firebase - Get the size/number of fields of a particular document in Firestore using flutter

Question

Is there any way to get the size of a particular document in Firestore using flutter? I need the number of fields in a particular document.

I'm trying to get the total number of fields in a particular document , however i can retrieve the number of documents in a collection but not the number of fields in a document .

Answer 1

As an alternative, you could keep track of the number of fields of each document in a separate document. Suppose a document has two fields

document_1
    name_field
    age_field

then in a separate collection we keep track of the number of fields, using the same document id:

document_field_count
   document_1
      count: 2