concurrent inserts to different tables in the same file

[drew2323]

I have few parallel threads running and inserting data into their own table in tinydb, but sharing the same json db file. Is this supported scenario?

[MrPigss]

See this page on the docs: Why Not Use TinyDB.
One of the first things it says is:

You need advanced features like:

• access from multiple processes or threads

This doesn't mean it's not possible but you'll have to make sure you use locks appropriately.