mongo

package
v0.0.15 Latest Latest
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 Go to latest Published: Sep 27, 2018 License: Apache-2.0 Imports: 43 Imported by: 19,491

Documentation

Overview

Package mongo provides a MongoDB Driver API for Go.

Basic usage of the driver starts with creating a Client from a connection string. To do so, call the NewClient and Connect functions: 

client, err := mongo.NewClient("mongodb://foo:bar@localhost:27017")
if err != nil { log.Fatal(err) }
err = client.Connect(context.TODO())
if err != nil { log.Fatal(err) }

This will create a new client and start monitoring the MongoDB server on localhost. The Database and Collection types can be used to access the database: 

collection := client.Database("baz").Collection("qux")

A Collection can be used to query the database or insert documents: 

res, err := collection.InsertOne(context.Background(), map[string]string{"hello": "world"})
if err != nil { log.Fatal(err) }
id := res.InsertedID

Several methods return a cursor, which can be used like this: 

cur, err := collection.Find(context.Background(), nil)
if err != nil { log.Fatal(err) }
defer cur.Close(context.Background())
for cur.Next(context.Background()) {
   elem := bson.NewDocument()
   err := cur.Decode(elem)
   if err != nil { log.Fatal(err) }
   // do something with elem....
}
if err := cur.Err(); err != nil {
    log.Fatal(err)
}

Methods that only return a single document will return a *DocumentResult, which works like a *sql.Row: 

result := bson.NewDocument()
filter := bson.NewDocument(bson.EC.String("hello", "world"))
err := collection.FindOne(context.Background(), filter).Decode(result)
if err != nil { log.Fatal(err) }
// do something with result...

Additional examples can be found under the examples directory in the driver's repository and on the MongoDB website.

Index

Constants

This section is empty.

Variables

View Source 
var ErrInvalidIndexValue = errors.New("invalid index value")

ErrInvalidIndexValue indicates that the index Keys document has a value that isn't either a number or a string.

View Source 
var ErrMissingResumeToken = errors.New("cannot provide resume functionality when the resume token is missing")

ErrMissingResumeToken indicates that a change stream notification from the server did not contain a resume token.

View Source 
var ErrMultipleIndexDrop = errors.New("multiple indexes would be dropped")

ErrMultipleIndexDrop indicates that multiple indexes would be dropped from a call to IndexView.DropOne.

View Source 
var ErrNoDocuments = errors.New("mongo: no documents in result")

ErrNoDocuments is returned by Decode when an operation that returns a DocumentResult doesn't return any documents.

View Source 
var ErrNonStringIndexName = errors.New("index name must be a string")

ErrNonStringIndexName indicates that the index name specified in the options is not a string.

View Source 
var ErrUnacknowledgedWrite = errors.New("unacknowledged write")

ErrUnacknowledgedWrite is returned from functions that have an unacknowledged write concern.

View Source 
var ErrWrongClient = errors.New("session was not created by this client")

ErrWrongClient is returned when a user attempts to pass in a session created by a different client than the method call is using.

Functions

This section is empty.

Types

type BSONAppender added in v0.0.15 

type BSONAppender interface {
	AppendBSON([]byte, interface{}) ([]byte, error)
}

BSONAppender is an interface implemented by types that can marshal a provided type into BSON bytes and append those bytes to the provided []byte. The AppendBSON can return a non-nil error and non-nil []byte. The AppendBSON method may also write incomplete BSON to the []byte.

type BSONAppenderFunc added in v0.0.15 

type BSONAppenderFunc func([]byte, interface{}) ([]byte, error)

BSONAppenderFunc is an adapter function that allows any function that satisfies the AppendBSON method signature to be used where a BSONAppender is used.

func (BSONAppenderFunc) AppendBSON added in v0.0.15 

func (baf BSONAppenderFunc) AppendBSON(dst []byte, val interface{}) ([]byte, error)

AppendBSON implements the BSONAppender interface

type BulkWriteError added in v0.0.4 

type BulkWriteError struct {
	WriteErrors       WriteErrors
	WriteConcernError *WriteConcernError
}

BulkWriteError is an error returned from a bulk write operation.

func (BulkWriteError) Error added in v0.0.4 

func (bwe BulkWriteError) Error() string

type Client 

type Client struct {
	// contains filtered or unexported fields
}

Client performs operations on a given topology.

