Take a Look at
https://blog.golang.org/json-and-go:
The json package uses map[string]interface{} and []interface{}values to
store arbitrary JSON objects and arrays; it will happily unmarshal any
valid JSON blob into a plain interface{} value. The default concrete Go
types are:
- bool for JSON booleans,
- float64 for JSON numbers,
- string for JSON strings, and
- nil for JSON null.
Does this help?
'Eric Johnson' via golang-nuts <golang-nuts@googlegroups.com> schrieb am
Fr. 21. Feb. 2020 um 19:00:
> If I've got a structure like this:
>
> type jsonData struct {
> FirstName string `json:"first_name"`
> LastName string `json:"last_name"`
> }
>
> I can marshal / unmarshal JSON as:
> {
> "first_name": "first",
> "last_name": "last"
> }
>
> What if my input JSON is this:
> {
> "first_name": "first",
> "last_name": "last",
> "favorite_color": "orange",
> "age": 92
> }
>
> Is there an existing library to have a structure that's something like
> this:
>
> type jsonData struct {
> FirstName string `json:"first_name"`
> LastName string `json:"last_name"`
> Extras map[string]interface{} `json:",extras"`
> }
>
> Such that a JSON unmarshal and marshal will preserve the data of the
> original JSON?
>
> I think I can probably make something work with the standard library,
> except that it will require extra marshaling / unmarshaling steps that will
> be annoying to reproduce for each structure that needs to capture extra
> data. So I'm hoping there's a better solution?
>
> Eric
>
>
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