User script to add attachment to data source

[AW1]

I use a MID Server script include to edit a file, then add to a data source. It runs and no error occurred. However, I don't see the attachment added on the data source. Any idea why? Here is my script:

var header = ("account" + "\n");

this.log("Trying to download file.");
var RemoteFileName = "STATUS_FILE.csv";
sftp.get(RemoteFileName, output);

//delete the existing attachments
this.log("Deleting existing attachments.");
var gr = new GlideRecord('sys_data_source');
gr.addQuery('sys_id', this.dataSourceID);
gr.query();
 if (gr.next()) {
 attachment.deleteAll(gr);
 }
if (gr.next()) {
//set up input stream
this.log("Setting up input stream. ");
var strOutput = (header + Packages.java.lang.String(output));
this.log("output= " + strOutput);
var base64EncodeString = this.StringUtil.base64Encode(strOutput);
var input = this.StringUtil.base64DecodeAsBytes(base64EncodeString);

//set up the attachment
var attachment = Packages.com.glide.ui.SysAttachment();
attachment.setTableName('sys_data_source'); //table name of the record this is being attached to
attachment.setTableSysID(this.dataSourceID); //sys_id of the data source record this is being attached to
attachment.setFileName(this.filename); //the name of the file as it should appear after it's uploaded
attachment.setContentType(this.contentType);

//save the new attachment
this.log("Saving new attachment."); //attach the attachment.
// var attachment = new Attachment();
// var attachment_sys_id = attachment.write("sys_data_source", this.dataSourceID, "1111.csv", "test/csv", decodedData);
attachment.setInputStream(input);
attachment.write();

}

} catch (e) {
this.log("File download failed. Disconnecting. error: " + e);
return false;
}
sftp.quit();
ssh.disconnect();

return true;
},

log: function(data) {
ms.log(data);
},

[Liz26]

Hi, did you manage to achieve this? I have a similar requirement and need help please

[AW1]

Here is a KB article https://support.servicenow.com/kb?id=kb_article_view&sysparm_article=KB0817437