func Connect added in v0.0.3 

func Connect(ctx context.Context, uri string, opts ...clientopt.Option) (*Client, error)

Connect creates a new Client and then initializes it using the Connect method.

func NewClient 

func NewClient(uri string) (*Client, error)

NewClient creates a new client to connect to a cluster specified by the uri.

func NewClientFromConnString 

func NewClientFromConnString(cs connstring.ConnString) (*Client, error)

NewClientFromConnString creates a new client to connect to a cluster, with configuration specified by the connection string.

func NewClientWithOptions added in v0.0.3 

func NewClientWithOptions(uri string, opts ...clientopt.Option) (*Client, error)

NewClientWithOptions creates a new client to connect to to a cluster specified by the connection string and the options manually passed in. If the same option is configured in both the connection string and the manual options, the manual option will be ignored.

func (*Client) Connect added in v0.0.3 

func (c *Client) Connect(ctx context.Context) error

Connect initializes the Client by starting background monitoring goroutines. This method must be called before a Client can be used.

func (*Client) ConnectionString 

func (c *Client) ConnectionString() string

ConnectionString returns the connection string of the cluster the client is connected to.

func (*Client) Database 

func (c *Client) Database(name string, opts ...dbopt.Option) *Database

Database returns a handle for a given database.

func (*Client) Disconnect added in v0.0.3 

func (c *Client) Disconnect(ctx context.Context) error

Disconnect closes sockets to the topology referenced by this Client. It will shut down any monitoring goroutines, close the idle connection pool, and will wait until all the in use connections have been returned to the connection pool and closed before returning. If the context expires via cancellation, deadline, or timeout before the in use connections have returned, the in use connections will be closed, resulting in the failure of any in flight read or write operations. If this method returns with no errors, all connections associated with this Client have been closed.

func (*Client) ListDatabaseNames added in v0.0.3 

func (c *Client) ListDatabaseNames(ctx context.Context, filter interface{}, opts ...listdbopt.ListDatabases) ([]string, error)

ListDatabaseNames returns a slice containing the names of all of the databases on the server.

func (*Client) ListDatabases added in v0.0.3 

func (c *Client) ListDatabases(ctx context.Context, filter interface{}, opts ...listdbopt.ListDatabases) (ListDatabasesResult, error)

ListDatabases returns a ListDatabasesResult.

func (*Client) Ping added in v0.0.14 

func (c *Client) Ping(ctx context.Context, rp *readpref.ReadPref) error

Ping verifies that the client can connect to the topology. If readPreference is nil then will use the client's default read preference.

func (*Client) StartSession added in v0.0.10 

func (c *Client) StartSession(opts ...sessionopt.Session) (*Session, error)

StartSession starts a new session.

func (*Client) ValidSession added in v0.0.10 

func (c *Client) ValidSession(sess *session.Client) error

ValidSession returns an error if the session doesn't belong to the client

type Collection 

type Collection struct {
	// contains filtered or unexported fields
}

Collection performs operations on a given collection.

func (*Collection) Aggregate 

func (coll *Collection) Aggregate(ctx context.Context, pipeline interface{},
	opts ...aggregateopt.Aggregate) (Cursor, error)

Aggregate runs an aggregation framework pipeline. A user can supply a custom context to this method.

See https://docs.mongodb.com/manual/aggregation/.

This method uses TransformDocument to turn the pipeline parameter into a *bson.Document. See TransformDocument for the list of valid types for pipeline.

func (*Collection) Clone added in v0.0.9 

func (coll *Collection) Clone(opts ...collectionopt.Option) (*Collection, error)

Clone creates a copy of this collection with updated options, if any are given.

func (*Collection) Count 

func (coll *Collection) Count(ctx context.Context, filter interface{},
	opts ...countopt.Count) (int64, error)

Count gets the number of documents matching the filter. A user can supply a custom context to this method, or nil to default to context.Background().

This method uses TransformDocument to turn the filter parameter into a *bson.Document. See TransformDocument for the list of valid types for filter.

func (*Collection) CountDocuments added in v0.0.11 

func (coll *Collection) CountDocuments(ctx context.Context, filter interface{},
	opts ...countopt.Count) (int64, error)

CountDocuments gets the number of documents matching the filter. A user can supply a custom context to this method, or nil to default to context.Background().

