What fields are returned by your initial search? The search NOT line will expand to a set of equalities such as 'threat_match_value = "xyz"' OR 'threat_match_value = "abc"', so unless you have a find in your initial search called threat_match_value, this line is unlikely to perform as you might be expecting ... View more

It's failing because you are using a self-signed cert on your Solarwinds server. Passing the -k flag tells curl to trust all connections, regardless of the cert. That's why the connection works using the example your provided, but not with the add-on. You can either get a cert signed by a certificate authority or configure your server to accept insecure (http) connections (not advised). ... View more