Help revising a Facebook App to extract weekly data

Hello: I am the owner of a Facebook app the extracts insights data from the public Facebook pages of non-profit organizations. The app currently only extracts this data at the first time the user installs the app, but I am hoping to hire someone to help me revise the app so that it sends me data from the pages on a weekly basis. I imagine this will not be a very big project, because the Python script was fairly well written by the previous programmer I hired- from what I can tell. I suspect it may be as easy as only changing one or two lines of code or adding some type of "while" loop (unless there is a more complicated authentication issue. Please feel free to email me with questions. Best, Chris