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Better error handling in fetch data

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This commit is contained in:
Vicente J. Ruiz Jurado 2018-08-14 08:55:14 +02:00
parent 1a2cdfd814
commit d3cd6012e6
3 changed files with 17 additions and 21 deletions
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24
lib/redux/fetchDataMiddleware.dart
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@ -149,13 +149,13 @@ void fetchDataMiddleware(Store<AppState> store, action, NextDispatcher next) {
if (action is FetchYourLocationsAction) {
// Use the api to fetch the YourLocations
loadYourLocations().then((localLocations) {
api
.fetchYourLocations(store.state)
.then((List<YourLocation> subscribedLocations) {
// If it succeeds, dispatch a success action with the YourLocations.
// Our reducer will then update the State using these YourLocations.
// print('Subscribed to: ${subscribedLocations.length}');
loadYourLocations().then((localLocations) {
if (subscribedLocations is List) {
// unsubscribe all locally to sync the subs state
localLocations.forEach((location) => location.subscribed = false);
@ -167,30 +167,32 @@ void fetchDataMiddleware(Store<AppState> store, action, NextDispatcher next) {
}).subscribed = true;
});
}
store.dispatch(new FetchYourLocationsSucceededAction(localLocations));
persistYourLocations(localLocations);
localLocations.forEach((yl) {
api
.getFiresInLocation(
state: store.state,
lat: yl.lat,
lon: yl.lon,
distance: yl.distance)
.then((value) {
.getFiresInLocation(
state: store.state,
lat: yl.lat,
lon: yl.lon,
distance: yl.distance)
.then((value) {
yl.currentNumFires = value.numFires;
store.dispatch(new UpdateYourLocationAction(yl));
});
});
store.dispatch(new FetchYourLocationsSucceededAction(localLocations));
persistYourLocations(localLocations);
Completer<Null> completer = action.refreshCallback;
if (completer != null) {
completer.complete(null);
}
});
}).catchError((Exception error) {
}).catchError((onError) {
// If it fails, dispatch a failure action. The reducer will
// update the state with the error.
store.dispatch(new FetchYourLocationsFailedAction(error));
store.dispatch(new FetchYourLocationsFailedAction(onError));
});
}