Transform Firestore Types

transformFirestoreTypes.ts

const transformFirestoreTypes = (obj: any): any => {
   Object.keys(obj).forEach(key => {
      if (!obj[key]) return
      if (typeof obj[key] === 'object' && 'toDate' in obj[key]) {
         obj[key] = obj[key].toDate().getTime()
      } else if (obj[key].constructor.name === 'GeoPoint') {
         const { latitude, longitude } = obj[key]
         obj[key] = { latitude, longitude }
      } else if (obj[key].constructor.name === 'DocumentReference') {
         const { id, path } = obj[key]
         obj[key] = { id, path }
      } else if (typeof obj[key] === 'object') {
         transformFirestoreTypes(obj[key])
      }
   })
   return obj
}