MongoCollection

extension MongoCollection
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  • Opens a MongoDB change stream against the collection to watch for changes. The resulting stream will be notified of all events on this collection that the active user is authorized to see based on the configured MongoDB rules.

    Declaration

    Swift

    public func watch(delegate: ChangeEventDelegate, queue: DispatchQueue = .main) -> ChangeStream

    Parameters

    delegate

    The delegate that will react to events and errors from the resulting change stream.
    queue

    Dispatches streaming events to an optional queue, if no queue is provided the main queue is used

    Return Value

    A ChangeStream which will manage the streaming events.

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  • Opens a MongoDB change stream against the collection to watch for changes. The provided BSON document will be used as a match expression filter on the change events coming from the stream.

    See https://docs.mongodb.com/manual/reference/operator/aggregation/match/ for documentation around how to define a match filter.

    Defining the match expression to filter ChangeEvents is similar to defining the match expression for triggers: https://docs.mongodb.com/realm/triggers/database-triggers/

    Declaration

    Swift

    public func watch(matchFilter: Document, delegate: ChangeEventDelegate, queue: DispatchQueue = .main) -> ChangeStream

    Parameters

    matchFilter

    The $match filter to apply to incoming change events
    delegate

    The delegate that will react to events and errors from the resulting change stream.
    queue

    Dispatches streaming events to an optional queue, if no queue is provided the main queue is used

    Return Value

    A ChangeStream which will manage the streaming events.

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  • Opens a MongoDB change stream against the collection to watch for changes made to specific documents. The documents to watch must be explicitly specified by their _id.

    Declaration

    Swift

    public func watch(filterIds: [ObjectId], delegate: ChangeEventDelegate, queue: DispatchQueue = .main) -> ChangeStream

    Parameters

    filterIds

    The list of _ids in the collection to watch.
    delegate

    The delegate that will react to events and errors from the resulting change stream.
    queue

    Dispatches streaming events to an optional queue, if no queue is provided the main queue is used

    Return Value

    A ChangeStream which will manage the streaming events.

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  • Encodes the provided value to BSON and inserts it. If the value is missing an identifier, one will be generated for it.

    Declaration

    Swift

    @preconcurrency
public func insertOne(_ document: Document, _ completion: @escaping MongoInsertBlock)

    Parameters

    document

    document A Document value to insert.
    completion

    The result of attempting to perform the insert. An Id will be returned for the inserted object on sucess
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  • Encodes the provided values to BSON and inserts them. If any values are missing identifiers, they will be generated.

    Declaration

    Swift

    @preconcurrency
public func insertMany(_ documents: [Document], _ completion: @escaping MongoInsertManyBlock)

    Parameters

    documents

    The Document values in a bson array to insert.
    completion

    The result of the insert, returns an array inserted document ids in order.
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  • Finds the documents in this collection which match the provided filter.

    Declaration

    Swift

    @preconcurrency
public func find(filter: Document, options: FindOptions = FindOptions(),
                 _ completion: @escaping MongoFindBlock)

    Parameters

    filter

    A Document as bson that should match the query.
    options

    FindOptions to use when executing the command.
    completion

    The resulting bson array of documents or error if one occurs
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  • Returns one document from a collection or view which matches the provided filter. If multiple documents satisfy the query, this method returns the first document according to the query’s sort order or natural order.

    Declaration

    Swift

    @preconcurrency
public func findOneDocument(filter: Document, options: FindOptions = FindOptions(),
                            _ completion: @escaping MongoFindOneBlock)

    Parameters

    filter

    A Document as bson that should match the query.
    options

    FindOptions to use when executing the command.
    completion

    The resulting bson or error if one occurs
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  • Runs an aggregation framework pipeline against this collection.

    Declaration

    Swift

    @preconcurrency
public func aggregate(pipeline: [Document], _ completion: @escaping MongoFindBlock)

    Parameters

    pipeline

    A bson array made up of Documents containing the pipeline of aggregation operations to perform.
    completion

    The resulting bson array of documents or error if one occurs
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  • Counts the number of documents in this collection matching the provided filter.

