Firebase Firestore clone documents subcolletions & data

Question

With a structure like this:

.doc Name
   .colection 1
       .doc sub_doc
           .colection sub_col1
              .doc sub_doc
   .colection 2
       .doc sub_doc

How can I clone the document(with all of the sub collections etc) in to a new document in Firestore? Basicly creating a 1:1 copy of the document.

Is this a matter of querying the entire document first and rebuilding it from there?

Thanks in advance.

Answer 1

There is no built-in operation to clone a document or collection. You will have to read the document/collection through the API and write the copy through that too.

Also see:

• Cloud Functions: How to copy Firestore Collection to a new document?
• Firestore - Recursively Copy a Document and all it's subcollections/documents (in Python, but with good code to start with)
• Firestore - Creating a copy of a collection (in Swift)