X-User-Token: ********************curl --location 'https://api.flashcat.cloud/api/n9e/auth/refresh' \
--header 'X-User-Token: <api-key>' \
--header 'Content-Type: application/json' \
--data '{
"refresh_token": "string"
}'{
"dat": {
"access_token": "",
"refresh_token": ""
},
"err": ""
}