Hi I have problem with unmarshalling nested JSON arrays. What struct should I create?
I want to avoid using interface{} as much as possible, but I really don't know if it is possible in this case.
Json I want to unmarshall:
"[[[{\"aaa\": \"aaa\"}]]]"
and struct I want to use to unmarshall this:
type SomeStructNestedNested struct {
Aaa string `json:"aaa"`
}
type SomeStructNested struct {
SomeStructNestedNested []SomeStructNestedNested
}
type SomeStruct struct {
SomeStructNested []SomeStructNested
}
Link to example:
https://play.golang.org/p/owuMptNrix
Yes the answer is just an slice of slices:
type AutoGenerated [][][]struct {
Aaa string `json:"aaa"`
}
Well thanks to your question I've discovered a bug in this tool I always use it for Json manipulation with Go, it can save you a lot of boring time, also it's better to use ticks `` to represent json strings like here
The problem here is that you're attempting to use structs to represent the nesting when they're actually arrays. I find the form of the json itself to be quite poor but if you're stuck with it then you have to have a 3d array for the unmarshal, using just that 'nested nested' struct type. Below is link to your play example with some crude modifications to demonstrate the point.
type SomeStructNestedNested struct {
Aaa string `json:"aaa"`
}
jsonString := "[[[{\"aaa\": \"aaa\"}]]]"
d := [][][]SomeStructNestedNested{}
json.Unmarshal([]byte(jsonString), &d)
fmt.Printf("%v", d)
https://play.golang.org/p/88M0_UR_3_
