基本上,我需要在 Go 中实现以下方法 - https://api.slack.com/methods/users.lookupByEmail。我试着这样做:import ( "bytes" "encoding/json" "errors" "io/ioutil" "net/http")type Payload struct { Email string `json:"email,omitempty"` }// assume the following code is inside some functionclient := &http.Client{}payload := Payload{ Email: "octocat@github.com",}body, err := json.Marshal(payload)if err != nil { return "", err}req, err := http.NewRequest("GET", "https://slack.com/api/users.lookupByEmail", bytes.NewReader(body))if err != nil { return "", err}req.Header.Add("Authorization", "Bearer "+token)req.Header.Add("Content-Type", "application/x-www-form-urlencoded")resp, err := client.Do(req)if err != nil { return "", err}defer resp.Body.Close()if resp.StatusCode != 200 { t, _ := ioutil.ReadAll(resp.Body) return "", errors.New(string(t))}responseData, err := ioutil.ReadAll(resp.Body)if err != nil { return "", err}return string(responseData), nil但是我收到一个错误,即“电子邮件”字段丢失,这很明显,因为此内容类型不支持 JSON 有效负载: {"ok":false,"error":"invalid_arguments","response_metadata":{"messages":["[ERROR] missing required field: email"]}} (type: string)我找不到如何在 GET 请求中包含发布表单 - http.NewRequest 和 http.Client.Get 都没有可用的发布表单参数;http.Client.PostForm 发出 POST 请求,但在这种情况下需要 GET。另外,我认为我必须在这里使用 http.NewRequest (除非存在另一种方法),因为我需要设置 Authorization 标头。
1 回答
翻过高山走不出你
TA贡献1875条经验 获得超3个赞
你误解了application/x-www-form-urlencoded标题,你应该在这里传递一个 URL 参数。看一个例子:
import (
...
"net/url"
...
)
data := url.Values{}
data.Set("email", "foo@bar.com")
data.Set("token", "SOME_TOKEN_GOES_HERE")
r, _ := http.NewRequest("GET", "https://slack.com/api/users.lookupByEmail", strings.NewReader(data.Encode()))
r.Header.Add("Content-Type", "application/x-www-form-urlencoded")
r.Header.Add("Content-Length", strconv.Itoa(len(data.Encode())))
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