This method uses countDocumentsAggregatePipeline to turn the filter parameter and options into aggregate pipeline.

func (*Collection) Database added in v0.0.15 

func (coll *Collection) Database() *Database

Database provides access to the database that contains the collection.

func (*Collection) DeleteMany 

func (coll *Collection) DeleteMany(ctx context.Context, filter interface{},
	opts ...deleteopt.Delete) (*DeleteResult, error)

DeleteMany deletes multiple documents from the collection. A user can supply a custom context to this method, or nil to default to context.Background().

This method uses TransformDocument to turn the filter parameter into a *bson.Document. See TransformDocument for the list of valid types for filter.

func (*Collection) DeleteOne 

func (coll *Collection) DeleteOne(ctx context.Context, filter interface{},
	opts ...deleteopt.Delete) (*DeleteResult, error)

DeleteOne deletes a single document from the collection. A user can supply a custom context to this method, or nil to default to context.Background().

This method uses TransformDocument to turn the filter parameter into a *bson.Document. See TransformDocument for the list of valid types for filter.

func (*Collection) Distinct 

func (coll *Collection) Distinct(ctx context.Context, fieldName string, filter interface{},
	opts ...distinctopt.Distinct) ([]interface{}, error)

Distinct finds the distinct values for a specified field across a single collection. A user can supply a custom context to this method, or nil to default to context.Background().

This method uses TransformDocument to turn the filter parameter into a *bson.Document. See TransformDocument for the list of valid types for filter.

func (*Collection) Drop added in v0.0.4 

func (coll *Collection) Drop(ctx context.Context, opts ...dropcollopt.DropColl) error

Drop drops this collection from database.

func (*Collection) EstimatedDocumentCount added in v0.0.11 

func (coll *Collection) EstimatedDocumentCount(ctx context.Context,
	opts ...countopt.EstimatedDocumentCount) (int64, error)

EstimatedDocumentCount gets an estimate of the count of documents in a collection using collection metadata.

func (*Collection) Find 

func (coll *Collection) Find(ctx context.Context, filter interface{},
	opts ...findopt.Find) (Cursor, error)

Find finds the documents matching a model. A user can supply a custom context to this method.

This method uses TransformDocument to turn the filter parameter into a *bson.Document. See TransformDocument for the list of valid types for filter.

func (*Collection) FindOne 

func (coll *Collection) FindOne(ctx context.Context, filter interface{},
	opts ...findopt.One) *DocumentResult

FindOne returns up to one document that matches the model. A user can supply a custom context to this method, or nil to default to context.Background().

This method uses TransformDocument to turn the filter parameter into a *bson.Document. See TransformDocument for the list of valid types for filter.

func (*Collection) FindOneAndDelete 

func (coll *Collection) FindOneAndDelete(ctx context.Context, filter interface{},
	opts ...findopt.DeleteOne) *DocumentResult

FindOneAndDelete find a single document and deletes it, returning the original in result. The document to return may be nil.

A user can supply a custom context to this method, or nil to default to context.Background().

This method uses TransformDocument to turn the filter parameter into a *bson.Document. See TransformDocument for the list of valid types for filter.

func (*Collection) FindOneAndReplace 

func (coll *Collection) FindOneAndReplace(ctx context.Context, filter interface{},
	replacement interface{}, opts ...findopt.ReplaceOne) *DocumentResult

FindOneAndReplace finds a single document and replaces it, returning either the original or the replaced document. The document to return may be nil.

A user can supply a custom context to this method, or nil to default to context.Background().

This method uses TransformDocument to turn the filter and replacement parameter into a *bson.Document. See TransformDocument for the list of valid types for filter and replacement.

func (*Collection) FindOneAndUpdate 

func (coll *Collection) FindOneAndUpdate(ctx context.Context, filter interface{},
	update interface{}, opts ...findopt.UpdateOne) *DocumentResult

FindOneAndUpdate finds a single document and updates it, returning either the original or the updated. The document to return may be nil.

A user can supply a custom context to this method, or nil to default to context.Background().

