# ETAs for trips in future

_Implement Using_: [Distance Matrix Flexible API](https://docs.nextbillion.ai/routing/distance-matrix-api/synchronous#distance-matrix-flexible-api)



For a Distance Matrix Flexible request with 4 `origins` (O) and 3 `destinations` (D) we will get a 4 x 3 matrix with `distance` and `duration` values for all 12 combinations (or elements) of O x D pairs. We configure the following parameters

-   `option` as “flexible”
-   `mode` set to “truck” to get distance and duration values for a route that a truck can take
-   `departure_time` set to a time in future

### Request

```bash
curl --location 'https://api.nextbillion.io/distancematrix/json?origins=34.05456317,-118.31528428|33.99167000,-118.25687955|34.00792776,-118.33063151|33.94535370,-118.33148414&destinations=33.96763110,-118.23215346|33.93969502,-118.26583210|33.90184293,-118.19634326&mode=truck&key=<your_api_key>&option=flexible&departure_time=1685371968'
```

### Response

```json
{
   "status": "Ok",
   "rows": [
       {
           "elements": [
               {
                   "duration": {
                       "value": 2061
                   },
                   "distance": {
                       "value": 16216
                   }
               },
               {
                   "duration": {
                       "value": 2087
                   },
                   "distance": {
                       "value": 18503
                   }
               },
               {
                   "duration": {
                       "value": 2209
                   },
                   "distance": {
                       "value": 30885
                   }
               }
           ]
       },
       {
           "elements": [
               {
                   "duration": {
                       "value": 735
                   },
                   "distance": {
                       "value": 4715
                   }
               },
               {
                   "duration": {
                       "value": 977
                   },
                   "distance": {
                       "value": 6720
                   }
               },
               {
                   "duration": {
                       "value": 1769
                   },
                   "distance": {
                       "value": 19741
                   }
               }
           ]
       },
       {
           "elements": [
               {
                   "duration": {
                       "value": 1999
                   },
                   "distance": {
                       "value": 13314
                   }
               },
               {
                   "duration": {
                       "value": 1788
                   },
                   "distance": {
                       "value": 13594
                   }
               },
               {
                   "duration": {
                       "value": 2389
                   },
                   "distance": {
                       "value": 30820
                   }
               }
           ]
       },
       {
           "elements": [
               {
                   "duration": {
                       "value": 1665
                   },
                   "distance": {
                       "value": 17370
                   }
               },
               {
                   "duration": {
                       "value": 960
                   },
                   "distance": {
                       "value": 6761
                   }
               },
               {
                   "duration": {
                       "value": 1515
                   },
                   "distance": {
                       "value": 18168
                   }
               }
           ]
       }
   ]
}
```