Go

Find a Label ID by Name

See more GMail REST API Examples

Lookup the ID of a GMail label by the label name. Go

    success := false

    // This example requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    http := chilkat.NewHttp()
    http.SetAuthToken("GMAIL-ACCESS-TOKEN")

    userId := "me"
    http.SetUrlVar("userId",userId)

    url := "https://www.googleapis.com/gmail/v1/users/{$userId}/labels"

    // Get the list of GMail labels as JSON.
    sb := chilkat.NewStringBuilder()
    success = http.QuickGetSb(url,sb)
    if success != true {
        fmt.Println(http.LastErrorText())
        http.DisposeHttp()
        sb.DisposeStringBuilder()
        return
    }

    json := chilkat.NewJsonObject()
    json.LoadSb(sb)
    json.SetEmitCompact(false)
    fmt.Println(*json.Emit())

    if http.LastStatus() != 200 {
        fmt.Println("Failed.")
        http.DisposeHttp()
        sb.DisposeStringBuilder()
        json.DisposeJsonObject()
        return
    }

    // The JSON returned looks like this:
    // {
    //   "labels": [
    //     {
    //       "id": "Label_5",
    //       "name": "QA",
    //       "messageListVisibility": "show",
    //       "labelListVisibility": "labelShow",
    //       "type": "user"
    //     },
    //     {
    //       "id": "Label_21",
    //       "name": "[Gmail]/testFolder",
    //       "type": "user"
    //     },
    //     {
    //       "id": "CATEGORY_PERSONAL",
    //       "name": "CATEGORY_PERSONAL",
    //       "type": "system"
    //     },
    // 	...

    // The name of the label is generally known because it's what we visually see.
    // The id is what we need to get.  Assuming the name is unique,
    // find the JSON record having name=<desired name>
    // For example...
    jRecord := json.FindRecord("labels","name","QA",false)
    if json.LastMethodSuccess() == true {
        fmt.Println("The id of QA is: ", *jRecord.StringOf("id"))
        jRecord.DisposeJsonObject()
    }

    jRecord = json.FindRecord("labels","name","[Gmail]/testFolder",false)
    if json.LastMethodSuccess() == true {
        fmt.Println("The id of [Gmail]/testFolder is: ", *jRecord.StringOf("id"))
        jRecord.DisposeJsonObject()
    }

    jRecord = json.FindRecord("labels","name","questions",false)
    if json.LastMethodSuccess() == true {
        fmt.Println("The id of questions is: ", *jRecord.StringOf("id"))
        jRecord.DisposeJsonObject()
    }

    // Output:

    // The id of QA is: Label_5
    // The id of [Gmail]/testFolder is: Label_21
    // The id of questions is: Label_43

    http.DisposeHttp()
    sb.DisposeStringBuilder()
    json.DisposeJsonObject()