How to handle values containing escaped JSON

[Malte]

Hi, i'm trying to parse JSON with the following structure:

{
  "key" :  val,
  "list": [
              {"key1": {\"key2\":val1}}
              ...
          ]
}

I can't seem to find out how to get val1.

[Klaus Post]

Your JSON doesn't validate.

Do you mean

{
	"key": "val",
	"list": [{
		"key1": {
			"\"key2\"": "val1"
		}
	}]
}

[Malte]

Hm sry, i actually mean:

{
	"key": "val",
	"list": [{
		"key1": "{\"key2\": \"val1\"}"
	}]
}

[Klaus Post]

func main() {
	// Parse JSON:
	pj, err := simdjson.Parse([]byte(`{
	"key": "val",
	"list": [{
		"key1": "{\"key2\": \"val1\"}"
	}]
}`), nil)
	if err != nil {
		log.Fatal(err)
	}

	iter := pj.Iter()
	list, err := iter.FindElement(nil, "list")
	if err != nil {
		log.Fatal(err)
	}
	arr, err := list.Iter.Array(nil)
	if err != nil {
		log.Fatal(err)
	}
	arr.ForEach(func(i simdjson.Iter) {
		if i.Type() != simdjson.TypeObject {
			return
		}
		elem, err := i.FindElement(nil, `key1`)
		if err != nil {
			return
		}
		fmt.Println(elem.Iter.String())
	})
	// Output:
	// {"key2": "val1"} <nil>
}

[Klaus Post]

{"key2": "val1"} is a string, so it is returned as that. It will not be parsed. You will have to do that once you have the value.