goweb/service/session/service.go

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2018-12-06 15:18:05 +01:00
package session
import (
"net/http"
"github.com/pkg/errors"
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"gitlab.com/wpetit/goweb/service"
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)
// ServiceName defines the Session service name
const ServiceName service.Name = "session"
// Service defines the API of a "http session" service
type Service interface {
Get(http.ResponseWriter, *http.Request) (Session, error)
}
// From retrieves the session service in the given container
func From(container *service.Container) (Service, error) {
service, err := container.Service(ServiceName)
if err != nil {
return nil, errors.Wrapf(err, "error while retrieving '%s' service", ServiceName)
}
sessionService, ok := service.(Service)
if !ok {
return nil, errors.Errorf("retrieved service is not a valid '%s' service", ServiceName)
}
return sessionService, nil
}
// Must retrieves the session service in the given container or panic otherwise
func Must(container *service.Container) Service {
service, err := From(container)
if err != nil {
panic(err)
}
return service
}