ios - Get only updated data from API -

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i'm beginner in swift , i'm building first app fetches data server. working well, i'm thinking how make app updated data. there tutorials, examples, or ideas me understand mechanism , right method achieve goal? in advance!

yes, there way that, need add code server. recommend checking old data set against new 1 , sending ones weren't in first data set. recommend researching storing data in whichever language you're server code in.


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