public static async Task <string> GetJson(string url) { try { mClient.DefaultRequestHeaders.Remove("X-App-Token"); mClient.DefaultRequestHeaders.Add("X-App-Token", GetCoolapkAppToken()); return(await mClient.GetStringAsync(new Uri("https://api.coolapk.com/v6" + url))); } catch (HttpRequestException e) { rootPage.ShowHttpExceptionMessage(e); return(string.Empty); } catch { throw; } }