My question is to create user_access_token without using facebook login screen or using manual login with code at once.and whats the difference between facebook sdk 4 and facebook graph 5 for creating user_access_token.Please help me its urgent for me....I tried all technique but every technique shows needs to logged in to facebook then get it user_access_token...So How many ways we can create it user_access_token.if yes then guide me with all steps.