Typesafe Action Creator

This super simple library enables you to create dirt cheap and simple typesafe action creators, that uses type inference and no dark magic or type tricks.

For example:

const setName = createAction("SET_NAME")<string>();

const action1 = setName("Jarl"); // compiles

const action2 = setName(1); // does NOT compile

in addition you can omit payload type and it will create an action creator that renders an empty action, with no payload value or type.

const doStuff = createAction("DO_STUFF")();

const action3 = doStuff(); // compiles, because of no type provided above

for all action creators created by this library you get a getType(): T and toString(): T method. This is especially handy in reducers. You will never have to think about those type constants again.

switch(action.type) {
 case doStuff.getType():
   // do stuff
   break:
 default:
   break;
}

You can also create an async action creator object, containing three action creator functions, request, success and failure.

const loadUserById = createAsyncAction(
  "LOAD_USER_BY_ID_START",
  "LOAD_USER_BY_ID_SUCCESS",
  "LOAD_USER_BY_ID_FAILURE",
)<void, User, Error>();

const successAction = loadUserById.success(someUser);
const failureAction = loadUserById.failure(new Error());
const requestAction = loadUserById.request();

Have fun!