Imports golang.org/x/oauth2/clientcredentials github.com/go-acme/lego/v3/challenge/dns01 github.com/go-acme/lego/v3/log github.com/go-acme/lego/v3/platform/config/env golang.org/x/net/publicsuffix Standard library imports bytes context encoding/json errors fmt io/ioutil net/http net/url path strings time