Using REST API from ServiceNow Scripting | Product Discussions

Mosh · 2020-08-15T13:19:50Z

I would like to use the REST API from ServiceNow but I'm not able to generate the HMAC using the ServiceNow Glide System native class GlideCertificateEncryption(), the resulting values don't match with what I would expect from Python or PowerShell. Are there any ServiceNow developers out there who have managed to call the LogicMonitor REST API from a ServiceNow script? If you have, could anyone share an example script please. var JavaString = Packages.java.lang.String; var key = new JavaString("key"); var message = new JavaString("message"); var keyUTF8 = new JavaString(key.getBytes("UTF8")); var messageUTF8 = new JavaString(message.getBytes("UTF8")); var util = new GlideStringUtil(); var encryption = new GlideCertificateEncryption(); //var mac = encryption.generateMac(util.base64Encode(keyUTF8), "HMACSHA256", messageUTF8); var mac = encryption.generateMac(HexUtil.convertToBase64(keyUTF8 + ""), "HMACSHA256", messageUTF8 + ""); gs.log(mac); gs.log(HexUtil.convertToBase64(mac)); var decoded = util.base64Decode(mac); var utf8Bytes = decoded.getBytes("UTF8"); gs.log(utf8Bytes.length); gs.log(JSON.stringify(utf8Bytes));

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