I haven’t found more or less useful example how to use add_file_to_column in GraphQL, so I have tried the following code.

`

mutation add_file{

	add_file_to_column(

		item_id:2438299131, 

		column_id: "dup__of_prd", 

		file: {url:"https://gdlp01.c-wss.com/gds/0/0300004730/02/eosrt3-eos1100d-im2-c-en.pdf"}

	)

	{id}     

}

`

I got 500 Internal server error and it is more understandable issue during my exercises.

Can you help me to understand the mistake or share good examples how to call add_file_to_column in the tight way?

The most critical for me is understanding the using of File! parameter/variable.