Mongo::Options

Passed into the server in the client metadata as part of the connection handshake

The authentication mechanism method to use for connection to the server

Additional options provided for authentication (e.g. to enable hostname canonicalization for GSSAPI)

The database that connections should authenticate against

The database that connections should authenticate against

The list of allowed compression types for wire protocol messages sent or received from the server

Amount of time to wait for a single TCP socket connection to the server to be established before erroring; note that this applies to SDAM isMaster operations

Whether to connect to the deployment in Single topology.

Use custom dns resolver. Non-standard.

By default, the Cloudflare public DNS is used. (1.1.1.1)

The interval between regular server monitoring checks

The interval between regular server monitoring checks

Default write concern "j" field for the client

The amount of time beyond the fastest round trip time that a given server’s round trip time can take and still be eligible for server selection

The amount of time a connection can be idle before it's closed

The maximum number of clients or connections able to be created by a pool at a given time

The maximum replication lag, in wall clock time, that a secondary can suffer and still be eligible for server selection

The maximum number of clients or connections able to be created by a pool at a given time

Default read concern for the client

Default read preference for the client (excluding tags)

Default read preference tags for the client; only valid if the read preference mode is not primary

The name of the replica set to connect to

The name of the replica set to connect to

Enables retryable reads on server 3.6+

Enables retryable writes on server 3.6+

A timeout in milliseconds to block for server selection before raising an error

A timeout in milliseconds to block for server selection before raising an error

Scan the topology only once after a server selection failure instead of repeatedly until the server selection times out

Scan the topology only once after a server selection failure instead of repeatedly until the server selection times out

Amount of time spent attempting to send or receive on a socket before timing out; note that this only applies to application operations, not SDAM

Alias of "tls"; required to ensure that Atlas connection strings continue to work

Alias of "tls"; required to ensure that Atlas connection strings continue to work

Whether or not to require TLS for connections to the server

Specifies whether or not the driver should error when the server’s TLS certificate is invalid

Specifies whether or not the driver should error when there is a mismatch between the server’s hostname and the hostname specified by the TLS certificate

Path to file with either a single or bundle of certificate authorities to be considered trusted when making a TLS connection

Path to the client certificate file or the client private key file; in the case that they both are needed, the files should be concatenated

Password to decrypt the client private key to be used for TLS connections

Controls whether or not the driver will check a certificate's revocation status via CRLs or OCSP. See the OCSP Support Spec for additional information.

Controls whether or not the driver will reach out to OCSP endpoints if needed. See the OCSP Support Spec for additional information.

Relax TLS constraints as much as possible (e.g. allowing invalid certificates or hostname mismatches); drivers must document the exact constraints which are relaxed by this option being true

Default write concern "w" field for the client

Default write concern "wtimeout" field for the client

The maximum amount of time a fiber can wait for a connection to become available

Specifies the level of compression when using zlib to compress wire protocol messages; -1 signifies the default level, 0 signifies no compression, 1 signifies the fastest speed, and 9 signifies the best compression