CODEWITHSUNDEEP
c#.net-core
Ali Mardini
Ali Mardini

Reputation: 350

How to Add server certificate custom validation

I have to issue when I am calling external service I have the following error The SSL connection could not be established, see inner exception. after long search I find that I have to add servercertificatecustomvalidationcallback to my HttpClient My code is like this

 public class ApiClient
    {
        private readonly HttpClient _apiClient;

        public ApiClient(HttpClient apiClient)
        {
            _apiClient = apiClient;
        }


        /// <summary>
        /// Method to get summary data
        /// </summary>
        /// <returns>summary Dto</returns>
        public async Task<SummaryDto> GetSummary()
        {
            var response = await _apiClient.GetAsync("summary");
            var result = await response.Content.ReadAsStringAsync();

            if (response.IsSuccessStatusCode)
                return JsonConvert.DeserializeObject<SummaryDto>(result);

            return null;
        }
}

and inside startup file:

services.AddHttpClient<ApiClient>((sp, config) =>
            {
                config.BaseAddress = new Uri(Configuration["ServiceBaseUrl"]);
                config.DefaultRequestHeaders.Accept.Clear();
                config.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
            });

My question is how to add servercertificatecustomvalidationcallback

Upvotes: 0

Views: 850

Answers (1)

Keyur Ramoliya
Keyur Ramoliya

Reputation: 1924

You can achieve it like this in .NET Core.

In Startup.cs

services.AddHttpClient<ApiClient>((sp, config) =>
        {
            config.BaseAddress = new Uri(Configuration["ServiceBaseUrl"]);
            config.DefaultRequestHeaders.Accept.Clear();
            config.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
        }).ConfigurePrimaryHttpMessageHandler(() => new HttpClientHandler
        {
            ServerCertificateCustomValidationCallback = (httpRequestMessage, cert, cetChain, policyErrors) =>
            {
                //Your Validation Logic Here
                return true; //OR false;
            }
        });

Upvotes: 1

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