Error while decoding attachment in base64

[FredericoM]

Hello,

I am trying to create a Scripted REST Resource to receive attachments for a scoped application. The attachments are sent encoded in base64. It is working correctly when receiving .txt documents, but when receiving other types of attachments like jpeg or pdf, the file is attached but when performing a subsequent download, the file is corrupted.

here is my code:

(function process(/*RESTAPIRequest*/ request, /*RESTAPIResponse*/ response) {

	var ticket = request.pathParams.ticketId;
        var body = request.body.data;
	var attachment;
	
	try{
		attachment = body.anexos;

		var gr = new GlideRecord 		
		('x_cdpdf_uai_200_item_de_integracao');
		gr.addQuery ('ticket_externo', ticket);
		gr.query();

		if (!gr.hasNext()){
			throw new Error ('Ticket não localizado.');
		}

		if (gr.next()){

				//Tratar anexos
				attachment.forEach(item =>
					{
						var anexo = new GlideSysAttachment();
						var decodeData = gs.base64Decode(item.arquivo);
						anexo.write(gr, item.nomeArquivo, decodeData);
					});			
				gr.work_notes = "Attachment received";
				gr.update();

				response.setStatus(200);
				response.setBody({
					message: "Attachment received"
					
				});
		}
	} catch(e){	
		response.setStatus(400);
		response.setBody({error: "Erro ao incluir uma conversa." + e.message});
		return;
	}
})(request, response);

Any suggestion of what might be wrong?

[Sateesh Kumar D]

Hello,

To the function .write it is suppose to have 4 parameters, make sure content type is correctly passed below is the list of for parameters in the order of arguments to the function .write as in docs

Name	Type	Description
record	GlideRecord	Record to which to attach the attachment.
fileName	String	Attachment file name.
contentType	String	MIME type of the attachment, such as image/png. Located in the Attachment [sys_attachment] table in the Content type field.
content	String	Attachment content.

[FredericoM]

Hi,

Thanks for the tip. I changed the line to include the MIME Type but the error remains the same.

[Sateesh Kumar D]

Can you check your scope, is it global or specific scope? If you are working on a scope then you might have to check functions specific to stopped GlideSysAttachment

[VigneshMC]

There is another function to write base64 directly , can you try that ?

writeBase64(GlideRecord now_GR, String fileName, String contentType, String content_base64Encoded)

https://www.servicenow.com/docs/bundle/xanadu-api-reference/page/app-store/dev_portal/API_reference/...

var attachment = new GlideSysAttachment();

var rec = new GlideRecord('incident');
var incidentSysID = 'ab1b30031b04ec101363ff37dc4bcbfc';
rec.get(incidentSysID);
var fileName = 'example.txt';
var contentType = 'text/csv';
var base64Encodedcontent = 'SSBhbSB0ZXh0Lg==';

var agr = attachment.writeBase64(rec, fileName, contentType, base64Encodedcontent);

gs.info('The attachment sys_id is: ' + agr);