Play Framework, Format[A] vs OFormat[A]

Question

I can't find an explanation in the Play Framework docs. I found this question but now I can't see why will I use Format[A] at all.

`OFormat` will only read/write JSON objects, but maybe you have some types that you want to read/write as JSON string/int/Boolean.. — Gaël J, Jan 23 '22 at 17:24
imagine a `case class Wrapper(str: String)` that you want to serialize as a plain JSON string `"..."` but not as `{str: ""}` — Gaël J, Jan 27 '22 at 15:43

score 0 · Accepted Answer · answered Feb 20 '22 at 16:02

As Gaël mentioned: OFormat will only read/write JSON objects, but maybe you have some types that you want to read/write as JSON string/int/Boolean.

OFormat/OWrite returns a JsObject while Format/Write returns JsValue. You can do more with JsObject because it is a subclass of JsValue that represents a JSON object. JsValue can be a string, numeric, object or array.

Play Framework, Format[A] vs OFormat[A]

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