I have been trying to add data to sections in my firestorm database, I have a collection -> document -> data fields. Whenever I use setData({'key': 'value'}) is always overwrites the data already in the document. Is there anyway around this?
2 Answers
That is because what setData(object) is used for
To create or overwrite a single document
While update(object)
To update some fields of a document without overwriting the entire document
So what you need is to use update()
1 Comment
Sam H
Thanks, Ill be sure to use that. But I figured out what I really needed to do was setup a collection inside the documents.
Using merge: true in your setData() statement prevents overwrite. This seems similar to the update() method but you can use it even when document does not exist (ie is being created).