    Declaration

    Swift

    @preconcurrency
public func count(filter: Document, limit: Int? = nil, _ completion: @escaping MongoCountBlock)

    Parameters

    filter

    A Document as bson that should match the query.
    limit

    The max amount of documents to count
    completion

    Returns the count of the documents that matched the filter.
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  • Deletes a single matching document from the collection.

    Declaration

    Swift

    @preconcurrency
public func deleteOneDocument(filter: Document, _ completion: @escaping MongoCountBlock)

    Parameters

    filter

    A Document as bson that should match the query.
    completion

    The result of performing the deletion. Returns the count of deleted objects
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  • Deletes multiple documents

    Declaration

    Swift

    @preconcurrency
public func deleteManyDocuments(filter: Document, _ completion: @escaping MongoCountBlock)

    Parameters

    filter

    Document representing the match criteria
    completion

    The result of performing the deletion. Returns the count of the deletion
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  • Updates a single document matching the provided filter in this collection.

    Declaration

    Swift

    @preconcurrency
public func updateOneDocument(filter: Document, update: Document, upsert: Bool = false,
                              _ completion: @escaping MongoUpdateBlock)

    Parameters

    filter

    A bson Document representing the match criteria.
    update

    A bson Document representing the update to be applied to a matching document.
    upsert

    When true, creates a new document if no document matches the query.
    completion

    The result of the attempt to update a document.
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  • Updates multiple documents matching the provided filter in this collection.

    Declaration

    Swift

    @preconcurrency
public func updateManyDocuments(filter: Document, update: Document, upsert: Bool = false,
                                _ completion: @escaping MongoUpdateBlock)

    Parameters

    filter

    A bson Document representing the match criteria.
    update

    A bson Document representing the update to be applied to a matching document.
    upsert

    When true, creates a new document if no document matches the query.
    completion

    The result of the attempt to update a document.
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  • Updates a single document in a collection based on a query filter and returns the document in either its pre-update or post-update form. Unlike updateOneDocument, this action allows you to atomically find, update, and return a document with the same command. This avoids the risk of other update operations changing the document between separate find and update operations.

    Declaration

    Swift

    @preconcurrency
public func findOneAndUpdate(filter: Document, update: Document,
                             options: FindOneAndModifyOptions = .init(),
                             _ completion: @escaping MongoFindOneBlock)

    Parameters

    filter

    A bson Document representing the match criteria.
    update

    A bson Document representing the update to be applied to a matching document.
    options

    RemoteFindOneAndModifyOptions to use when executing the command.
    completion

    The result of the attempt to update a document.
    Show on GitHub

  • Overwrites a single document in a collection based on a query filter and returns the document in either its pre-replacement or post-replacement form. Unlike updateOneDocument, this action allows you to atomically find, replace, and return a document with the same command. This avoids the risk of other update operations changing the document between separate find and update operations.

    Declaration

    Swift

    @preconcurrency
public func findOneAndReplace(filter: Document, replacement: Document,
                              options: FindOneAndModifyOptions = .init(),
                              _ completion: @escaping MongoFindOneBlock)

    Parameters

    filter

    A Document that should match the query.
    replacement

    A Document describing the replacement.
    options

    FindOneAndModifyOptions to use when executing the command.
    completion

    The result of the attempt to replace a document.
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  • Removes a single document from a collection based on a query filter and returns a document with the same form as the document immediately before it was deleted. Unlike deleteOneDocument, this action allows you to atomically find and delete a document with the same command. This avoids the risk of other update operations changing the document between separate find and delete operations.

    Declaration

    Swift

    @preconcurrency
public func findOneAndDelete(filter: Document, options: FindOneAndModifyOptions = .init(),
                             _ completion: @escaping MongoFindOneBlock)

    Parameters

    filter

    A Document that should match the query.
    options

    FindOneAndModifyOptions to use when executing the command.
    completion

    The result of the attempt to delete a document.
    Show on GitHub
  • insertOne(_:) Asynchronous

    Encodes the provided value to BSON and inserts it. If the value is missing an identifier, one will be generated for it.

    Declaration

    Swift

    public func insertOne(_ document: Document) async throws -> AnyBSON

    Parameters

    document

    A Document value to insert.

    Return Value

    The object id of the inserted document.

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  • insertMany(_:) Asynchronous

    Encodes the provided values to BSON and inserts them. If any values are missing identifiers, they will be generated.

