https://medium.com/hypertrends/microservices-api-gateways-ocelot-for-net-core-video-8bbd4ed3be8f
https://medium.com/@thiagoloureiro/api-gateway-with-ocelot-cadc3c7b60b6
https://docs.microsoft.com/en-us/dotnet/standard/microservices-architecture/multi-container-microservice-net-applications/implement-api-gateways-with-ocelot