/// <summary>
/// Creates an authorization url for the authcontext.
/// </summary>
/// <param name="appCredentials">InstagramCredential object</param>
/// <param name="callbackUrl">Application's callback url</param>
public static IAuthContext InitAuth(InstagramCredentials appCredentials, string callbackUrl)
{
authContext = AuthContext.AuthContextFromCredentials(appCredentials, callbackUrl);
return(authContext);
}