    Declaration

    Swift

    public func insertMany(_ documents: [Document]) async throws -> [AnyBSON]

    Parameters

    documents

    The Document values in a bson array to insert.

    Return Value

    The object ids of inserted documents.

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  • find(filter:options:) Asynchronous

    Finds the documents in this collection which match the provided filter.

    Declaration

    Swift

    @_unsafeInheritExecutor
public func find(filter: Document, options: FindOptions? = nil) async throws -> [Document]

    Parameters

    filter

    A Document as bson that should match the query.
    options

    FindOptions to use when executing the command.

    Return Value

    Array of Document filtered.

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  • Returns one document from a collection or view which matches the provided filter. If multiple documents satisfy the query, this method returns the first document according to the query’s sort order or natural order.

    Declaration

    Swift

    @_unsafeInheritExecutor
public func findOneDocument(filter: Document, options: FindOptions? = nil) async throws -> Document?

    Parameters

    filter

    A Document as bson that should match the query.
    options

    FindOptions to use when executing the command.

    Return Value

    Document filtered.

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  • aggregate(pipeline:) Asynchronous

    Runs an aggregation framework pipeline against this collection.

    Declaration

    Swift

    public func aggregate(pipeline: [Document]) async throws -> [Document]

    Parameters

    pipeline

    A bson array made up of Documents containing the pipeline of aggregation operations to perform.

    Return Value

    An array of Document result of the aggregation operation.

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  • count(filter:limit:) Asynchronous

    Counts the number of documents in this collection matching the provided filter.

    Declaration

    Swift

    public func count(filter: Document, limit: Int? = nil) async throws -> Int

    Parameters

    filter

    A Document as bson that should match the query.
    limit

    The max amount of documents to count

    Return Value

    Count of the documents that matched the filter.

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  • Deletes a single matching document from the collection.

    Declaration

    Swift

    public func deleteOneDocument(filter: Document) async throws -> Int

    Parameters

    filter

    A Document as bson that should match the query.

    Return Value

    Int count of deleted documents.

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  • Deletes multiple documents

    Declaration

    Swift

    public func deleteManyDocuments(filter: Document) async throws -> Int

    Parameters

    filter

    Document representing the match criteria

    Return Value

    Int count of deleted documents.

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  • Updates a single document matching the provided filter in this collection.

    Declaration

    Swift

    public func updateOneDocument(filter: Document,
                              update: Document,
                              upsert: Bool? = nil) async throws -> UpdateResult

    Parameters

    filter

    A bson Document representing the match criteria.
    update

    A bson Document representing the update to be applied to a matching document.
    upsert

    When true, creates a new document if no document matches the query.

    Return Value

    UpdateResultresult of the updateOne operation.

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  • Updates multiple documents matching the provided filter in this collection.

    Declaration

    Swift

    public func updateManyDocuments(filter: Document,
                                update: Document,
                                upsert: Bool? = nil) async throws -> UpdateResult

    Parameters

    filter

    A bson Document representing the match criteria.
    update

    A bson Document representing the update to be applied to a matching document.
    upsert

    When true, creates a new document if no document matches the query.

    Return Value

    UpdateResultresult of the updateMany operation.

    Show on GitHub

  • Updates a single document in a collection based on a query filter and returns the document in either its pre-update or post-update form. Unlike updateOneDocument, this action allows you to atomically find, update, and return a document with the same command. This avoids the risk of other update operations changing the document between separate find and update operations.

    Declaration

    Swift

    @_unsafeInheritExecutor
public func findOneAndUpdate(filter: Document, update: Document,
                             options: FindOneAndModifyOptions? = nil) async throws -> Document?

    Parameters

    filter

    A bson Document representing the match criteria.
    update

    A bson Document representing the update to be applied to a matching document.
    options

    RemoteFindOneAndModifyOptions to use when executing the command.

    Return Value

    Document result of the attempt to update a document or nil if document wasn’t found.

    Show on GitHub

  • Overwrites a single document in a collection based on a query filter and returns the document in either its pre-replacement or post-replacement form. Unlike updateOneDocument, this action allows you to atomically find, replace, and return a document with the same command. This avoids the risk of other update operations changing the document between separate find and update operations.

