👀 Views: 82 💬 Answers: 1 📅 Created: 2025-06-11

c# .net httpclient webapi csharp

Could someone explain After trying multiple solutions online, I still can't figure this out... I'm experiencing an intermittent `TaskCanceledException` when making HTTP requests to an external API in my .NET 6 Web API project. This scenario seems to occur under load, and I'm unsure if it's related to the timeout settings or the way I'm managing my HttpClient instances. I've configured my HttpClient like this: ```csharp private readonly HttpClient _httpClient; public MyService(HttpClient httpClient) { _httpClient = httpClient; } ``` I make requests using the following method: ```csharp public async Task<string> GetDataAsync(string url) { var response = await _httpClient.GetAsync(url); response.EnsureSuccessStatusCode(); return await response.Content.ReadAsStringAsync(); } ``` In my `Startup.cs`, I registered HttpClient like this: ```csharp services.AddHttpClient<MyService>(client => { client.Timeout = TimeSpan.FromSeconds(30); }); ``` I monitor the API requests using Application Insights and found that the exception occurs approximately 10% of the time, typically during peak traffic hours. Occasionally, I'm seeing the following behavior in the logs: ``` System.Threading.Tasks.TaskCanceledException: The operation was canceled. ``` I've tried increasing the timeout to 60 seconds, but it hasn't resolved the scenario. I've also ensured that I'm not accidentally creating multiple instances of HttpClient. Is there a recommended approach to handle external service calls more reliably in .NET 6, especially under load? Any insights or best practices would be greatly appreciated! This is part of a larger web app I'm building. I'm open to any suggestions.