Leaflet Routing API: retrieve the legs data - leaflet

Question

I use the Leaflet Routing API, connected to Mapbox, to display a route with several waypoints.
Now, I have to retrieve the distance and the time between these waypoints for some calculations...
I see that the api.mapbox.com/directions API (called via Leaflet) receives as result an array of legs between my waypoints, and all data I need (legs'' distance and duration):
routes: [,…]
0: {legs: [{summary: "A 35, D 415", weight: 4813.6, duration: 4594.8,…},…], weight_name: "routability",…}
distance: 447598.9
duration: 22889.300000000003
legs: [{summary: "A 35, D 415", weight: 4813.6, duration: 4594.8,…},…]
0: {summary: "A 35, D 415", weight: 4813.6, duration: 4594.8,…}
distance: 101906.2
duration: 4594.8
steps: [{intersections: [{out: 0, entry: [true], bearings: [301], location: [7.761832, 48.592052]},…],…},…]
summary: "A 35, D 415"
1: {summary: "D 18bis, D 1bis", weight: 2070.1, duration: 1890.6,…}
distance: 28743.3
duration: 1890.6
steps: [{intersections: [{out: 0, entry: [true], bearings: [310], location: [7.538932, 47.928985]}],…},…]
summary: "D 18bis, D 1bis"
weight: 2070.1
2: {summary: "D 83, N 66", weight: 5097, duration: 4510.1,…}
...
I catch this result with a "routesfound" event, but I don't retrieve the legs from the result set:
{route: {…}, alternatives: Array(0), type: "routeselected", target: e, sourceTarget: e}
alternatives: []
route:
coordinates: (8188) [M, M, M, M, M, M, M, M, …]
inputWaypoints: (6) [e, e, e, e, e, e]
instructions: (104) [{…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, …]
name: "A 35, D 415, D 18bis, D 1bis, D 83, N 66, Rue du Ballon d'Alsace, D 465, La Comtoise, L'Alsacienne"
properties: {isSimplified: true}
routesIndex: 0
summary:
totalDistance: 447598.9
totalTime: 22889.300000000003
__proto__: Object
waypointIndices: (6) [0, 1611, 2100, 3485, 5808, 8187]
waypoints: (6) [e, e, e, e, e, e]
__proto__: Object
sourceTarget: e {options: {…}, _router: e, _plan: e, _requestCount: 1, _formatter: e, …}
target: e {options: {…}, _router: e, _plan: e, _requestCount: 1, _formatter: e, …}
type: "routeselected"
Is there a way to access the native result via Leaflet, or am I forced to do a duplicate call to the Mapbox API to bypass Leaflet ?

Answer 1

I have the same problem and I tried to get the response of the router. After digging into the code I found the _pendingRequest that hold the router XML HTTP request
ACTIVE_DAY_ROUTE = L.Routing.control({
show: false,
waypoints: routeWaypoints,
router: ROUTER,
routeWhileDragging: false,
draggableWaypoints: false,
lineOptions: {
styles: [{
color: ROUTE_COLOR,
opacity: ROUTE_OPACITY,
weight: 4
}]
},
createMarker: function() {
return null;
}
});
console.log(ACTIVE_DAY_ROUTE._pendingRequest.response);
I succeed to get it on console.log but can't get the response attribute (perhaps because it is pending or finished when I try to get the value)
UPDATE:
I hacked the _convertRoute method to include legs in it
var result = {
name: '',
coordinates: [],
instructions: [],
legs: '', // HACK HERE
summary: {
totalDistance: responseRoute.distance,
totalTime: responseRoute.duration
}
},
result.legs = responseRoute.legs; // HACK HERE - Affect leg