...
var notification newReleaseNotification
json.NewDecoder(strings.NewReader(payload)).Decode(&notification)
err := tweet(notification.Details(), fnCtx.Config()["twitter_consumerkey"], fnCtx.Config()["twitter_consumersecret"], fnCtx.Config()["twitter_accesstoken"], fnCtx.Config()["twitter_accesstokensecret"])

if err != nil {
	fdk.WriteStatus(out, 500)
	prob := "Could not tweet new release details due to " + err.Error()
	log.Println(prob)
	return
}
...

//tweet

func tweet(tweet, consumerkey, consumersecret, accesstoken, accesstokensecret string) error {
	anaconda.SetConsumerKey(consumerkey)
	anaconda.SetConsumerSecret(consumersecret)
	api := anaconda.NewTwitterApi(accesstoken, accesstokensecret)

	_, err := api.PostTweet(tweet, url.Values{})

	if err != nil {
		return err
	}

	return nil
}