type: SUB, payload: value }),\n};\n\nexport const selectors = {\n  isEven: state =\u003e state % 2 === 0,\n  getValue: state =\u003e state,\n};\n```\n\nThen in your index file:\n\n```js\n// ducks/index.js\nimport {\n  composeActionCreators,\n  composeSelectors,\n  createRootReducer,\n} from 'duck-magic';\n\nimport * as math from './math';\n\nconst ducks = {\n  math,\n  // the rest of your ducks...\n};\n\nexport const rootReducer = createRootReducer(ducks);\nexport const actions = composeActionCreators(ducks);\nexport const selectors = composeSelectors(ducks);\n```\n\nAnd finally, in your component:\n\n```js\nimport { connect } from 'react-redux';\nimport { selectors, actions } from '../ducks';\n\nfunction Counter({ value, onAdd, onSubtract }) {\n  // ...\n}\n\nconst mapState = state =\u003e {\n  value: selectors.math.getValue(state),\n};\nconst mapDispatch = {\n  onAdd: actions.math.add,\n  onSubtract: actions.math.subtract,\n};\n\nexport default connect(\n  mapState,\n  mapDispatch,\n)(Counter);\n```\n\n## API\n\n## `composeActionCreators(ducks, [extraActionCreators])`\n\nGiven an object containing ducks as values, returns another object whose values are the `actions` property of each duck.\n\n## `composeSelectors(ducks, [extraSelectors])`\n\nGiven an object containing ducks as values, returns another object whose values are the `selectors` property of each duck. The portion of state under the duck's key will be passed to the underlying selector.\n\n## `createRootReducer(ducks, [extraReducers])`\n\nGiven an object containing ducks as values, returns a function that is the result of calling Redux's `combineReducers` on all the `reducer`s.\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fazz%2Fduck-magic","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fazz%2Fduck-magic","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fazz%2Fduck-magic/lists"}