Function sameServerSelector

src/sdam/server_selection.ts:71–84

(description?: ServerDescription)

 * if it is in a state that it can have commands sent to it.
 */
export function sameServerSelector(description?: ServerDescription): ServerSelector {
  return function sameServerSelector(
    _topologyDescription: TopologyDescription,
    servers: ServerDescription[],
    _deprioritized: DeprioritizedServers
  ): ServerDescription[] {
    if (!description) return [];
    // Filter the servers to match the provided description only if
    // the type is not unknown.
    return servers.filter(sd => {
      return sd.address === description.address && sd.type !== ServerType.Unknown;
    });
  };
}

/**
 * Returns a server selector that uses a read preference to select a