I have an mobile app Android and iOS developed with a REST API working as backend. I basically need to add desktop web support for my mobile platform using the already developed REST API. The idea is to "migrate" in a way the mobile app to a desktop web, just front-end, and based in the mobile app front-end. All backend is already developed as REST API. This web should connect patients and doctors via a video call. The complex part is the videocall, and we are using opentok plugin (webRTC provider) to establish the videocall. It has 2 roles, patient role and doctor role. It is important to have experience with opentok sdk. The idea is to have a long relationship and continue developing in the future.