public async Task <Result <IList <DialogPreview> > > GetDialogs(string sessionId) { this.logger.LogDebug("GetDialogs"); try { var res = await client.GetDialogs(sessionId); var isAuthorized = CheckAuthorization(res); if (!isAuthorized) { return(Result <IList <DialogPreview> > .Failure(new UnauthorizedAccessException())); } return(Result <IList <DialogPreview> > .Success(converter.ParseDialogs(res))); } catch (Exception e) { this.logger.LogError(e, "GetDialogs"); return(Result <IList <DialogPreview> > .Failure(e)); } }