如何在Go中对一个具有任意键的对象值的JSON进行建模？

huangapple
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英文:

How to model a Go struct after a JSON that has object values with arbitrary keys?

问题

我正在使用我的Go程序向API发出HTTP请求。请求体是一个JSON对象，如下所示：

  1. {
  2.     "data": {
  3.         "XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX": {
  4.             "status": "ok",
  5.             "message": "aaa",
  6.             "details": "bbb"
  7.         },
  8.         "ZZZZZZZZ-ZZZZ-ZZZZ-ZZZZ-ZZZZZZZZZZZZ": {
  9.             "status": "ok",
  10.             "message": "ccc",
  11.             "details": "ddd"
  12.         }
  13.     }
  14. }

其中"XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX"是一个任意的键。

如何定义一个结构体，使得该部分可以接受一个字符串值？以下是我的结构体，我知道它不能正确解码JSON：

  1. type ReceiptResult struct {
  2.     Data ReceiptIDS `json:"data"`
  3. }
  5. type ReceiptIDS struct {
  6.     ReceiptID struct {
  7.         Status  string `json:"status,omitempty"`
  8.         Message string `json:"message,omitempty"`
  9.         Details string `json:"details,omitempty"`
  10.     }
  11. }
英文:

I am making an http request to an API from my go program. The request body is a JSON object as below:

  1.  {
  2.       "data": {
  3.           "XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX": { 
  4.               "status": "ok","message":"aaa","details":"bbb"
  5.           },
  6.           "ZZZZZZZZ-ZZZZ-ZZZZ-ZZZZ-ZZZZZZZZZZZZ": { 
  7.               "status": "ok","message":"ccc","details":"ddd" 
  8.           }  
  9.      }
  10. }

Where "XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX" is an arbitrary key itself.

How to define a struct that allows that part to take a string value? Below is my struct, which I know does not allow me to properly decode the JSON:

  1. type ReceiptResult struct {
  2. 	Data   ReceiptIDS    `json:"data"`
  3. }
  5. type ReceiptIDS struct {
  6. 	ReceiptID struct {
  7. 		Status  string `json:"status,omitempty"`
  8. 		Message string `json:"message,omitempty"`
  9. 		Details string `json:"details,omitempty"`
  10. 	}
  11. }

答案1

得分: 2

我看到问题了，你的结构体的结构是不必要的。

结构体应该像这样：

  1. type ReceiptResult struct {
  2.     Data map[string]ReceiptIDS `json:"data"`
  3. }
  5. type ReceiptIDS struct {
  6.     Status  string `json:"status,omitempty"`
  7.     Message string `json:"message,omitempty"`
  8.     Details string `json:"details,omitempty"`
  9. }

Playground 上的工作示例：https://play.golang.org/p/EbJ2FhQOLz1

英文:

I see the problem here your struct's struct is unneeded.

Structs should look like this

  1. type ReceiptResult struct {
  2. 	Data map[string]ReceiptIDS `json:"data"`
  3. }
  5. type ReceiptIDS struct {
  6. 	Status  string `json:"status,omitempty"`
  7. 	Message string `json:"message,omitempty"`
  8. 	Details string `json:"details,omitempty"`
  9. }

Playground working example: https://play.golang.org/p/EbJ2FhQOLz1

huangapple
  • 本文由 发表于 2021年9月23日 23:38:07
  • 转载请务必保留本文链接：https://go.coder-hub.com/69303044.html
  • go
  • json
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