如何从嵌套数组的 golang grpc 服务中根据条件获取数据

huangapple
go评论101阅读模式
英文:

How to get data based on condition from nested array golang grpc service

问题

我正在尝试根据下一个数组条件获取特定数据的Go代码。我想，我只需要给一个例子来说明清楚。

假设我有一个如下的数组：

detail: {
contacts: [
{
email: "testing@gmail.com",
condition: {
valid: "Yes",
verified: "No"
}
},
{
email: "testing2@gmail.com",
condition: {
valid: "Yes",
verified: "Yes"
}
}
]
}

所以，我想在调用grpc函数后，如果条件中的verified为"Yes"，则将email作为返回值。

result, err := grpcService.callingService.GetContactDetail(ctx, &contactServicePb.GetContactDetailRequest{
ContactId: "123",
})
if err != nil {
return err
}

这是我目前尝试的，我可以访问contacts列表，但我不知道如何获取属于"Yes" verified的email。

fmt.Println(result.Detail.Contacts)

输出如下所示：

{
email: "testing@gmail.com",
condition: {
valid: "Yes",
verified: "No"
}
},
{
email: "testing2@gmail.com",
condition: {
valid: "Yes",
verified: "Yes"
}
}

英文:

I'm trying to get specific data based on next array condition in Go. I think, I will just give an example to make it clear.

Let's say I have an array like this

  1. detail: {
  3.    contacts: [
  5.       {
  7.          email: "testing@gmail.com"
  9.          condition: {
  10.                
  11.               valid: "Yes",
  13.               verified: "No"
  15.          }
  17.       },
  19.       {
  21.          email: "testing2@gmail.com"
  23.          condition: {
  25.               valid: "Yes",
  27.               verified: "Yes"
  29.          }
  31.       }
  33.    ]
  35. }

So, I'm trying to get the email as a return after calling grpc function if the condition has verified "Yes" on it.

  1. result, err := grpcService.callingService.GetContactDetail(ctx, &contactServicePb.GetContactDetailRequest{
  2. 	ContactId: "123",
  3. })
  4. if err != nil {
  5. 	return err
  6. }

This is what I tried so far, I can access the contacts list but I don't know how do I take email which belong to "Yes" verified.

fmt.Println(result.Detail.Contacts)

this is how the output looks like

  1.       {
  3.          email: "testing@gmail.com"
  5.          condition: {
  7.               valid: "Yes",
  9.               verified: "No"
  11.          }
  13.       },
  15.       {
  17.          email: "testing2@gmail.com"
  19.          condition: {
  21.               valid: "Yes",
  23.               verified: "Yes"
  25.          }
  27.       }

答案1

得分: 1

你可以遍历result.Detail.Contacts数组，并在“Yes”验证条件下存储联系人的电子邮件：

  1. verifiedEmails := []string{}
  3. for _, contact := range result.Detail.Contacts {
  4.     if contact.condition.verified == "Yes" {
  5.         verifiedEmails = append(verifiedEmails, contact.email)
  6.     }
  7. }
  9. fmt.Println(verifiedEmails)
英文:

You can iterate over result.Detail.Contacts array and store contacts' email with "Yes" verified condition:

  1. verifiedEmails := []string{}
  3. for _, contact := range result.Detail.Contacts {
  4.     if contact.condition.verified == "Yes" {
  5.         validEmails = append(validEmails, contact.email)
  6.     }
  7. }
  9. fmt.Println(validEmails)

huangapple
  • 本文由 发表于 2022年3月10日 02:17:23
  • 转载请务必保留本文链接：https://go.coder-hub.com/71414188.html
  • arrays
  • go
  • grpc
  • nested
  • nested-attributes
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