This method uses TransformDocument to turn the filter and update parameter into a *bson.Document. See TransformDocument for the list of valid types for filter and update.

func (*Collection) Indexes added in v0.0.3 

func (coll *Collection) Indexes() IndexView

Indexes returns the index view for this collection.

func (*Collection) InsertMany 

func (coll *Collection) InsertMany(ctx context.Context, documents []interface{},
	opts ...insertopt.Many) (*InsertManyResult, error)

InsertMany inserts the provided documents. A user can supply a custom context to this method.

Currently, batching is not implemented for this operation. Because of this, extremely large sets of documents will not fit into a single BSON document to be sent to the server, so the operation will fail.

This method uses TransformDocument to turn the documents parameter into a *bson.Document. See TransformDocument for the list of valid types for documents.

func (*Collection) InsertOne 

func (coll *Collection) InsertOne(ctx context.Context, document interface{},
	opts ...insertopt.One) (*InsertOneResult, error)

InsertOne inserts a single document into the collection. A user can supply a custom context to this method, or nil to default to context.Background().

This method uses TransformDocument to turn the document parameter into a *bson.Document. See TransformDocument for the list of valid types for document.

TODO(skriptble): Determine if we should unwrap the value for the InsertOneResult or just return the bson.Element or a bson.Value.

func (*Collection) Name added in v0.0.4 

func (coll *Collection) Name() string

Name provides access to the name of the collection.

func (*Collection) ReplaceOne 

func (coll *Collection) ReplaceOne(ctx context.Context, filter interface{},
	replacement interface{}, opts ...replaceopt.Replace) (*UpdateResult, error)

ReplaceOne replaces a single document in the collection. A user can supply a custom context to this method, or nil to default to context.Background().

This method uses TransformDocument to turn the filter and replacement parameter into a *bson.Document. See TransformDocument for the list of valid types for filter and replacement.

func (*Collection) UpdateMany 

func (coll *Collection) UpdateMany(ctx context.Context, filter interface{}, update interface{},
	opts ...updateopt.Update) (*UpdateResult, error)

UpdateMany updates multiple documents in the collection. A user can supply a custom context to this method, or nil to default to context.Background().

This method uses TransformDocument to turn the filter and update parameter into a *bson.Document. See TransformDocument for the list of valid types for filter and update.

func (*Collection) UpdateOne 

func (coll *Collection) UpdateOne(ctx context.Context, filter interface{}, update interface{},
	options ...updateopt.Update) (*UpdateResult, error)

UpdateOne updates a single document in the collection. A user can supply a custom context to this method, or nil to default to context.Background().

This method uses TransformDocument to turn the filter and update parameter into a *bson.Document. See TransformDocument for the list of valid types for filter and update.

func (*Collection) Watch added in v0.0.2 

func (coll *Collection) Watch(ctx context.Context, pipeline interface{},
	opts ...changestreamopt.ChangeStream) (Cursor, error)

Watch returns a change stream cursor used to receive notifications of changes to the collection. This method is preferred to running a raw aggregation with a $changeStream stage because it supports resumability in the case of some errors.

type Cursor 

type Cursor interface {

	// Get the ID of the cursor.
	ID() int64

	// Get the next result from the cursor.
	// Returns true if there were no errors and there is a next result.
	Next(context.Context) bool

	Decode(interface{}) error

	DecodeBytes() (bson.Reader, error)

	// Returns the error status of the cursor
	Err() error

	// Close the cursor.
	Close(context.Context) error
}

Cursor instances iterate a stream of documents. Each document is decoded into the result according to the rules of the bson package.

A typical usage of the Cursor interface would be: 

var cur Cursor
ctx := context.Background()
defer cur.Close(ctx)

for cur.Next(ctx) {
	elem := bson.NewDocument()
	if err := cur.Decode(elem); err != nil {
		log.Fatal(err)
	}

	// do something with elem....
}

if err := cur.Err(); err != nil {
	log.Fatal(err)
}

type Database 

type Database struct {
	// contains filtered or unexported fields
}

Database performs operations on a given database.

func (*Database) Client 

func (db *Database) Client() *Client

Client returns the Client the database was created from.

func (*Database) Collection 

func (db *Database) Collection(name string, opts ...collectionopt.Option) *Collection

Collection gets a handle for a given collection in the database.

func (*Database) Drop added in v0.0.4 

func (db *Database) Drop(ctx context.Context, opts ...dbopt.DropDB) error

Drop drops this database from mongodb.

