asyncpg.exceptions.DataError: invalid input for query argument python

Question

I have a problem insert to PostgreSQL. The column I'm trying to insert is of type JSONB. The type of the object is Counter().

In production it is working, but locally it raises the following error:

asyncpg.exceptions.DataError: invalid input for query argument $16: Counter({'clearmeleva': 1, 'cr7fragrance... (expected str, got Counter)

Thank you!

Answer 1

As stated in asyncpg documentation, the corresponding Python type for JSON and JSONB is a string.
So if the column where you want to add your data is of type JSONB, try to convert your Counter-type object to a string

new_counter_type_obj = str(counter_type_obj)

and then pass it to asyncpg.