如何创建一个嵌套字典来发送数据？

huangapple
go评论110阅读模式
英文:

How to create a nested dictionary to post data?

问题

{
"data": {
"payload": {
"from": {
"phone_number": "+XXXXXXXXXX"
},
"to": {
"phone_number": "+XXXXXXXXXX"
}
}
}
}

我正在尝试创建一个嵌套字典作为请求体。我尝试使用struct，但结果不如预期，并且在使用map[string]interface{}{}时出现错误。

  1. 结构体 Route:
  1. type Payload struct {
  2.     From struct {
  3.         PhoneNumber string `json:"phone_number"`
  4.     }
  5.     To struct {
  6.         PhoneNumber string `json:"phone_number"`
  7.     }
  8. }
  10. type Response struct {
  11.     Data struct {
  12.         Payload Payload `json:"payload"`
  13.     }
  14. }
  16. func main() {
  17.     // 其他代码
  19.     payload := Payload{
  20.         From: struct{ PhoneNumber string }{PhoneNumber: sender},
  21.         To:   struct{ PhoneNumber string }{PhoneNumber: recipient},
  22.     }
  23.     response := Response{
  24.         Data: struct{ Payload Payload }{Payload: payload},
  25.     }
  26.     fmt.Println(response)
  27. }

上述代码的输出结果为:

  1. {{{{+XXXXXXXXXX} {+XXXXXXXXXX}}}}
  1. 创建原始字典:
  1. var payload = map[string]interface{}{
  2.     "from": map[string]string{
  3.         "phone_number": sender,
  4.     },
  5.     "to": map[string]string{
  6.         "phone_number": recipient,
  7.     },
  8. }
  9. fmt.Println(payload)
  11. var response = map[string]interface{}{
  12.     "data": map[string]interface{}{
  13.         "payload": payload,
  14.     },
  15. }

错误信息: 无法将类型为map[string]interface{}的'payload'用作类型为string的值。

如果你能指导我正确的方向，我将非常感激。

英文: 
  1. {
  2.     "data": {
  3.         "payload": {
  4.             "from": {
  5.                 "phone_number": "+XXXXXXXXXX"
  6.             },
  8.             "to": {
  9.                 "phone_number": "+XXXXXXXXXX",
  10. 			},
  11.         }
  12.     }
  13. }

I'm trying to create a nested dictionary for the post body. I've tried using struct but it didn't work as I expected and while using the map[string]interface{}{} I'm getting an error.

  1. Struct Route:
  2. type Payload struct {
  3. 	From struct {
  4. 		PhoneNumber string `json:"phone_number"`
  5. 	}
  6. 	To  struct {
  7. 		PhoneNumber string `json:"phone_number"`
  8. 	}
  9. }
  12. type Response struct {
  13. 	Data struct {
  14. 		Payload Payload `json:"payload"`
  15. 	}
  16. }
  19. func main() {
  20.   // extra code
  22.   payload := Payload{
  23. 		From: struct {PhoneNumber string `json:"phone_number"`}(struct{ PhoneNumber string }{PhoneNumber: sender}),
  24. 		To: struct {PhoneNumber string `json:"phone_number"`}(struct{ PhoneNumber string }{PhoneNumber: recipient})}
  25. 	response := Response{Data: struct {
  26. 		Payload Payload `json:"payload"`
  27. 	}(struct{ Payload Payload }{Payload: payload})}
  28.   fmt.Println(response)
  29. }

The above response is:

  1. {{{{+XXXXXXXXXX} {+XXXXXXXXXX}}}}
  1. Raw dict creation:
  1. var payload = map[string]interface{}{}
  2. payload["from"].(map[string]string)["phone_number"] = sender
  3. payload["to"].(map[string]string)["phone_number"] = recipient
  4. fmt.Println(payload)
  6. var response = map[string]interface{}{}
  7. response["data"].(map[string]string)["payload"] = payload

