public async Task<ActionResult> AddUserToRole(string mailId, string role) { ApplicationUser user = await _userManager.FindByEmailAsync(mailId); if (user == null) { user = await _userutils.CreateNonExistentUser(mailId); } if (await _roleManager.RoleExistsAsync(role) && !(await _userManager.IsInRoleAsync(user, role))) { await _userManager.AddToRoleAsync(user, role); } return Ok(); }