    Declaration

    Swift

    @_unsafeInheritExecutor
public func findOneAndReplace(filter: Document, replacement: Document,
                              options: FindOneAndModifyOptions? = nil) async throws -> Document?

    Parameters

    filter

    A Document that should match the query.
    replacement

    A Document describing the replacement.
    options

    FindOneAndModifyOptions to use when executing the command.

    Return Value

    Documentresult of the attempt to reaplce a document or nil if document wasn’t found.

    Show on GitHub

  • Removes a single document from a collection based on a query filter and returns a document with the same form as the document immediately before it was deleted. Unlike deleteOneDocument, this action allows you to atomically find and delete a document with the same command. This avoids the risk of other update operations changing the document between separate find and delete operations.

    Declaration

    Swift

    @_unsafeInheritExecutor
public func findOneAndDelete(filter: Document,
                             options: FindOneAndModifyOptions? = nil) async throws -> Document?

    Parameters

    filter

    A Document that should match the query.
    options

    FindOneAndModifyOptions to use when executing the command.

    Return Value

    Document result of the attempt to delete a document or nil if document wasn’t found.

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  • Creates a publisher that emits a AnyBSON change event each time the MongoDB collection changes.

    Declaration

    Swift

    public func watch() -> Publishers.WatchPublisher

    Return Value

    A publisher that emits the AnyBSON change event each time the collection changes.

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  • Creates a publisher that emits a AnyBSON change event each time the MongoDB collection changes.

    Declaration

    Swift

    public func watch(filterIds: [ObjectId]) -> Publishers.WatchPublisher

    Parameters

    filterIds

    The list of _ids in the collection to watch.

    Return Value

    A publisher that emits the AnyBSON change event each time the collection changes.

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  • Creates a publisher that emits a AnyBSON change event each time the MongoDB collection changes.

    Declaration

    Swift

    public func watch(matchFilter: Document) -> Publishers.WatchPublisher

    Parameters

    matchFilter

    The $match filter to apply to incoming change events.

    Return Value

    A publisher that emits the AnyBSON change event each time the collection changes.

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  • An async sequence of AnyBSON values containing information about each change to the MongoDB collection

    Declaration

    Swift

    public var changeEvents: AsyncThrowingPublisher<Publishers.WatchPublisher> { get }
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  • An async sequence of AnyBSON values containing information about each change to the MongoDB collection

    Declaration

    Swift

    public func changeEvents(onOpen: @Sendable @escaping () -> Void)
        -> AsyncThrowingPublisher<Publishers.WatchPublisher>

    Parameters

    onOpen

    A callback which is invoked when the watch stream has initialized on the server. Server-side changes triggered before this callback is invoked may not produce change events.
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  • An async sequence of AnyBSON values containing information about each change to objects with ids contained in filterIds within the the MongoDB collection.

    Declaration

    Swift

    public func changeEvents(filterIds: [ObjectId], onOpen: (@Sendable () -> Void)? = nil)
        -> AsyncThrowingPublisher<Publishers.WatchPublisher>

    Parameters

    filterIds

    Document ids which should produce change events
    onOpen

    An optional callback which is invoked when the watch stream has initialized on the server. Server-side changes triggered before this callback is invoked may not produce change events.
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  • An async sequence of AnyBSON values containing information about each change to objects within the MongoDB collection matching the given $match filter.

    Declaration

    Swift

    public func changeEvents(matchFilter: Document, onOpen: (@Sendable () -> Void)? = nil)
        -> AsyncThrowingPublisher<Publishers.WatchPublisher>

    Parameters

    matchFilter

    $match filter to filter the documents which produce change events.
    onOpen

    An optional callback which is invoked when the watch stream has initialized on the server. Server-side changes triggered before this callback is invoked may not produce change events.
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  • Encodes the provided value to BSON and inserts it. If the value is missing an identifier, one will be generated for it.

    Declaration

    Swift

    func insertOne(_ document: Document) -> Future<AnyBSON, Error>

    Parameters

    document

    A Document value to insert.

    Return Value

    A publisher that eventually return the object id of the inserted document or Error.

    Show on GitHub

  • Encodes the provided values to BSON and inserts them. If any values are missing identifiers, they will be generated.

    Declaration

    Swift

    func insertMany(_ documents: [Document]) -> Future<[AnyBSON], Error>

    Parameters

    documents

    The Document values in a bson array to insert.

