wip

CHANGELOG.md

@@ -0,0 +1,23 @@
+# [2.1.0](https://github.com/omichelsen/redux-promise-middleware-actions/compare/v2.0.0...v2.1.0) (2019-08-21)
+
+
+### Bug Fixes
+
+* **test:** add rejected reason ([375b379](https://github.com/omichelsen/redux-promise-middleware-actions/commit/375b379))
+
+
+### Features
+
+* **meta:** add metadata support ([3643edf](https://github.com/omichelsen/redux-promise-middleware-actions/commit/3643edf))
+
+
+
+# [2.0.0](https://github.com/omichelsen/redux-promise-middleware-actions/compare/b3f843d...v2.0.0) (2018-08-16)
+
+
+### Features
+
+* **ts:** use generic rest params with TS 3.0 ([b3f843d](https://github.com/omichelsen/redux-promise-middleware-actions/commit/b3f843d))
+
+
+

README.md

@@ -98,6 +98,30 @@ Note that if you try and use the base function in a reducer, an error will be th
 case String(fetchData): // throws an error
 ```
 
+### Reducer
+
+To create a type safe reducer `createReducer` takes a list of handlers that accept one or more actions and returns the new state.
+
+```js
+import { createAction, createReducer } from 'redux-promise-middleware-actions';
+
+const increment = createAction('INCREMENT');
+const decrement = createAction('DECREMENT');
+const reset = createAction('RESET', (count: number) => count);
+
+const defaultState = 0;
+
+const reducer = createReducer(defaultState, handleAction => [
+  handleAction(increment, state => state + 1),
+  handleAction(decrement, state => state - 1),
+  handleAction(reset, (_state, { payload }) => payload),
+]);
+
+reducer(undefined, increment()); //=> 1
+reducer(undefined, decrement()); //=> -1
+reducer(3, reset(0)); //=> 0
+```
+
 ### Async reducer
 
 You can now handle the different events in your reducer by referencing the possible outcome states:
@@ -212,3 +236,7 @@ dispatch(foo());
 // { type: 'FETCH_DATA/FULFILLED', payload: ... }
 // { type: 'FETCH_DATA/REJECTED', payload: ... }
 ```
+
+## Acknowledgements
+
+Thanks to [Deox](https://github.com/thebrodmann/deox/) for a lot of inspiration for the TypeScript types.