Function parseOptions

src/connection_string.ts:237–549

(
  uri: string,
  mongoClient: MongoClient | MongoClientOptions | undefined = undefined,
  options: MongoClientOptions = {}
)

}

export function parseOptions(
  uri: string,
  mongoClient: MongoClient | MongoClientOptions | undefined = undefined,
  options: MongoClientOptions = {}
): MongoOptions {
  if (mongoClient != null && !(mongoClient instanceof MongoClient)) {
    options = mongoClient;
    mongoClient = undefined;
  }

  class="cm">// validate BSONOptions
  if (options.useBigInt64 && typeof options.promoteLongs === class="st">'boolean' && !options.promoteLongs) {
    throw new MongoAPIError(class="st">'Must request either bigint or Long for int64 deserialization');
  }

  if (options.useBigInt64 && typeof options.promoteValues === class="st">'boolean' && !options.promoteValues) {
    throw new MongoAPIError(class="st">'Must request either bigint or Long for int64 deserialization');
  }

  const url = new ConnectionString(uri);
  const { hosts, isSRV } = url;

  const mongoOptions = Object.create(null);

  mongoOptions.hosts = isSRV ? [] : hosts.map(HostAddress.fromString);

  const urlOptions = new CaseInsensitiveMap<unknown[]>();

  if (url.pathname !== class="st">'/' && url.pathname !== class="st">'') {
    const dbName = decodeURIComponent(
      url.pathname[0] === class="st">'/' ? url.pathname.slice(1) : url.pathname
    );
    if (dbName) {
      urlOptions.set(class="st">'dbName', [dbName]);
    }
  }

  if (url.username !== class="st">'') {
    const auth: Document = {
      username: decodeURIComponent(url.username)
    };

    if (typeof url.password === class="st">'string') {
      auth.password = decodeURIComponent(url.password);
    }

    urlOptions.set(class="st">'auth', [auth]);
  }

  for (const key of url.searchParams.keys()) {
    const values = url.searchParams.getAll(key);

    const isReadPreferenceTags = /readPreferenceTags/i.test(key);

    if (!isReadPreferenceTags && values.length > 1) {
      throw new MongoInvalidArgumentError(
        `URI option class="st">"${key}" cannot appear more than once in the connection string`
      );