golang http client 使用代理

const (
    EnableHttpProxy = true
    HttpProxyUrl    = "http://127.0.0.1:8118"
)

func SetHttpProxy() (httpclient http.Client) {
    ProxyURL, _ := url.Parse(HttpProxyUrl)
    httpclient = http.Client{
        Transport: &http.Transport{
            Proxy: http.ProxyURL(ProxyURL),
        },
    }
    return httpclient
}

func main() {
    var client http.Client

    if EnableHttpProxy {
        client = SetHttpProxy()
    }

    //生成要访问的url
    url := "https://api.my.com"
    //提交请求
    reqest, err := http.NewRequest("GET", url, nil)

    //增加header选项
    reqest.Header.Add("sec-ch-ua", "Not A;Brand\";v=\"99\", \"Chromium\";v=\"98\", \"Google Chrome\";v=\"98\"")
    reqest.Header.Add("sec-ch-ua-mobile", "?0")
    reqest.Header.Add("User-Agent", "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/98.0.4758.102 Safari/537.36")

    if err != nil {
        panic(err)
    }
    //处理返回结果
    response, _ := client.Do(reqest)
    defer response.Body.Close()