Using Processors to download files

Author

Jace Benson
July 12, 2019

I was talking to Nthumma about a problem. It was the need for a custom XML file for each incident. I knew of a way to do this, but it's old. Enter Processors.

If you ever have a need to make something auto-download, that would seem pretty difficult as you need to set headers as mentioned here on StackOverlow.

With processors this is a non-issue. Here's how to do it.

// Processor code(function process(g_request, g_response, g_processor) { try{ var filter = g_request.getParameter("filterQuery"); var fileName = filter + '.xml'; var contentType = 'xml/plain'; var fileContent = ''; var incident = new GlideRecord('incident'); incident.addEncodedQuery(filter); incident.query(); fileContent+='<root>'; while(incident.next()) { //generate XML format fileContent+='<record>'; fileContent+='<message-type>'+ incident.getValue('short_description')+'</message-type>'; fileContent+='</record>'; } fileContent+='</root>'; if(contentType == 'xml/plain'){ fileContent = new XMLDocument(fileContent); } g_response.addHeader('Content-Disposition', 'attachment;filename=' + fileName); g_processor.writeOutput(contentType,fileContent); } catch(error){ g_processor.writeOutput('text/html',error); }})(g_request, g_response, g_processor);

UI Action

// Client side ui actiondownloadXML();function downloadXML() { var sysparm_query = g_list.getQuery({orderby: true, fixed: true}); var url = '/customprocessor.do?filterQuery='+sysparm_query; window.open(url, "_blank");}

Thanks Nthumma for the idea to make this post and the code above.

Further Reading;

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