33 replies

Decoding a JSON object with unknown keys using Schema

I'd like to use Schema to decode a JSON object that pretty much looks like this type:

type Rec<T> = {
    [k: string]: T | undefined
}

type Rec<T> = {
    [k: string]: T | undefined
}

Importantly, we only know that they values are strings. We don't know that any key actually exists. I tried using

Schema.Record

Schema.Record

, but that type is more like "every possible string in the universe is in this object" which isn't terribly helpful.