{
"declMainId": 0,
"fileType": 0,
"fileName": "string",
"fileUrl": "string"
}curl --location '/decl/attachment/upload' \
--header 'Content-Type: application/json' \
--data '{
"declMainId": 0,
"fileType": 0,
"fileName": "string",
"fileUrl": "string"
}'{
"code": 0,
"msg": "string",
"data": null,
"other": {}
}