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Index

Properties

authdb?: string
bsonRegExp?: boolean

return BSON regular expressions as BSONRegExp instances.

checkKeys?: boolean

the serializer will check if keys are valid.

collation?: CollationOptions

Specifies the collation to use for the operation

comment?: unknown

Comment to apply to the operation.

In server versions pre-4.4, 'comment' must be string. A server error will be thrown if any other type is provided.

In server versions 4.4 and above, 'comment' can be any valid BSON type.

dbName?: string
enableUtf8Validation?: boolean

Enable utf8 validation when deserializing BSON documents. Defaults to true.

Specifies the verbosity mode for the explain output.

fieldsAsRaw?: Document

allow to specify if there what fields we wish to return as unserialized raw buffer.

fullResponse?: boolean
deprecated

This option does nothing

hint?: string | Document

Specify that the update query should only consider plans using the hinted index

ignoreUndefined?: boolean

serialize will not emit undefined fields (default:true)

let?: Document

Map of parameter names and values that can be accessed using $$var (requires MongoDB 5.0).

maxTimeMS?: number
noResponse?: boolean
omitReadPreference?: boolean
ordered?: boolean

If true, when an insert fails, don't execute the remaining writes. If false, continue with remaining inserts when one fails.

promoteBuffers?: boolean

when deserializing a Binary will return it as a node.js Buffer instance.

promoteLongs?: boolean

when deserializing a Long will fit it into a Number if it's smaller than 53 bits

promoteValues?: boolean

when deserializing will promote BSON values to their Node.js closest equivalent types.

raw?: boolean

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:

example
const raw = await collection.findOne({}, { raw: true });
const myBuffer = Buffer.alloc(raw.byteLength);
myBuffer.set(raw, 0);
// Only save and use `myBuffer` beyond this point
remarks

Please note there is a known limitation where this option cannot be used at the MongoClient level (see NODE-3946). It does correctly work at Db, Collection, and per operation the same as other BSON options work.

readConcern?: ReadConcernLike

Specify a read concern and level for the collection. (only MongoDB 3.2 or higher supported)

readPreference?: ReadPreferenceLike

The preferred read preference (ReadPreference.primary, ReadPreference.primary_preferred, ReadPreference.secondary, ReadPreference.secondary_preferred, ReadPreference.nearest).

retryWrites?: boolean

Should retry failed writes

serializeFunctions?: boolean

serialize the javascript functions (default:false).

session?: ClientSession

Specify ClientSession for this command

single?: boolean
deprecated

use removeOne or removeMany to implicitly specify the limit

willRetryWrite?: boolean

Write Concern as an object

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