php - How to only save new tweets/instagram photos to database? -


i'm building 2 cron-jobs regularly searches new tweets , instagram photos(and potentially more services) based on tag.

the content saved database , later outputted webpage. allows faster loading , more importantly ability remove tweets not displayed.

i want make sure no posts saved twice in database , not sure approach best. here options consider:

  • i use laravel , has ability demand postid unique, make database refuse when try save existing posts. might render unnesseary sql-queries though.
  • i check database latest saved post id , stop loop once post.
  • atleast in twitter, can pass parameter since_id, wich allows me latest posts. haven't found same parameter in instagram , wouldn't work html-scraping either.

twitter provides 'created_at' value, giving date , time tweet created.

each time cron job runs, store date , time, on next run, upload tweet if date/time prior value of 'created_at'.

i'm not familiar instagram, sorry - assume same logic apply.

["created_at":"wed aug 27 13:08:45 +0000 2008"][1]

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