I m new to Ocelot, so i tried to replicate the same code as you did. I added configuration.json file along with changes to be done at startup and program.cs end.
when i try to run the server, it throws the following error -
Unhandled Exception: System.Exception: Unable to start Ocelot, errors are: When not using service discovery DownstreamHostAndPorts must be set and not empty or Ocelot cannot find your service!,When not using service discovery DownstreamHostAndPorts must be set and not empty or Ocelot cannot find your service! at Ocelot.Middleware.OcelotMiddlewareExtensions.ThrowToStopOcelotStarting(Response config) at Ocelot.Middleware.OcelotMiddlewareExtensions.CreateConfiguration(IApplicationBuilder builder) at Ocelot.Middleware.OcelotMiddlewareExtensions.UseOcelot(IApplicationBuilder builder, OcelotPipelineConfiguration pipelineConfiguration) at Ocelot.Middleware.OcelotMiddlewareExtensions.UseOcelot(IApplicationBuilder builder) at OcelotIntegration.Startup.Configure(IApplicationBuilder app, IHostingEnvironment env) in D:\OcelotIntegrator\OcelotIntegration\Startup.cs:line 51 at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state) --- End of stack trace from previous location where exception was thrown --- at System.Threading.ThreadPoolWorkQueue.Dispatch() Hosting environment: Development Content root path: D:\OcelotIntegrator\OcelotIntegration Now listening on: http://localhost:9000 Application started. Press Ctrl+C to shut down.

After this log, server automatically shuts down.
Any Help on above would be highly appreciated, Thanks