ioutil.ReadAll and unmarshal on nested curl response returns error due to problem in key of array struct

huangapple
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英文:

ioutil.ReadAll and unmarshal on nested curl response returns error due to problem in key of array struct

问题

给你提供一些上下文，我正在使用curl命令访问一个第三方的端点，响应的格式类似于以下内容：

  1. {
  2.     "code": 200,
  3.     "message": "Success",
  4.     "data": {
  5.         "list": [
  6.             {
  7.                 "user": "user A",
  8.                 "status": "normal"
  9.             },
  10.             {
  11.                 "user": "user B",
  12.                 "status": "normal"
  13.             }
  14.         ],
  15.         "page": 1,
  16.         "total_pages": 5000
  17.     }
  18. }

你的结构体定义如下：

  1. type User struct {
  2.     Code    int    `json:"code"`
  3.     Message string `json:"message"`
  4.     Data    struct {
  5.         List       []struct {
  6.             User   string `json:"user"`
  7.             Status string `json:"status"`
  8.         } `json:"list"`
  9.         Page       int `json:"page"`
  10.         TotalPages int `json:"total_pages"`
  11.     } `json:"data"`
  12. }

你的代码如下：

  1. defer response.Body.Close()
  2. io_response, err := ioutil.ReadAll(response.Body)
  4. returnData := User{}
  5. err = jsoniter.Unmarshal([]byte(io_response), &returnData)
  6. if err != nil {
  7.     log.Println(err)
  8. }

以上代码返回了一个错误：

  1. decode slice: expect [ or n, but found {, error found in #10 byte of ...|:{"list":{"1"

当你使用fmt.Println(string(io_response))打印响应内容时，结果如下：

  1. {
  2.     "code": 200,
  3.     "message": "Success",
  4.     "data": {
  5.         "list": {
  6.             "1": {
  7.                 "user": "user A",
  8.                 "status": "normal"
  9.             },
  10.             "2": {
  11.                 "user": "user A",
  12.                 "status": "normal"
  13.             }
  14.         },
  15.         "page": 1,
  16.         "total_pages": 2000
  17.     }
  18. }

请问你能教我如何正确读取响应或者如何解析这个响应吗？谢谢！

英文:

To give you context, I am curling to a third party endpoint, the response is similar to this one

  1. {
  2.     "code": 200,
  3.     "message": "Success",
  4.     "data": {
  5.         "list": [
  6.             {
  7.                "user": "user A",
  8.                "status" : "normal"
  9.             },
  10.             {
  11.                 "user": "user B",
  12.                "status" : "normal"
  13.             }
  14.         ],
  15.         "page": 1,
  16.         "total_pages": 5000
  17.     }
  18. }

My struct is similar to

  1. type User struct {
  2. 	Code    int    `json:"code"`
  3. 	Message string `json:"message"`
  4. 	Data    struct {
  5. 		List []struct {
  6. 			User   string `json:"user"`
  7. 			Status string `json:"status"`
  8. 		} `json:"list"`
  9. 		Page       int `json:"page"`
  10. 		TotalPages int `json:"total_pages"`
  11. 	} `json:"data"`
  12. }

Please check my codes

  1. defer response.Body.Close()
  2. io_response, err := ioutil.ReadAll(response.Body)
  4. returnData := User{}
  5. err = jsoniter.Unmarshal([]byte(io_response), &returnData)
  6. if err != nil {
  7.    log.Println(err)
  8. }

The code above returns an error

  1. decode slice: expect [ or n, but found {, error found in #10 byte of ...|:{"list":{"1"

When I do fmt.Println(string(io_response)), it was returned like this:

> { "code": 200, "message": "Success", "data": {
> "list": {
> "1": {
> "user": "user A",
> "status": "normal"
> },
> "2": {
> "user": "user A",
> "status": "normal"
> }
> },
> "page": 1,
> "total_pages": 2000 } }

Can you please teach me how to read the response properly or how to unmarshal this?
Thank you

答案1

得分: 1

你可以像这样定义你的结构体：

  1. type User struct {
  2.     Code    int    `json:"code"`
  3.     Message string `json:"message"`
  4.     Data    struct {
  5.         List       map[string]struct {
  6.             User   string `json:"user"`
  7.             Status string `json:"status"`
  8.         } `json:"list"`
  9.         Page       int `json:"page"`
  10.         TotalPages int `json:"total_pages"`
  11.     } `json:"data"`
  12. }

这段代码定义了一个名为User的结构体，它包含了Code、Message和Data三个字段。其中，Data字段又包含了List、Page和TotalPages三个字段。List字段是一个映射类型，键为字符串，值为一个包含User和Status两个字段的结构体。这些字段都使用了json标签来指定在JSON序列化和反序列化时的名称。

英文:

you can define your struct like this:

  1. type User struct {
  2.     Code    int    `json:"code"`
  3.     Message string `json:"message"`
  4.     Data    struct {
  5.         List map[string]struct {
  6.             User   string `json:"user"`
  7.             Status string `json:"status"`
  8.         } `json:"list"`
  9.         Page       int `json:"page"`
  10.         TotalPages int `json:"total_pages"`
  11.     } `json:"data"`
  12. }

huangapple
  • 本文由 发表于 2022年9月29日 21:17:19
  • 转载请务必保留本文链接：https://go.coder-hub.com/73896231.html
  • curl
  • go
  • ioutils
  • unmarshalling
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