Scripted REST API example - streaming file attachments

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This example demonstrates how to send an image attachment to a requesting user as a binary stream.

/** * Sample Scripted REST Resource that returns a stream of binary representing an attachment * This sample uses ServiceNow JavaScript API GlideSysAttachmentInputStream to get an attachment as a stream then * users WriteStream to stream the response. */ (function process(/*RESTAPIRequest*/ request, /*RESTAPIResponse*/ response) { var hdrs = {}, attachment_sys_id = '1852fd52471321009db4b5b08b9a71a9';

hdrs['Content-Type'] = 'image/jpeg'; response.setStatus(200); response.setHeaders(hdrs);

var writer = response.getStreamWriter(); var attachmentStream = new GlideSysAttachmentInputStream(attachment_sys_id); writer.writeStream(attachmentStream); })(request, response); A request to this resource returns the following response.

// sample response /* HTTP/1.1 200 OK Set-Cookie: glide_session_store=SYSTEM; Expires=Fri, 30-Oct-2015 21:57:00 GMT; Path=/; HttpOnly Content-Type: image/jpeg Transfer-Encoding: chunked Date: Fri, 30 Oct 2015 21:26:59 GMT Connection: close Server: ServiceNow

*/

Parent Topic: Scripted REST API examples