sendRequest

func sendRequest(c http.Client, rc request) string {
    req, err := http.NewRequest(rc.method, rc.url, nil)
    if err != nil {
        log.Fatalln(err)
        os.Exit(1)
    }

    if len(rc.params) != 0 {
        q := req.URL.Query()
        for k, v := range rc.params {
            q.Add(k, v)
        }
        req.URL.RawQuery = q.Encode()
    }

    req.Header.Set("Authorization", "Bearer "+rc.token)

    resp, err := c.Do(req)
    if err != nil {
        log.Fatalln(err)
    }
    defer resp.Body.Close()
    body, err := ioutil.ReadAll(resp.Body)
    if err != nil {
        log.Fatalln(err)
    }

    var result map[string]interface{}
    json.Unmarshal([]byte(body), &result)

    user := result["data"].([]interface{})[0]
    return user.(map[string]interface{})["id"].(string)
}