Deciders

  • Decides if this effect should process this action (ofType)

  • Can map an action to a different action

Content Deciders

  • Inspect the payload to decide how to process action

  • Can inspect payloads, environmental variables, or store values.

  • Can map an action to a different action based on payload

@Effect()
save = this.actions$.pipe(
ofType<SaveUser>(UserActionTypes.SaveUser),
map(action => {
if (action.payload.user.id > 0) {
return new UpdateUser(action.payload);
} else {
return new InsertUser(action.payload);
}
})
);
‚Äč
// Effect store based decider
@Effect()
save = this.actions$.pipe(
ofType<LoadUserById>(UserActionTypes.SaveUser),
withLatestFrom(this.store.pipe(select(getSelectedUserId))),
map(([action, userId]) => {
if (userId > 0) {
return new UpdateUser(action.payload);
} else {
return new InsertUser(action.payload);
}
}));