oauth - golang google oauth2 - ユーザー情報を取得できません (ライブラリ: https://github.com/golang/oauth2)

Question

Google oauth2 に次のライブラリを使用していますhttps://github.com/golang/oauth2

例にあるコードを使用しています (url : http://play.golang.org/p/qXyuaVEhyS、https://godoc.org/golang.org/x/oauth2/google )

認証コードとトークンを取得できますが、ユーザー情報を取得するための get リクエストを行うことができません

マイコード :

conf := &oauth2.Config{
        ClientID:     "my client id",
        ClientSecret: "secred id",
        RedirectURL:  "http://localhost:3000/googlelogin",
        Scopes: []string{
            "https://www.googleapis.com/auth/userinfo.profile",
        },
        Endpoint: google.Endpoint,
    }

m.Get("/googleloginrequest", func(r render.Render, request *http.Request) {

    url := conf.AuthCodeURL("state")
    fmt.Printf("Visit the URL for the auth dialog: %v", url)

    r.Redirect(url)

})

m.Get("/googlelogin", func(r render.Render, request *http.Request) {

        authcode := request.FormValue("code")

        tok, err := conf.Exchange(oauth2.NoContext, authcode)
        if err != nil {
            log.Fatal(err)
        }

        client := conf.Client(oauth2.NoContext, tok)

        resp, err :=client.Get("https://www.googleapis.com/userinfo/v2/me")

        r.JSON(200, map[string]interface{}{"status":resp})
    })

ここで得られる応答は非常に大きく、ユーザー情報はありません

応答 ：

 200 OK","StatusCode":200,"Proto":"HTTP/1.1","ProtoMajor":1,"ProtoMinor":1,"Header":{"Alternate-
Protocol":["443:quic,p=0.02"],"Cache-Control":["no-cache, no-store, max-age=0, must-
revalidate"],"Content-Type":["application/json; charset=UTF-8"],"Date":["Tue, 23 Dec 2014 18:18:19 
    GMT"],"Expires":["Fri, 01 Jan 1990 00:00:00 GMT"],"Pragma":["no-cache"],"Server":["GSE"],"Vary":
    ["Origin","X-Origin"],"X-Content-Type-Options":["nosniff"],"X-Frame-Options":["SAMEORIGIN"],"X-Xss-
    Protection":["1; mode=block"]},"Body":{},"ContentLength":-1,"TransferEncoding":
    ["chunked"],"Close":false,"Trailer":null,"Request":{"Method":"GET","URL":
 {"Scheme":"https","Opaque":"","User":null,"Host":"www.googleapis.com","Path":"/userinfo/v2/me","RawQuery
    ":"","Fragment":""},"Proto":"HTTP/1.1","ProtoMajor":1,"ProtoMinor":1,"Header":{"Authorization":["Bearer 
    ya29.5QDPWWRKB7tNkdB2Yvm0PCST9LF_iQhjN1Y0g2abE-
    lnw9BNgEd_n3A85ZfJzDNYZywqqElCb7Z2xA"]},"Body":null,"ContentLength":0,"TransferEncoding":null,"Close":fa
    lse,"Host":"www.googleapis.com","Form":null,"PostForm":null,"MultipartForm":null,"Trailer":null,"RemoteA
    ddr":"","RequestURI":"","TLS":null},"TLS":{"Version":771,"HandshakeComplete":true,"DidResume":false, 
    ....

上記のシナリオで機能する他の作業ライブラリ/コードを手伝うか、提案してください