Re: [ros-users] examples of non ROS service clients?

>
> You'll find these methods do not require you to start a node before using
> them. http://www.ros.org/doc/api/roscpp/html/namespaceros_1_1service.html


This is only partially true. ros::service::call() works without creating a
NodeHandle first only because it creates one for itself to use.

Josh