How to properly implement a retry policy with Polly in .NET 6 for transient faults?
I'm stuck on something that should probably be simple. I've searched everywhere and can't find a clear answer. I'm trying to implement a retry policy using the Polly library in my .NET 6 application to handle transient faults when calling an external API. However, I'm running into an scenario where the retries are happening too quickly, and I'm not seeing any exponential backoff behavior. My current implementation is as follows: ```csharp using Polly; using System; using System.Net.Http; using System.Threading.Tasks; public class ApiService { private readonly HttpClient _httpClient; private readonly IAsyncPolicy _retryPolicy; public ApiService(HttpClient httpClient) { _httpClient = httpClient; _retryPolicy = Policy .Handle<HttpRequestException>() .WaitAndRetryAsync(3, retryAttempt => TimeSpan.FromSeconds(Math.Pow(2, retryAttempt))); } public async Task<string> GetDataAsync(string url) { return await _retryPolicy.ExecuteAsync(async () => { var response = await _httpClient.GetAsync(url); response.EnsureSuccessStatusCode(); return await response.Content.ReadAsStringAsync(); }); } } ``` When I run this code, I expect the first retry to occur after 2 seconds, the second after 4 seconds, and the third after 8 seconds. Instead, the retries are happening almost immediately, and I see the behavior message: ``` System.Net.Http.HttpRequestException: Response status code does not indicate success: 500 (Internal Server behavior). ``` I’ve also checked that the `HttpClient` is properly configured and is using the default timeout settings. I've installed Polly version 7.2.2 via NuGet, and I'm using .NET 6.0. How can I ensure that the retries include a proper exponential backoff? Is there something I might be missing in my configuration or usage of Polly? I'm working on a web app that needs to handle this. Is there a better approach? This is part of a larger API I'm building. Any pointers in the right direction?