added TYPES constants

README.md

@@ -49,6 +49,11 @@ const asyncActions = {
 const testReducerCreator = easyReducerCreator(defaultState, syncActions, asyncActions)
 // testReducer1 now has all the action creators you would use for your methods, with the types TR1/methodName
 export const testReducer1 = testReducerCreator('TR1')
+
+// generated types as constants for reference with RXJS epics or whatever
+// EG: {testDataPlusNum: 'TR1/testDataPlusNum', testDataPlusTwoNum: 'TR1/testDataPlusTwoNum'}
+console.log(testReducer1.TYPES) 
+
 // Reducers are reusable with different ID's
 export const testReducer2 = testReducerCreator('TR2')
 

src/__tests__/reducerCreator.test.ts

@@ -1,4 +1,3 @@
-
 import reducerCreator from '../reducerCreator'
 import { createStore, applyMiddleware, combineReducers } from 'redux'
 import thunk from 'redux-thunk'
@@ -14,6 +13,14 @@ describe('reducerCreator', () => {
   it('should throw an error if there is no default state', () => {
     expect(() => (reducerCreator as any)()('ID')).toThrowError('Reducers must have a default state')
   })
+  it('should throw an error if you you try to name your action `TYPES`', () => {
+    expect(() => (reducerCreator as any)({}, {TYPES: ''})('ID'))
+      .toThrowError(`You cannot have an action called 'TYPES'`)
+  })
+  it('should throw an error if you you try to name your action `reducer`', () => {
+    expect(() => (reducerCreator as any)({}, {reducer: ''})('ID'))
+    .toThrowError(`You cannot have an action called 'reducer'`)
+  })
   describe('sync actions', () => {
     let testReducer
     let defaultState = {
@@ -37,6 +44,13 @@ describe('reducerCreator', () => {
       expect(testReducer.testDataPlusManyNumbers(1, 2, 3, 4))
         .toEqual({type: 'ID/testDataPlusManyNumbers', payload: [1, 2, 3, 4]})
     })
+    it('should have type constansts', () => {
+      expect(testReducer.TYPES).toEqual({
+        'testDataPlus1': 'ID/testDataPlus1',
+        'testDataPlusNumber': 'ID/testDataPlusNumber',
+        'testDataPlusManyNumbers': 'ID/testDataPlusManyNumbers'
+      })
+    })
   })
   describe('reducing', () => {
     let testReducer

src/reducerCreator.ts

@@ -3,6 +3,11 @@ export interface IReducer {
   reducer: Function
 }
 
+const restrictedActionNames = {
+  TYPES: true,
+  reducer: true
+}
+
 export default function makeReducer
 <ISubState, T, V>
 (defaultState: ISubState, Actions?: T, AsyncActions?: V): (ID: string) => V & T & IReducer {
@@ -16,14 +21,18 @@ export default function makeReducer
 
     const newSyncActions: T & IReducer = merge(({} as IReducer), Actions)
     const newAsyncActions: V = merge({}, AsyncActions)
-
+    const TYPES = {}
     // Actions are now functions that auto return types
     Object.keys(Actions).forEach((key) => {
-      (newSyncActions[key]) = (...payload: any[]) => {
-        return { type: `${ID}/${key}`, payload }
+      if (restrictedActionNames[key]) {
+        throw new Error(`You cannot have an action called '${key}'`)
+      }
+      const type = `${ID}/${key}`
+      TYPES[key] = type
+      newSyncActions[key] = (...payload: any[]) => {
+        return { type, payload }
       }
     })
-
     if (AsyncActions) {
       // async actions have dispatch and the payload injected into them.
       Object.keys(AsyncActions).forEach((key) => {
@@ -37,6 +46,7 @@ export default function makeReducer
       })
     }
     const baseReducer = {
+      TYPES,
       reducer: (state: ISubState, action: {type: string, payload?: any}) => {
         state = state || defaultState
         /* tslint:disable */