Yu1709$!%yuyu!$%wutu!5=126+

                
____  ___       .__                 
\   \/  /  _____|  |   ______  _  __
 \     /  /  ___/  |  /  _ \ \/ \/ /
 /     \  \___ \|  |_(  <_> )     / 
/___/\  \/____  >____/\____/ \/\_/  
      \_/     \/    @ligmakokz

Editing: shared.ts

import { MongoInvalidArgumentError } from '../../error';
import type { ReadPreferenceLike } from '../../read_preference';
import { ReadPreference } from '../../read_preference';
import { ServerType } from '../../sdam/common';
import type { Server } from '../../sdam/server';
import type { ServerDescription } from '../../sdam/server_description';
import type { Topology } from '../../sdam/topology';
import { TopologyDescription } from '../../sdam/topology_description';
import type { Connection } from '../connection';

export interface ReadPreferenceOption {
  readPreference?: ReadPreferenceLike;
}

export function getReadPreference(options?: ReadPreferenceOption): ReadPreference {
  // Default to command version of the readPreference
  let readPreference = options?.readPreference ?? ReadPreference.primary;
  // If we have an option readPreference override the command one
  if (options?.readPreference) {
    readPreference = options.readPreference;
  }

if (typeof readPreference === 'string') {
    readPreference = ReadPreference.fromString(readPreference);
  }

if (!(readPreference instanceof ReadPreference)) {
    throw new MongoInvalidArgumentError(
      'Option "readPreference" must be a ReadPreference instance'
    );
  }

return readPreference;
}

export function isSharded(topologyOrServer?: Topology | Server | Connection): boolean {
  if (topologyOrServer == null) {
    return false;
  }

if (topologyOrServer.description && topologyOrServer.description.type === ServerType.Mongos) {
    return true;
  }

// NOTE: This is incredibly inefficient, and should be removed once command construction
  //       happens based on `Server` not `Topology`.
  if (topologyOrServer.description && topologyOrServer.description instanceof TopologyDescription) {
    const servers: ServerDescription[] = Array.from(topologyOrServer.description.servers.values());
    return servers.some((server: ServerDescription) => server.type === ServerType.Mongos);
  }

return false;
}

Name	Type	Actions
compression.ts	File
constants.ts	File
shared.ts	File