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Alex Rivera
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I have a bunch of nested JSON objects with arbitrary keys. { "A": { "B": { "C": "hello" } } } Where A , B , C are unknown ahead of time. Each of those three could also have siblings. I'm wondering if there is a way to parse this into a custom type with Aeson in some elegant way. What I have been doing is loading it into an Aeson Object . How would you go about implementing the FromJSON for this kind of JSON object? Thanks! Edit : { "USA": { "California": { "San Francisco": "Some text" } }, "Canada": { ... } } This should compile to CountryDatabase where... type City = Map String String type Country = Map String City type CountryDatabase = Map String Country
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