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JSON Encoding and Decoding

Use encoding/json to convert Go structs to and from JSON.

  • Encoding: json.Marshal(data)
  • Decoding: json.Unmarshal(jsonData, &targetStruct)

Add struct tags like `json:"field_name"` to map JSON keys to Go fields.

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

data := Person{"Alice", 30}
jsonBytes, _ := json.Marshal(data)
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