goweb/cqrs/service.go

35 lines
791 B
Go

package cqrs
import (
"github.com/pkg/errors"
"gitlab.com/wpetit/goweb/service"
)
// ServiceName defines the cqrs service name
const ServiceName service.Name = "cqrs"
// From retrieves the cqrs service in the given container
func From(container *service.Container) (*Bus, error) {
raw, err := container.Service(ServiceName)
if err != nil {
return nil, errors.Wrapf(err, "error while retrieving '%s' service", ServiceName)
}
srv, ok := raw.(*Bus)
if !ok {
return nil, errors.Errorf("retrieved service is not a valid '%s' service", ServiceName)
}
return srv, nil
}
// Must retrieves the cqrs service in the given container or panic otherwise
func Must(container *service.Container) *Bus {
service, err := From(container)
if err != nil {
panic(err)
}
return service
}