    Return Value

    A publisher that eventually return the object ids of inserted documents or Error.

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  • Finds the documents in this collection which match the provided filter.

    Declaration

    Swift

    func find(filter: Document, options: FindOptions) -> Future<[Document], Error>

    Parameters

    filter

    A Document as bson that should match the query.
    options

    FindOptions to use when executing the command.

    Return Value

    A publisher that eventually return [ObjectId] of documents or Error.

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  • Finds the documents in this collection which match the provided filter.

    Declaration

    Swift

    func find(filter: Document) -> Future<[Document], Error>

    Parameters

    filter

    A Document as bson that should match the query.

    Return Value

    A publisher that eventually return [ObjectId] of documents or Error.

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  • Returns one document from a collection or view which matches the provided filter. If multiple documents satisfy the query, this method returns the first document according to the query’s sort order or natural order.

    Declaration

    Swift

    func findOneDocument(filter: Document, options: FindOptions) -> Future<Document?, Error>

    Parameters

    filter

    A Document as bson that should match the query.
    options

    FindOptions to use when executing the command.

    Return Value

    A publisher that eventually return Document or Error.

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  • Returns one document from a collection or view which matches the provided filter. If multiple documents satisfy the query, this method returns the first document according to the query’s sort order or natural order.

    Declaration

    Swift

    func findOneDocument(filter: Document) -> Future<Document?, Error>

    Parameters

    filter

    A Document as bson that should match the query.

    Return Value

    A publisher that eventually return Document or nil if document wasn’t found or Error.

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  • Runs an aggregation framework pipeline against this collection.

    Declaration

    Swift

    func aggregate(pipeline: [Document]) -> Future<[Document], Error>

    Parameters

    pipeline

    A bson array made up of Documents containing the pipeline of aggregation operations to perform.

    Return Value

    A publisher that eventually return Document or Error.

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  • Counts the number of documents in this collection matching the provided filter.

    Declaration

    Swift

    func count(filter: Document, limit: Int) -> Future<Int, Error>

    Parameters

    filter

    A Document as bson that should match the query.
    limit

    The max amount of documents to count

    Return Value

    A publisher that eventually return Int count of documents or Error.

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  • Counts the number of documents in this collection matching the provided filter.

    Declaration

    Swift

    func count(filter: Document) -> Future<Int, Error>

    Parameters

    filter

    A Document as bson that should match the query.

    Return Value

    A publisher that eventually return Int count of documents or Error.

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  • Deletes a single matching document from the collection.

    Declaration

    Swift

    func deleteOneDocument(filter: Document) -> Future<Int, Error>

    Parameters

    filter

    A Document as bson that should match the query.

    Return Value

    A publisher that eventually return Int count of deleted documents or Error.

    Show on GitHub

  • Deletes multiple documents

    Declaration

    Swift

    func deleteManyDocuments(filter: Document) -> Future<Int, Error>

    Parameters

    filter

    Document representing the match criteria

    Return Value

    A publisher that eventually return Int count of deleted documents or Error.

    Show on GitHub

  • Updates a single document matching the provided filter in this collection.

    Declaration

    Swift

    func updateOneDocument(filter: Document, update: Document, upsert: Bool) -> Future<UpdateResult, Error>

    Parameters

    filter

    A bson Document representing the match criteria.
    update

    A bson Document representing the update to be applied to a matching document.
    upsert

    When true, creates a new document if no document matches the query.

    Return Value

    A publisher that eventually return UpdateResult or Error.

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  • Updates a single document matching the provided filter in this collection.

    Declaration

    Swift

    func updateOneDocument(filter: Document, update: Document) -> Future<UpdateResult, Error>

    Parameters

    filter

    A bson Document representing the match criteria.
    update

    A bson Document representing the update to be applied to a matching document.

    Return Value

    A publisher that eventually return UpdateResult or Error.

    Show on GitHub

  • Updates multiple documents matching the provided filter in this collection.

    Declaration

    Swift

    func updateManyDocuments(filter: Document, update: Document, upsert: Bool) -> Future<UpdateResult, Error>

    Parameters

    filter

    A bson Document representing the match criteria.
    update

    A bson Document representing the update to be applied to a matching document.
    upsert

    When true, creates a new document if no document matches the query.

