public Task <VcsRoot> Execute(string vcsRootId, string buildId) { var model = _teamCityVcsEntryFactory.Create(vcsRootId); var serializerSettings = new JsonSerializerSettings { ContractResolver = new CamelCasePropertyNamesContractResolver(), NullValueHandling = NullValueHandling.Ignore }; var json = JsonConvert.SerializeObject(model, serializerSettings); return(_teamcityService.AttachVcsRoot(json, buildId)); }