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readme.md

kreighter

Build Status Coverage Status

A utility for generating Redux action creators.

Install

$ npm install --save kreighter

Usage

import { fromType, } from 'kreighter';

const toggleFoo = fromType('TOGGLE_FOO');

toggleFoo();
// -> { type: 'TOGGLE_FOO', }
import { fromType, } from 'kreighter';

const fetchBarSuccess = fromType('FETCH_BAR_SUCCESS', [ 'id', 'response', ]);

fetchFooSuccess(1, { ... });
// -> { type: 'FETCH_BAR_SUCCESS', id: 1, response: { ... }, }
import { fromType, } from 'kreighter';
import { toTitleCase, } from './util';

const formatTitle = (id, title) => ({
  id,
  title: toTitleCase(title),
});

const updateBazTitle = fromType('UPDATE_BAZ_TITLE', formatTitle);

updateBazTitle(1, 'foo bar baz');
// -> { type: 'UPDATE_BAZ_TITLE', id: 1, title: 'Foo Bar Baz', }
import { fromMap, } from 'kreighter';

const destroy = fromMap(
  {
    foo: 'DESTROY_FOO',
    bar: 'DESTROY_BAR',
    baz: 'DESTROY_BAZ',
  },
  [ 'id', ]);

destroy.foo(1); // -> { type: 'DESTROY_FOO', id: 1, }
destroy.bar(2); // -> { type: 'DESTROY_BAR', id: 2, }
destroy.baz(3); // -> { type: 'DESTROY_BAZ', id: 3, }

API

fromType(type, withFields)

Takes an action type and an optional action fields definition. Returns an action creator for the given action type.

type

Type: String

The value set as the action's type property. The type of type is not enforced but there are good reasons to use a string constant.

withFields

Type: [String] | (*...) -> Object

Arbitrary fields can be set on the action through the withFields option. withFields supports one of two types:

  • An array of field names.
  • A function that returns an arbitrary object.

If withFields is an array, each action creator argument is paired with the field name in the same position, and this set of key/value pairs is merged into the created action.

If withFields is a function, it should map action creator arguments to an arbitrary object that is merged with the created action.

fromMap(typeMap, withFields)

Takes an object map of action types and an optional map function. Returns an object map of action creators, one for each action type.

typeMap

Type: { k: String }

An object map of arbitrary keys and action type values. The key for each action type is used as the key for the corresponding action creator on the returned object map.

withFields

Type: [String] | (*...) -> Object

Arbitrary fields can be set on the action through the withFields option. withFields supports one of two types:

  • An array of field names.
  • A function that returns an arbitrary object.

If withFields is an array, each action creator argument is paired with the field name in the same position, and this set of key/value pairs is merged into the created action.

If withFields is a function, it should map action creator arguments to an arbitrary object that is merged with the created action.

License

MIT © Max Hallinan

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A utility for generating Redux action creators.

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