Generate Page / User access token for Facebook API without redirecting

Question

I am trying to use Facebook Rest API in my application . I wanted to generate authentication token and using that generate page access token which can be used to post on page. When I was going through the authentication process I found that all authentication flow uses redirection to main Facebook application. I want to have an authentication flow in which I don’t have to redirect to generate authentication toke and page token. Is there any way to do this.