## Match GPS coordinates to the road network

`$ plaza map-match match`

**post** `/api/v1/map-match`

Match GPS coordinates to the road network

### Parameters

- `--trace: object { coordinates, type }`

  GPS trace (GeoJSON LineString geometry)

- `--radius: optional array of number`

  Search radius per coordinate in meters (optional, default 50)

### Returns

- `map_match_result: object { geometry, properties, type, legs }`

  Map matching result with snapped geometry

  - `geometry: object { coordinates, type }`

    - `coordinates: array of number or array of array of number or array of array of array of number or array of array of array of array of number`

      GeoJSON coordinates array (nesting depth varies by geometry type)

      - `union_member_0: array of number`

      - `union_member_1: array of array of number`

      - `union_member_2: array of array of array of number`

      - `union_member_3: array of array of array of array of number`

    - `type: "Point" or "LineString" or "Polygon" or 3 more`

      - `"Point"`

      - `"LineString"`

      - `"Polygon"`

      - `"MultiPoint"`

      - `"MultiLineString"`

      - `"MultiPolygon"`

  - `properties: object { confidence, distance, duration }`

    - `confidence: optional number`

      Match confidence score

    - `distance: optional number`

      Total matched distance in meters

    - `duration: optional number`

      Estimated duration in seconds

  - `type: "Feature"`

    - `"Feature"`

  - `legs: optional array of map[unknown]`

    Matched route legs between consecutive trace points

### Example

```cli
plaza map-match match \
  --api-key 'My API Key' \
  --trace '{coordinates: [0], type: Point}'
```