Managing MY FB Pages from my website,(POC)

Hey guys, I need to create a small POC not full product , consider the steps:- 1. I logged in to my website (not needed) 2. There is button "Connect FB Pages" , when i click on this button , FB Popup opens and asks relevant permission , after allowing all permission , in backend it saves ALL FB Pages wherever the user is ADMIN (needed). 3. I should be able to see listing of my all FB Pages (needed). 4. Now I have another button "POST CONTENT" , on click of it - a) it will asks to select image and textbox to enter message. b) then it will show listing of all fb pages as checkboxes , i can select any no. of pages by checking it. c) when clicked on POST button , it will post that image and text to all selected fb pages. As per my research all these apis are provided by FB as Graph APIs , you just need to call APIs, And platforms prefered for coding is NodeJS , if not then PHP. Only bid if you have experience in handling graph apis and complete it asap. thanks,