curl --location -g --request POST 'https://www.h3yun.com/OpenApi/UploadAttachment?SchemaCode=&ChildSchemaCode=&FilePropertyName=F0000019&BizObjectId=' \ --header 'EngineCode: ' \ --header 'EngineSecret: ' \ --form 'file=@""'
{ "Successful": true, "ErrorMessage": null, "Logined": true, "ReturnData": { "AttachmentId": "f2418820-e818-4e92-9109-3fcab3a0211b" } }