curl --location --request POST 'http://127.0.0.1:3000/get_private_file_url' \
--header 'Content-Type: application/json' \
--data-raw '{
"file_id": "string",
"user_id": 0
}'
{
"status": "string",
"retcode": 0,
"data": {
"url": "string"
},
"message": "string",
"wording": "string"
}