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Refit allows such configuration out of the box bt using `AddRefitClient` (which resembles the well-known AddHttpClient). This indeed requires explicit configuration for the HttpClient, but the configuration and usage will be simpler:

### Refit and resilience configuration

```c#
private static IServiceCollection ConfigureResilience(this IServiceCollection services)
{
    services
        .AddRefitClient(typeof(IBarIntegration), (sp) =>
        {
            var accessTokenHelperService = sp.GetRequiredService<IAccessTokenHelperService>();
            return new RefitSettings
            {
                AuthorizationHeaderValueGetter = () => accessTokenHelperService.GetAccessToken(default)
            };
        })
        .ConfigureHttpClient((sp, client) =>
        {
            var BarSettings = sp.GetRequiredService<IOptions<BarApiSettings>>();
            string baseUrl = BarSettings.Value.BaseUrl;
            client.BaseAddress = new Uri(baseUrl);
        })
        .AddTransientHttpErrorPolicy(policyBuilder => policyBuilder.WaitAndRetryAsync(   Backoff.DecorrelatedJitterBackoffV2(TimeSpan.FromSeconds(1), RetryPolicyMaxCount)
            )
        );
        .WaitAndRetryAsync(Backoff.DecorrelatedJitterBackoffV2(TimeSpan.FromSeconds(1), RetryPolicyMaxCount)));

    return services;
}
```

### Refit interface

```c#
[Headers("Authorization: Bearer")]
public interface IBarIntegration
{
    [Get("/api/ext/Foo/GetFooBriefInfo")]
    Task<GetFooBriefInfoForFooDto> GetFooBriefInfo(GetFooBriefInfoForFooInputDto inputData);
}
```