Hello everybody,
I am going to call CRM(online) Web API from my public web site written in ASP .Net MVC. Site visitor can not enter Azure AD credentials and I can not use Microsoft.IdentityModel.Clients.ActiveDirectory library.
So, I started following steps described in this post: http://jopx.blogspot.cz/2017/06/using-postman-and-dynamics-365-web-api.html.
I receive token from Azure AD on Postman tool and I can request CRM Web API using this access_token.
But I can't receive a token from Azure AD in web site code. I receive error: (401) Unauthorized.
var tokenRequestUrl = string.Format(@"login.microsoftonline.com{0}/oauth2/token",
azureTenantGuid);
// Connect to the authentication server
var request = (HttpWebRequest)WebRequest.Create(tokenRequestUrl);
request.Method = "POST";
// Write our request to the request body
using (var reqStream = await request.GetRequestStreamAsync())
{
var postData = string.Format(@"client_id={0}&resource={1}&username={2}&password={3}&grant_type=password&client_secret={4}",
clientId, crmUrl, userName, password, clientSecret);
var postBytes = new ASCIIEncoding().GetBytes(postData);
reqStream.Write(postBytes, 0, postBytes.Length);
reqStream.Close();
}
// Call the authentication server and parse out the response
using (var response = (HttpWebResponse)request.GetResponse())
{
var dataStream = response.GetResponseStream();
if (dataStream != null)
{
var reader = new StreamReader(dataStream);
var json = reader.ReadToEnd();
...
}
}
Is it possible to call from Web site? What is wrong in this code? Or do I need to make some settings on my local dev environment?
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