I'm trying to use apify proxys without sdk, using my own framework. But i keep getting Proxy Authentication Required errors.

golang
func NewApifyProxyClientFromEnv() (*ApifyProxyClient, error) {
    hostname := os.Getenv("APIFY_PROXY_HOSTNAME")
    port := os.Getenv("APIFY_PROXY_PORT")
    password := os.Getenv("APIFY_PROXY_PASSWORD")

    // Dump all environment variables for debugging
    proxyClientLog.Debug("Dumping all environment variables:")
    for _, env := range os.Environ() {
        if strings.Contains(env, "APIFY_PROXY_PASSWORD") {
            proxyClientLog.Debugf("  %s=********", strings.SplitN(env, "=", 2)[0])
        } else {
            proxyClientLog.Debugf("  %s", env)
        }
    }

    if hostname == "" || port == "" || password == "" {
        return nil, fmt.Errorf("APIFY_PROXY_HOSTNAME, APIFY_PROXY_PORT, or APIFY_PROXY_PASSWORD environment variables not set")
    }

    groups := []string{"BUYPROXIES94952"} 
    if groupsStr := os.Getenv("APIFY_PROXY_GROUPS"); groupsStr != "" {
        groups = strings.Split(groupsStr, ",")
    }

    return NewApifyProxyClient(hostname, port, password, groups, "", ""), nil // Pass empty strings for session and country
}

INFO[2025-07-17T16:34:52Z] Assigned session-specific proxy groups-BUYPROXIES98951,session-global_pool_session_0:*********@10.0.47.64:8011 to session global-pool-session-0 I'm not sure what is wrong, this is beeing run inside the apify containers, i've checked that the envs are correct and tested using a simpler session name. i always get : WARNING[2025-07-17T16:43:59Z] Worker: Request via proxy 10.0.90.88:8011 failed with status 403 (attempt 1/3). Retrying... component=httpclient

message has been deleted

never mind, i've just realized i was getting a 407 proxy error and i've fixed it and now it is 403, the apify datacenter proxy does not work with the site