Azure AD Access Token using ADAL

    

1. Below is app settings to use the  

 <add key="ida:AADInstance" value="https://login.microsoftonline.com/{0}" />

    <add key="ida:Tenant" value="f61023-bd24-4569-812b-56c280afb521" />

    <add key="ida:ClientId" value="620f4139-42b5-4132-1234-785f091dss3" />

    <add key="ida:ClientSecureKey" value="fsdfv3m23bNNBbfjfbbdddsennmh" />

    <add key="ida:RedirectUri" value="620f4139-42b5-4132-1234-785f091dss3" />

2. Below method used to get the access token on behalf  of registered Application clietnId and securekey

 public async Task<string> Authentication()

        {

            string accessToken = string.Empty;

            try

            {

                string authorityy = string.Format(CultureInfo.InvariantCulture, CommonService.AADInstance, CommonService.tenantId);

           

                AuthenticationContext authContext = new AuthenticationContext(authorityy);

                // //Pass the credential

                var clientCredential = new ClientCredential(CommonService.clientId, CommonService.ClientSecureKey);

                var result = authContext.AcquireTokenAsync(CommonService.RedirectUri, clientCredential).Result;

                //Acquire the token

                accessToken = result.AccessToken;

            }

            catch (Exception ex)

            {

                string errorString = "Error in UserAuthontication :" + ex.Message.ToString() + "\n" + ex.StackTrace;

                Console.WriteLine(errorString);

                CommonService.WriteLogg(errorString);

            }

            return accessToken;

        }