How can I use Go structs to handle JSON data effectively?

How can I use Go structs to handle JSON data effectively?

You can define Go structs that match the JSON structure, then use the encoding/json package to marshal and unmarshal data.

Can you show me an example of a struct for a JSON object?

Sure! For a JSON object like { "name": "John", "age": 30 }, you can define a struct like this:

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

How do I unmarshal JSON data into this struct?

You can use the json.Unmarshal function. Here's an example:

var p Person
data := []byte(`{"name":"John", "age":30}`)
err := json.Unmarshal(data, &p)
if err != nil {
    log.Fatal(err)
}

What if the JSON has nested objects?

You can define nested structs. For example, if your JSON has an address field, you can create another struct for it.