Advanced Techniques in Go Programming/

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Learning the Internal Structure of a Go Structure

Learning the Internal Structure of a Go Structure

Learn learn how to use reflection in Go.

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Coding example

The next utility, reflection.go, shows us how to use reflection to discover the internal structure and fields of a Go structure variable.

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package main
import (
	"fmt"
	"reflect"
)
type Secret struct {
	Username string
	Password string
}
type Record struct {
	Field1 string
	Field2 float64
	Field3 Secret
}

In the code above, we define two struct types: Secret and Record. The Secret struct has two fields: Username and Password, both of which are of type string. This struct can be used to store sensitive information such as user credentials.

The Record struct has three fields: Field1, Field2, and Field3. Field1 is of type string, Field2 ...