func (n *ng) GetBackend(key engine.BackendKey) (*engine.Backend, error) {
backendKey := n.path("backends", key.Id, "backend")
bytes, err := n.getVal(backendKey)
if err != nil {
return nil, err
}
return engine.BackendFromJSON([]byte(bytes), key.Id)
}
func parseBackendPack(v []byte) (*engine.Backend, error) {
var bp *backendReadPack
if err := json.Unmarshal(v, &bp); err != nil {
return nil, err
}
if bp == nil || len(bp.Backend) == 0 {
return nil, &scroll.MissingFieldError{Field: "Backend"}
}
return engine.BackendFromJSON(bp.Backend)
}