add valueWith, generalization of value allowing an explicit Aeson parser

ondrap / json-stream

Incremental applicative JSON Haskell parser

BSD 3-Clause "New" or "Revised" License

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add valueWith, generalization of value allowing an explicit Aeson parser #33

Closed dylex closed 2 years ago

dylex commented 2 years ago

Since FromJSON instances can be somewhat cumbersome, I often have custom parsing functions for certain types. valueWith is just value but allows specifying your own Aeson parsing function.