使用哈希结构访问嵌套的JSON文件

Question

I have JSON file that looks like this:

{
  "env": {
      "production": {
         "test": {
             "text": "hello"
          },
          "url": {
             "str": "url1"
          }
      },
      "staging": {
         "test": {
             "text": "hel1lo"
          },
          "url": {
             "str": "url31"
          }
      }
   }
}

Is there a way to import this file and get into nested struct format just for staging and its inner fields in correct order?

Answer 1

Use this code to parse the staging data to a Go value:

type env struct {
  Test struct {
    Text string
  }
  URL struct {
    Str string
  }
}

var v struct {
  Env struct {
    Staging env
  }
}

err := json.Unmarshal(data, &v)
if err != nil {
   // handle error
}

staging :=  v.Env.Staging

<kbd>playground</kbd>

JSON object fields are unordered. The Go standard library does not provide a way to get object fields in source order.