Error: Cannot use 'payload' (type map[string]interface{}) as the type string

I would highly appreciate it if you could guide me in the correct direction

答案1

得分: 2

最简单的方法是使用JSON转Go结构体，生成一个类似的结构体：

  1. type AutoGenerated struct {
  2. 	Data Data `json:"data"`
  3. }
  4. type From struct {
  5. 	PhoneNumber string `json:"phone_number"`
  6. }
  7. type To struct {
  8. 	PhoneNumber string `json:"phone_number"`
  9. }
  10. type Payload struct {
  11. 	From From `json:"from"`
  12. 	To   To   `json:"to"`
  13. }
  14. type Data struct {
  15. 	Payload Payload `json:"payload"`
  16. }

然后可以使用以下示例：

  1. outStruct := AutoGenerated{
  2. 	Data: Data{
  3. 		Payload: Payload{
  4. 			From: From{PhoneNumber: sender},
  5. 			To:   To{PhoneNumber: recipient},
  6. 		},
  7. 	},
  8. }
  9. out, err := json.Marshal(outStruct)
  10. fmt.Println(string(out), err)

这将输出：

  1. {"data":{"payload":{"from":{"phone_number":"234234"},"to":{"phone_number":"32434"}}}} <nil>
英文:

The simplest way is to use the Convert JSON to Go struct, that generate a struct like:

  1. type AutoGenerated struct {
  2. 	Data Data `json:&quot;data&quot;`
  3. }
  4. type From struct {
  5. 	PhoneNumber string `json:&quot;phone_number&quot;`
  6. }
  7. type To struct {
  8. 	PhoneNumber string `json:&quot;phone_number&quot;`
  9. }
  10. type Payload struct {
  11. 	From From `json:&quot;from&quot;`
  12. 	To   To   `json:&quot;to&quot;`
  13. }
  14. type Data struct {
  15. 	Payload Payload `json:&quot;payload&quot;`
  16. }

and use, as example:

  1. outStruct := AutoGenerated{
  2. 	Data: Data{
  3. 		Payload: Payload{
  4. 			From: From{PhoneNumber: sender},
  5. 			To:   To{PhoneNumber: recipient},
  6. 		},
  7. 	},
  8. }
  9. out, err := json.Marshal(outStruct)
  10. fmt.Println(string(out), err)

this will out

  1. {&quot;data&quot;:{&quot;payload&quot;:{&quot;from&quot;:{&quot;phone_number&quot;:&quot;234234&quot;},&quot;to&quot;:{&quot;phone_number&quot;:&quot;32434&quot;}}}} &lt;nil&gt;

答案2

得分: 1

这是你的代码的一个工作示例。当你尝试创建一个原始的映射时，我认为你给nil映射赋值了一个值，这就是为什么你会得到错误的原因。

  1. package main
  3. import (
  4. 	"encoding/json"
  5. 	"fmt"
  6. )
  8. type (
  9. 	Response struct {
  10. 		Data Data `json:"data"`
  11. 	}
  13. 	Data struct {
  14. 		PayLoad PayLoad `json:"payload"`
  15. 	}
  17. 	PayLoad struct {
  18. 		From Address `json:"from"`
  19. 		To   Address `json:"to"`
  20. 	}
  22. 	Address struct {
  23. 		PhoneNumber string `json:"phone_number"`
  24. 	}
  25. )
  27. func main() {
  28. 	payload := PayLoad{
  29. 		From: Address{PhoneNumber: "+1xxxxxxxxx"},
  30. 		To:   Address{PhoneNumber: "+1xxxxxxxxx"},
  31. 	}
  33. 	resp := Response{
  34. 		Data: Data{
  35. 			PayLoad: payload,
  36. 		},
  37. 	}
  39. 	j, _ := json.Marshal(resp)
  40. 	fmt.Println(string(j))
  42. 	// with map
  44. 	var payloadNew = map[string]interface{}{
  45. 		"from": map[string]interface{}{
  46. 			"phone_number": "+1xxxxxxxx",
  47. 		},
  48. 		"to": map[string]interface{}{
  49. 			"phone_number": "+1yyyyyyyy",
  50. 		},
  51. 	}
  53. 	var responseNew = map[string]interface{}{
  54. 		"data": map[string]interface{}{
  55. 			"payload": payloadNew,
  56. 		},
  57. 	}
  59. 	j, _ = json.Marshal(responseNew)
  60. 	fmt.Println(string(j))
  61. }

