Create a REST API on client site to access IDEXX laboritory (VetLabStation)

Our veterinary software is web-based and the in house laboratory of the veterinarians is located internally in the practice and can only be accessed via the internal network. We want to build a client that communicates securely via a token to our web software.... You make the client in Java Spring Boot, as soon as it gets a request with the data, it forwards the request to the In House Lab of IDEXX, as soon as the result is there it sends the result back to the vets practice software.