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I was performing a JSON file encoding in my project and noticed that the method for encoding is synchronous. While discussing this with a friend, he questioned whether a very large JSON file could cause some lag/delay due to this synchronous method. Is there any type of JSON encoding that is not synchronous for such cases?

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    Are you asking if there already exists a pre-made solution for async json, or are you asking if you can program your own solution?
    – John Gordon
    Commented Jul 9 at 13:51
  • @JohnGordon Hello, I'm asking if there is already a way to solve this
    – WilliamKose
    Commented Jul 9 at 13:55

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I think you should use Isolate for large Json encode/decode. example https://docs.flutter.dev/cookbook/networking/background-parsing

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