Deciders
- Decides if this effect should process this action (ofType)
- Can map an action to a different action
- 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$.pipe(
ofType<SaveUser>(UserActionTypes.SaveUser),
map(action => {
if (action.payload.user.id > 0) {
return new UpdateUser(action.payload);
} else {
return new InsertUser(action.payload);
}
})
);
// Effect store based decider
@Effect()
save = this.actions$.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);
}
}));
Last modified 3yr ago