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Dynamics 365 Community / Forums / Microsoft Dynamics 365 | Integration, Dataverse... / Not able to receive re...
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Not able to receive response from Dynamics API

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Posted on by Dynamics WebApi Sub... 20

I have used MSAL.Net (followed blog https://msftblog.com/using-msal-net-with-dynamics-365-webapi-in-dotnet-core/) to communicate with Dynamics CRM which is returning the access token & when I give a call to products API I see below message & cannot move ahead.

Failed to call the Web API: Forbidden

Content: {"error":{"code": "0x80072560", "message": "The user is not a member of the organization."}}

However, if I login to dynamics 365 crm & copy the URL (https://{Company}.api.crm8.dynamics.com/api/data/v9.1/products) in the browser I am able to get the response.

Just a background:

Have Azure active subscription & Dynamics 365 30 day trial.

Any help on resolving the above error much appreciated.

Thanks & Regards,

Raghavendra Habbu

  • Dynamics WebApi Subscription Profile Picture
    Dynamics WebApi Sub... 20 on at
    RE: Not able to receive response from Dynamics API

    Thank You Johao. Let me give it a try once again.

  • Suggested answer
    Johao Larios Profile Picture
    Johao Larios 1,795 on at
    RE: Not able to receive response from Dynamics API

    I have never used that to connect to d365 from .netCore.

    I use this:

     AuthenticationContext authContext = new AuthenticationContext("login.microsoftonline.com/" tenantId, false);

               ClientCredential credential = new ClientCredential(clientId, secret);

               AuthenticationResult result = await authContext.AcquireTokenAsync(serviceUrl, credential);

               if (result == null)

               {

                   throw new InvalidOperationException("Failed to obtain the JWT token");

               }

               string atoken = result.AccessToken;

               using (HttpClient client = new HttpClient())

               {

                   client.BaseAddress = new Uri(serviceUrl);

                   client.Timeout = new TimeSpan(0, 2, 0);  //2 minutes  

                   client.DefaultRequestHeaders.Add("OData-MaxVersion", "OData-MaxVersion");

                   client.DefaultRequestHeaders.Add("OData-Version", "4.0");

                   client.DefaultRequestHeaders.Accept.Add(

                       new MediaTypeWithQualityHeaderValue("application/json"));

                       HttpRequestMessage request =

                       new HttpRequestMessage(HttpMethod.Get, "/api/data/v9.0/opportunities?$select=name");

                   //Set the access token

                   request.Headers.Authorization = new AuthenticationHeaderValue("Bearer", atoken);

                   HttpResponseMessage response = client.SendAsync(request).Result;

                    if (response.IsSuccessStatusCode)

                   {

                       //Get the response content and parse it.  

                       JObject body = JObject.Parse(response.Content.ReadAsStringAsync().Result);

                       //  Guid userId = (Guid)body["UserId"];

                       //  Console.WriteLine("Your system user ID is: {0}", userId);

                       Console.WriteLine(body.ToString());

                       Console.ReadLine();

                   }

               }

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