iam working for a connector where we need to crawl data from aem. this entire process needs to be done without user interface 

Hi MayurThanks for the immediate response,I have gone through the above link where the user needs to manually authorize(shared in below pic(this step i need to avoid)).we need to have server to server authentication where user interface is not needed Thank you   

i have a situation where i need to authenticate to AEM using oauth 2.0 without user interface