    Return Value

    A publisher that eventually return UpdateResult or Error.

    Show on GitHub

  • Updates multiple documents matching the provided filter in this collection.

    Declaration

    Swift

    func updateManyDocuments(filter: Document, update: Document) -> Future<UpdateResult, Error>

    Parameters

    filter

    A bson Document representing the match criteria.
    update

    A bson Document representing the update to be applied to a matching document.

    Return Value

    A publisher that eventually return UpdateResult or Error.

    Show on GitHub

  • Updates a single document in a collection based on a query filter and returns the document in either its pre-update or post-update form. Unlike updateOneDocument, this action allows you to atomically find, update, and return a document with the same command. This avoids the risk of other update operations changing the document between separate find and update operations.

    Declaration

    Swift

    func findOneAndUpdate(filter: Document, update: Document, options: FindOneAndModifyOptions) -> Future<Document?, Error>

    Parameters

    filter

    A bson Document representing the match criteria.
    update

    A bson Document representing the update to be applied to a matching document.
    options

    RemoteFindOneAndModifyOptions to use when executing the command.

    Return Value

    A publisher that eventually return Document or nil if document wasn’t found or Error.

    Show on GitHub

  • Updates a single document in a collection based on a query filter and returns the document in either its pre-update or post-update form. Unlike updateOneDocument, this action allows you to atomically find, update, and return a document with the same command. This avoids the risk of other update operations changing the document between separate find and update operations.

    Declaration

    Swift

    func findOneAndUpdate(filter: Document, update: Document) -> Future<Document?, Error>

    Parameters

    filter

    A bson Document representing the match criteria.
    update

    A bson Document representing the update to be applied to a matching document.

    Return Value

    A publisher that eventually return Document or nil if document wasn’t found or Error.

    Show on GitHub

  • Overwrites a single document in a collection based on a query filter and returns the document in either its pre-replacement or post-replacement form. Unlike updateOneDocument, this action allows you to atomically find, replace, and return a document with the same command. This avoids the risk of other update operations changing the document between separate find and update operations.

    Declaration

    Swift

    func findOneAndReplace(filter: Document, replacement: Document, options: FindOneAndModifyOptions) -> Future<Document?, Error>

    Parameters

    filter

    A Document that should match the query.
    replacement

    A Document describing the replacement.
    options

    FindOneAndModifyOptions to use when executing the command.

    Return Value

    A publisher that eventually return Document or nil if document wasn’t found or Error.

    Show on GitHub

  • Overwrites a single document in a collection based on a query filter and returns the document in either its pre-replacement or post-replacement form. Unlike updateOneDocument, this action allows you to atomically find, replace, and return a document with the same command. This avoids the risk of other update operations changing the document between separate find and update operations.

    Declaration

    Swift

    func findOneAndReplace(filter: Document, replacement: Document) -> Future<Document?, Error>

    Parameters

    filter

    A Document that should match the query.
    replacement

    A Document describing the replacement.

    Return Value

    A publisher that eventually return Document or nil if document wasn’t found or Error.

    Show on GitHub

  • Removes a single document from a collection based on a query filter and returns a document with the same form as the document immediately before it was deleted. Unlike deleteOneDocument, this action allows you to atomically find and delete a document with the same command. This avoids the risk of other update operations changing the document between separate find and delete operations.

    Declaration

    Swift

    func findOneAndDelete(filter: Document, options: FindOneAndModifyOptions) -> Future<Document?, Error>

    Parameters

    filter

    A Document that should match the query.
    options

    FindOneAndModifyOptions to use when executing the command.

    Return Value

    A publisher that eventually return Document or nil if document wasn’t found or Error.

    Show on GitHub

  • Removes a single document from a collection based on a query filter and returns a document with the same form as the document immediately before it was deleted. Unlike deleteOneDocument, this action allows you to atomically find and delete a document with the same command. This avoids the risk of other update operations changing the document between separate find and delete operations.

    Declaration

    Swift

    func findOneAndDelete(filter: Document) -> Future<Document?, Error>

    Parameters

    filter

    A Document that should match the query.

    Return Value

    A publisher that eventually return Document or nil if document wasn’t found or Error.

    Show on GitHub