How do I use nested JSON with Go structs?

How do I use nested JSON with Go structs?

You can define nested structs in Go to match the structure of your JSON. For example, if your JSON has an object within an object, create a struct for each level.

Can you show me an example of that?

Sure! If you have JSON like { "user": { "name": "John", "age": 30 } }, you can define structs like this:

type User struct {
    Name string `json:"name"`
    Age  int    `json:"age"`
}

type Response struct {
    User User `json:"user"`
}

Then you can unmarshal the JSON into the Response struct.

What if the JSON has an array of objects?

In that case, you can use a slice in your struct. For example, if your JSON is { "users": [{ "name": "John" }, { "name": "Jane" }] }, you would define it like this:

type User struct {
    Name string `json:"name"`
}

type Response struct {
    Users []User `json:"users"`
}