If the database authentication is dependent on another databaseName.
return BSON regular expressions as BSONRegExp instances.
the serializer will check if keys are valid.
Enable utf8 validation when deserializing BSON documents. Defaults to true.
allow to specify if there what fields we wish to return as unserialized raw buffer.
Force server to assign _id values instead of driver.
serialize will not emit undefined fields (default:true)
A primary key factory object for generation of custom _id keys.
when deserializing a Binary will return it as a node.js Buffer instance.
when deserializing a Long will fit it into a Number if it's smaller than 53 bits.
when deserializing will promote BSON values to their Node.js closest equivalent types.
Enabling the raw option will return a Node.js Buffer which is allocated using allocUnsafe API. See this section from the Node.js Docs here for more detail about what "unsafe" refers to in this context. If you need to maintain your own editable clone of the bytes returned for an extended life time of the process, it is recommended you allocate your own buffer and clone the contents:
Specify a read concern for the collection. (only MongoDB 3.2 or higher supported)
The preferred read preference (ReadPreference.PRIMARY, ReadPreference.PRIMARY_PREFERRED, ReadPreference.SECONDARY, ReadPreference.SECONDARY_PREFERRED, ReadPreference.NEAREST).
Should retry failed writes
when deserializing a Long will return as a BigInt.
Write Concern as an object
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