create prefixActionCreator

Author: jedwards1211

README.md

@@ -88,3 +88,25 @@ reducer({}, {type: 'COUNTER_1.INCREMENT'}) // {counter1: 1}
 reducer({counter1: 3, counter2: 3}, {type: 'COUNTER_1.DECREMENT'}) // {counter1: 2, counter2: 3}
 reducer({counter1: 3, counter2: 3}, {type: 'COUNTER_2.INCREMENT'}) // {counter1: 3, counter2: 4}
 
+## prefixActionCreator(prefix: string): (actionCreator: ActionCreator) => ActionCreator
+```js
+import {prefixActionCreator} from 'mindfront-redux-utils';
+```
+
+An action creator decorator that prepends `prefix` to the `type` of the created actions.
+
+### Example
+import {prefixActionCreator} from 'mindfront-redux-utils'
+
+function setEntry(key, value) {
+  return {
+    type: 'SET_ENTRY',
+    payload: value,
+    meta: {key}
+  }
+}
+
+const setConfigEntry = prefixActionCreator('CONFIG.')(setEntry)
+
+setConfigEntry('hello', 'world').type // CONFIG.SET_ENTRY
+

src/index.js

@@ -6,6 +6,7 @@ import createMiddleware from './createMiddleware'
 import composeMiddleware from './composeMiddleware'
 import createPluggableMiddleware from './createPluggableMiddleware'
 import prefixReducer from './prefixReducer'
+import prefixActionCreator from './prefixActionCreator'
 
 export {
   createReducer,
@@ -14,5 +15,6 @@ export {
   composeMiddleware,
   createPluggableMiddleware,
   prefixReducer,
+  prefixActionCreator,
 }
 

src/prefixActionCreator.js

@@ -0,0 +1,10 @@
+export default function prefixActionCreator(prefix) {
+  return actionCreator => (...args) => {
+    const action = actionCreator(...args)
+    return {
+      ...action,
+      type: prefix + action.type,
+    }
+  }
+}
+

test/createReducerTests.js test/createReducerTest.jstest/createReducerTests.js renamed to test/createReducerTest.js

@@ -0,0 +1,22 @@
+import {expect} from 'chai'
+import prefixActionCreator from '../src/prefixActionCreator'
+
+describe('prefixActionCreator', () => {
+  it('works', () => {
+    function setEntry(key, value) {
+      return {
+        type: 'SET_ENTRY',
+        payload: value,
+        meta: {key}
+      }
+    }
+
+    expect(prefixActionCreator('TEST.')(setEntry)('hello', 'world')).to.deep.equal({
+      type: 'TEST.SET_ENTRY',
+      payload: 'world',
+      meta: {key: 'hello'}
+    })
+  })
+})
+
+