# `Formata.Codec.JSON`
[🔗](https://github.com/gsmlg-dev/formata/blob/v0.1.0/lib/formata/codec/json.ex#L1)

JSON codec backed by `Formata.Jason`.

## Decoding

  * Any JSON value may be the root (objects, arrays, and scalars).
  * Object keys stay strings.
  * Duplicate object keys are rejected with a `:parse` / `:duplicate_key`
    error (RFC 8259 leaves their meaning undefined; Formata does not pick one).
  * Numbers become integers or floats; numbers outside the float range are a
    syntax error reported by Formata.Jason.
  * Syntax errors carry the byte offset reported by Formata.Jason and the line/column
    derived from it.

Options: none.

## Encoding

The JSON domain is `nil`, booleans, integers, finite floats, UTF-8 strings,
lists, and maps with string keys. Atom keys, `Date`/`DateTime` values,
`:infinity`/`:nan`, tuples, and other terms are rejected; convert them
explicitly with `Formata.Transform`.

Options:

  * `:pretty` - pretty-print the output (default `false`).

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*Consult [api-reference.md](api-reference.md) for complete listing*