# 14. Mutation: Create a "Field" or edit the boundary of the existing field (with optional labels)

Create a "Field" or edit the boundary of the existing field.

{% hint style="danger" %}
"Field" `geojson` attribute must be in WGS84 (EPSG:4326) projection, less 1040ac / 420ha, and follow the [specification](https://geojson.org/).

Supported `geojson` types are `MultiPolygon` and `Polygon`.
{% endhint %}

Usage details:

* Attribute `labels` is a map with key (label name) and value (label value) pairs.
* Linking your own "Farm" unique identification via the \
   attribute is possible. The attribute is optional.
* Attributes `status` and `statusMessage` highlight the result of the registration. The `"status"=INVALID` response means the investigation of the "Field" request is required. More details about the results are in `statusMessage`. 

{% code overflow="wrap" lineNumbers="true" %}

```graphql
mutation CreateFieldSample {
  registerField(
    input: {
      name: "Mutation Field"
      farmUuid: "<farm_uuid_could_be_from_request_7>"
      creationType: GEOJSON
      externalKey: "<third_party_identificator>"
      geojson: "{\"type\":\"MultiPolygon\",\"coordinates\":[[[[-113.5393998,51.1831965],[-113.5391578,51.1832762],[-113.5335114,51.1832724],[-113.5328941,51.1832686],[-113.5324221,51.1831927],[-113.5320832,51.1830486],[-113.5317503,51.182821],[-113.5314901,51.1826047],[-113.5312904,51.1824264],[-113.5309696,51.1823013],[-113.5307034,51.1822637],[-113.5303706,51.1823168],[-113.5300317,51.1823889],[-113.5298017,51.1824344],[-113.5294991,51.1824231],[-113.5292026,51.1823586],[-113.5287789,51.1822675],[-113.5284824,51.1821537],[-113.5282827,51.1820285],[-113.5282343,51.1818502],[-113.5281979,51.1816036],[-113.5280998,51.1789079],[-113.5280331,51.1764057],[-113.5281207,51.1762546],[-113.5282577,51.1761516],[-113.5284275,51.1760863],[-113.528674,51.1760657],[-113.5289096,51.1760554],[-113.5373048,51.1760602],[-113.5375787,51.1760671],[-113.5377704,51.1761083],[-113.5379348,51.1762388],[-113.5379841,51.1764071],[-113.5379567,51.1769634],[-113.5379512,51.1770527],[-113.5393097,51.1770767],[-113.5394631,51.1771248],[-113.5395453,51.1772244],[-113.5395508,51.1773618],[-113.5395398,51.1797725],[-113.5395452,51.1826365],[-113.539539,51.1829293],[-113.5394999,51.1830779],[-113.5393998,51.1831965]]]]}"
      labels: "{\"label1\":\"value1\",\"label2\":\"value2\"}"
    }
  ) {
    uuid
    farmUuid
    name
    boundaryUrl
    status
    statusMessage
    creationType
    labels {
      name
      value
    }
    externalKey
  }
}
```

{% endcode %}

To **Edit** the existing "Field", add the `uuid` attribute to the request. The difference is in the `uuid` attribute defining the "Field" to amend the boundary.

{% code overflow="wrap" lineNumbers="true" %}

```graphql
mutation CreateFieldSample {
  registerField(
    input: {
      uuid: "<placeholder_of_field_uuid>"
      name: "Field_name"
      farmUuid: "<placeholder_of_farm_uuid>"
      creationType: GEOJSON
      geojson: "{\"type\":\"MultiPolygon\",\"coordinates\":[[[[-113.5393998,51.1831965],[-113.5391578,51.1832762],[-113.5335114,51.1832724],[-113.5328941,51.1832686],[-113.5324221,51.1831927],[-113.5320832,51.1830486],[-113.5317503,51.182821],[-113.5314901,51.1826047],[-113.5312904,51.1824264],[-113.5309696,51.1823013],[-113.5307034,51.1822637],[-113.5303706,51.1823168],[-113.5300317,51.1823889],[-113.5298017,51.1824344],[-113.5294991,51.1824231],[-113.5292026,51.1823586],[-113.5287789,51.1822675],[-113.5284824,51.1821537],[-113.5282827,51.1820285],[-113.5282343,51.1818502],[-113.5281979,51.1816036],[-113.5280998,51.1789079],[-113.5280331,51.1764057],[-113.5281207,51.1762546],[-113.5282577,51.1761516],[-113.5284275,51.1760863],[-113.528674,51.1760657],[-113.5289096,51.1760554],[-113.5373048,51.1760602],[-113.5375787,51.1760671],[-113.5377704,51.1761083],[-113.5379348,51.1762388],[-113.5379841,51.1764071],[-113.5379567,51.1769634],[-113.5379512,51.1770527],[-113.5393097,51.1770767],[-113.5394631,51.1771248],[-113.5395453,51.1772244],[-113.5395508,51.1773618],[-113.5395398,51.1797725],[-113.5395452,51.1826365],[-113.539539,51.1829293],[-113.5394999,51.1830779],[-113.5393998,51.1831965]]]]}"
    }
  ) {
    uuid
    farmUuid
    name
    boundaryUrl
    status
    statusMessage
    creationType
  }
}
```

{% endcode %}


---

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