Run this code on playground: https://play.golang.org/p/w_SoK-WMgVJ

traversingMappedJson.go

package main

import (
	"fmt"
	"encoding/json"
)

var b = []byte(`{
  "Module": [
    {
      "Containers": "HomeMainFeature2",
      "Components" : "MainFeature2",
      "Molecules": [
        "Gojek_service"
      ]
    }
  ]
}`)

func main() {
	var mappedJson map[string]interface{}
	
	json.Unmarshal([]byte(b), &mappedJson)
	
	module := mappedJson["Module"].([]interface{})
	for i := range module {
		container := module[i].(map[string]interface{})["Containers"].(string)
		fmt.Println(container)
	}
}

https://umarudy.medium.com/go-traversing-mapped-json-interface-dc361b906725