How would you decode a JSON data into a Go struct?

  • Using the json.Marshal function.
  • Using the json.NewEncoder function.
  • Using the json.Unmarshal function.
  • Using the json.Encode function.
To decode JSON data into a Go struct, you would use the json.Unmarshal function from the standard Go library. This function takes a JSON byte slice and a pointer to a Go struct as input, and it populates the struct fields with data from the JSON. It's essential to use this function to unmarshal JSON data correctly into Go types, ensuring the data types match between the JSON and the Go struct fields. The json.Marshal function is used for encoding, not decoding, and the json.NewEncoder and json.Encode functions are not standard Go JSON decoding methods.
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