anchor.diff:  
   let swaggerSpec = Files.browse_file' <| Path.Combine("static", "api-docs.json")
   
  -let login (appService : AppService) httpContext =
  -    OK "Hello" httpContext
  +let index = OK "Hello"
  +let login (appService : AppService) = OK "Hello"
  +let logout = OK "Hello"
   
   let createUser (appService : AppService) =
       let mappingFunc (createUser:CreateUser) = 
  
positive.code:           url "/logout'" >>= logout
          ]
        PUT >>= choose 
          [ url_scan "/users/%s/password" (fun id -> setPassword appService id)
            url_scan "/users/%s/name" (fun id -> renameUser appService id)
          ]
        RequestErrors.NOT_FOUND "404 not found"
  
negative.code:         return! OK usersAsString httpContext
      }
  
  let renameUser (appService : AppService) (id:string) =    
      let mappingFunc (changeName:ChangeName) = 
          //TODO handle async response
  