48 lines
770 B
Go
48 lines
770 B
Go
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package discovery
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import (
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"net/url"
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"os"
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)
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var Default = NewService()
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type Provider interface {
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Discover(serviceUrn string) (*url.URL, error)
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}
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type Service struct {
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token string
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providers []Provider
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}
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func (s *Service) Discover(serviceUrn string) (*url.URL, error) {
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for idx := range s.providers {
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provider := s.providers[idx]
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u, err := provider.Discover(serviceUrn)
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if err == nil {
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return u, nil
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}
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}
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return nil, os.ErrNotExist
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}
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func (s *Service) WithToken(token string) *Service {
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s.token = token
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return s
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}
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func (s *Service) WithProvider(provider Provider) *Service {
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s.providers = append(s.providers, provider)
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return s
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}
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func NewService() *Service {
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return &Service{
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providers: []Provider{
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NewLocalDiscovery(),
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},
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}
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}
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