Understanding Typescript-fsa
Consider: const createAction = actionCreatorFactory('WIDGET'); export const fetchData = createAction.async<{ tld: string }, WidgetDTO>('FETCH'); createAction.async() takes 3 param types as follows and also a namespace (at end): params type success type error type createAction.async() returns an object with type and 3 functions: { type: "WIDGET/FETCH", started: ƒ, done: ƒ, failed: ƒ } Now if you call object.started() like so: fetchData.started({input: 'my param'}) ...it will return an action as follows. Note the type value { type: "WIDGET/FETCH_STARTED", payload: { input: "my param" } } If you call done() like so fetchData.done({ params: { tld: 'param passed' }, result: { publicUrl: 'string', tld: 'string', }})); ...it will return an action as follows. Note the type value { type: "WIDGET/FETCH_DONE", payloa