I do not see the point in using the plain JAX-RS api to solve this issue. With such a solution you will loose all ivy features around REST api usage. Such as enhanced logging, monitoring and environment based configurations....
With `Ivy.rest().client(myClientNameFromRestClientConfigurations)` you should be fine.
![alt text][1]
Further samples on this approach can be found in the `ConnectivityDemos`. E.g. in `com.axonivy.connectivity.rest.client.PersonClient`
[1]: https://answers.axonivy.com/upfiles/ivyRestApi_getClientByName.png