## Calculate a distance matrix between points

`routing.matrix(RoutingMatrixParams**kwargs)  -> MatrixResult`

**post** `/api/v1/matrix`

Calculate a distance matrix between points

### Parameters

- `destinations: GeoJsonGeometryParam`

  Destination points (GeoJSON MultiPoint geometry)

  - `coordinates: Union[List[float], List[List[float]], List[List[List[float]]], List[List[List[List[float]]]]]`

    GeoJSON coordinates array (nesting depth varies by geometry type)

    - `List[float]`

    - `List[List[float]]`

    - `List[List[List[float]]]`

    - `List[List[List[List[float]]]]`

  - `type: Literal["Point", "LineString", "Polygon", 3 more]`

    - `"Point"`

    - `"LineString"`

    - `"Polygon"`

    - `"MultiPoint"`

    - `"MultiLineString"`

    - `"MultiPolygon"`

- `origins: GeoJsonGeometryParam`

  Origin points (GeoJSON MultiPoint geometry)

- `mode: Optional[Literal["auto", "foot", "bicycle"]]`

  Travel mode

  - `"auto"`

  - `"foot"`

  - `"bicycle"`

### Returns

- `class MatrixResult: …`

  - `distances: List[List[Optional[float]]]`

    Distance matrix (meters), origins x destinations

  - `durations: List[List[Optional[float]]]`

    Duration matrix (seconds), origins x destinations

### Example

```python
import os
from plaza import Plaza

client = Plaza(
    api_key=os.environ.get("PLAZA_API_KEY"),  # This is the default and can be omitted
)
matrix_result = client.routing.matrix(
    destinations={
        "coordinates": [0],
        "type": "Point",
    },
    origins={
        "coordinates": [0],
        "type": "Point",
    },
)
print(matrix_result.distances)
```

#### Response

```json
{
  "distances": [
    [
      0
    ]
  ],
  "durations": [
    [
      0
    ]
  ]
}
```