# 14. Mutation : créer un « Field » ou modifier la limite de la parcelle existante (avec étiquettes facultatives)

Créez un « Champ » ou modifiez la limite du champ existant.

{% hint style="danger" %}
« Champ » `geojson` l'attribut doit être en projection WGS84 (EPSG:4326), inférieur à 1040ac / 420ha, et suivre le [spécification](https://geojson.org/).

Pris en charge `geojson` types sont `MultiPolygon` et `Polygon`.
{% endhint %}

Détails d'utilisation :

* Attribut `étiquettes` est une carte avec des paires clé (nom de l'étiquette) et valeur (valeur de l'étiquette).
* Il est possible de lier votre propre identification unique de « Ferme » via l'attribut \
  . L'attribut est optionnel.
* Attributs `status` et `statusMessage` met en évidence le résultat de l'enregistrement. Le `« status"=INVALID` la réponse signifie qu'une investigation de la demande de « Champ » est requise. Plus de détails sur les résultats se trouvent dans `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
    nom
    boundaryUrl
    status
    statusMessage
    creationType
    labels {
      nom
      value
    }
    externalKey
  }
}
```

{% endcode %}

Pour **Modifier** le « Champ » existant, ajoutez l' `uuid` attribut à la requête. La différence se situe dans l' `uuid` attribut définissant le « Champ » pour modifier la limite.

{% 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
    nom
    boundaryUrl
    status
    statusMessage
    creationType
  }
}
```

{% endcode %}


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