JSON输出为：

  1. {"data":{"payload":{"from":{"phone_number":"+1xxxxxxxxx"},"to":{"phone_number":"+1xxxxxxxxx"}}}}
  2. {"data":{"payload":{"from":{"phone_number":"+1xxxxxxxx"},"to":{"phone_number":"+1yyyyyyyy"}}}}
英文:

Here is a working example of your code. When you were trying to create a raw map I think you were assigning value to nil map that's why you were getting error.

  1. package main
  3. import (
  4. 	&quot;encoding/json&quot;
  5. 	&quot;fmt&quot;
  6. )
  8. type (
  9. 	Response struct {
  10. 		Data Data `json:&quot;data&quot;`
  11. 	}
  13. 	Data struct {
  14. 		PayLoad PayLoad `json:&quot;payload&quot;`
  15. 	}
  17. 	PayLoad struct {
  18. 		From Address `json:&quot;from&quot;`
  19. 		To   Address `json:&quot;to&quot;`
  20. 	}
  22. 	Address struct {
  23. 		PhoneNumber string `json:&quot;phone_number&quot;`
  24. 	}
  25. )
  27. func main() {
  28. 	payload := PayLoad{
  29. 		From: Address{PhoneNumber: &quot;+1xxxxxxxxx&quot;},
  30. 		To:   Address{PhoneNumber: &quot;+1xxxxxxxxx&quot;},
  31. 	}
  33. 	resp := Response{
  34. 		Data: Data{
  35. 			PayLoad: payload,
  36. 		},
  37. 	}
  39. 	j, _ := json.Marshal(resp)
  40. 	fmt.Println(string(j))
  42. 	// with map
  44. 	var payloadNew = map[string]interface{}{
  45. 		&quot;from&quot;: map[string]interface{}{
  46. 			&quot;phone_number&quot;: &quot;+1xxxxxxxx&quot;,
  47. 		},
  48. 		&quot;to&quot;: map[string]interface{}{
  49. 			&quot;phone_number&quot;: &quot;+1yyyyyyyy&quot;,
  50. 		},
  51. 	}
  53. 	var responseNew = map[string]interface{}{
  54. 		&quot;data&quot;: map[string]interface{}{
  55. 			&quot;payload&quot;: payloadNew,
  56. 		},
  57. 	}
  59. 	j, _ = json.Marshal(responseNew)
  60. 	fmt.Println(string(j))
  61. }

The json outputs are:

  1. {&quot;data&quot;:{&quot;payload&quot;:{&quot;from&quot;:{&quot;phone_number&quot;:&quot;+1xxxxxxxxx&quot;},&quot;to&quot;:{&quot;phone_number&quot;:&quot;+1xxxxxxxxx&quot;}}}}
  2. {&quot;data&quot;:{&quot;payload&quot;:{&quot;from&quot;:{&quot;phone_number&quot;:&quot;+1xxxxxxxx&quot;},&quot;to&quot;:{&quot;phone_number&quot;:&quot;+1yyyyyyyy&quot;}}}}

huangapple
  • 本文由 发表于 2021年8月30日 15:27:15
  • 转载请务必保留本文链接：https://go.coder-hub.com/68980328.html
  • go
匿名

发表评论

匿名网友

:?: :razz: :sad: :evil: :!: :smile: :oops: :grin: :eek: :shock: :???: :cool: :lol: :mad: :twisted: :roll: :wink: :idea: :arrow: :neutral: :cry: :mrgreen:

确定