Class FeatureTypeAPI

const featureTypes = [
  {
     externalId: 'ocean_temperature',
     properties: { temperature: { type: 'DOUBLE' as const }, location: { type: 'POINT' as const, srid: 4326 } } ,
     searchSpec: { location_idx: { properties : ['location'] } }
  }
];
const createdFeatureTypes = await client.geospatial.featureType.create(featureTypes);

await client.geospatial.featureType.delete([{ externalId: 'ocean_temperature'}], { recursive : true });

const allFeatureTypes = await client.geospatial.featureType.list();

const retrievedFeatureTypes = await client.geospatial.featureType.retrieve([ { externalId: 'ocean_temperature' } ]);

const featureTypesToUpdate = [
 {
   externalId: 'ocean_temperature',
   update: {
       properties: { add: { depth: { type: 'DOUBLE'} }, remove: ['temperature'] },
       searchSpec: { add: { depth_idx: { properties: ['depth'] } } }
   }
 }
];
const updatedFeatureTypes = await client.geospatial.featureType.update(featureTypesToUpdate);