Usage for structs that has interfaces as fields (`interface{}`)

[afiune]

There are some cases where the JSON data could have different shapes, in those cases we would use an interface{} to define a field within a struct.

Is it possible for gojay to Decode fields of a struct that are interfaces{}?

As for instance, this example of an error that has a description with a number of sections that could have different shapes:

type Error struct {
    Class       string               `json:"class"`
    Message     string               `json:"message"`
    Backtrace   []string             `json:"backtrace"`
    Description Description          `json:"description"`
}
type Description struct {
    Title    string                   `json:"title"`
    Sections []map[string]interface{} `json:"sections"`
}

How would you implement the UnmarshalJSONObject() function?

[afiune]

Uhhhm I think this answers my question: https://github.com/francoispqt/gojay/blob/master/decode.go#L68

😭

[francoispqt]

So, yes there is no such way at the moment but we could add something that would use standard encoding/json to decode interface values.

We could also write our own implementation to unmarshal interfaces, performance would be much better but it would take longer.

[afiune]

I thought about both alternatives, let me try to work on the first one since the second one, as you said, will require more time for its implementation.

Is this something you are accepting pull requests?

[francoispqt]

Yes of course, I'm happy to have contributions :)

[afiune]

Oh cool, I'll work on it.