func (*Database) ListCollections added in v0.0.6 

func (db *Database) ListCollections(ctx context.Context, filter *bson.Document, opts ...listcollectionopt.ListCollections) (command.Cursor, error)

ListCollections list collections from mongodb database.

func (*Database) Name 

func (db *Database) Name() string

Name returns the name of the database.

func (*Database) ReadConcern added in v0.0.13 

func (db *Database) ReadConcern() *readconcern.ReadConcern

ReadConcern returns the read concern of this database.

func (*Database) ReadPreference added in v0.0.13 

func (db *Database) ReadPreference() *readpref.ReadPref

ReadPreference returns the read preference of this database.

func (*Database) RunCommand 

func (db *Database) RunCommand(ctx context.Context, runCommand interface{}, opts ...runcmdopt.Option) (bson.Reader, error)

RunCommand runs a command on the database. A user can supply a custom context to this method, or nil to default to context.Background().

func (*Database) WriteConcern added in v0.0.13 

func (db *Database) WriteConcern() *writeconcern.WriteConcern

WriteConcern returns the write concern of this database.

type DatabaseSpecification added in v0.0.3 

type DatabaseSpecification struct {
	Name       string
	SizeOnDisk int64
	Empty      bool
}

DatabaseSpecification is the information for a single database returned from a ListDatabases operation.

type DeleteResult 

type DeleteResult struct {
	// The number of documents that were deleted.
	DeletedCount int64 `bson:"n"`
}

DeleteResult is a result of an DeleteOne operation.

type Dialer added in v0.0.3 

type Dialer interface {
	DialContext(ctx context.Context, network, address string) (net.Conn, error)
}

Dialer is used to make network connections.

type DocumentResult 

type DocumentResult struct {
	// contains filtered or unexported fields
}

DocumentResult represents a single document returned from an operation. If the operation returned an error, the Err method of DocumentResult will return that error.

func (*DocumentResult) Decode 

func (dr *DocumentResult) Decode(v interface{}) error

Decode will attempt to decode the first document into v. If there was an error from the operation that created this DocumentResult then the error will be returned. If there were no returned documents, ErrNoDocuments is returned.

type IndexModel added in v0.0.3 

type IndexModel struct {
	Keys    *bson.Document
	Options *bson.Document
}

IndexModel contains information about an index.

type IndexOptionsBuilder added in v0.0.7 

type IndexOptionsBuilder struct {
	// contains filtered or unexported fields
}

IndexOptionsBuilder constructs a BSON document for index options

func NewIndexOptionsBuilder added in v0.0.7 

func NewIndexOptionsBuilder() *IndexOptionsBuilder

NewIndexOptionsBuilder creates a new instance of IndexOptionsBuilder

func (*IndexOptionsBuilder) Background added in v0.0.7 

func (iob *IndexOptionsBuilder) Background(background bool) *IndexOptionsBuilder

Background sets the background option

func (*IndexOptionsBuilder) Bits added in v0.0.7 

func (iob *IndexOptionsBuilder) Bits(bits int32) *IndexOptionsBuilder

Bits sets the bits option

func (*IndexOptionsBuilder) BucketSize added in v0.0.7 

func (iob *IndexOptionsBuilder) BucketSize(bucketSize int32) *IndexOptionsBuilder

BucketSize sets the bucketSize option

func (*IndexOptionsBuilder) Build added in v0.0.7 

func (iob *IndexOptionsBuilder) Build() *bson.Document

Build returns the BSON document from the builder

func (*IndexOptionsBuilder) Collation added in v0.0.7 

func (iob *IndexOptionsBuilder) Collation(collation *bson.Document) *IndexOptionsBuilder

Collation sets the collation option

func (*IndexOptionsBuilder) DefaultLanguage added in v0.0.7 

func (iob *IndexOptionsBuilder) DefaultLanguage(defaultLanguage string) *IndexOptionsBuilder

DefaultLanguage sets the defaultLanguage option

func (*IndexOptionsBuilder) ExpireAfterSeconds added in v0.0.7 

func (iob *IndexOptionsBuilder) ExpireAfterSeconds(expireAfterSeconds int32) *IndexOptionsBuilder

ExpireAfterSeconds sets the expireAfterSeconds option

func (*IndexOptionsBuilder) LanguageOverride added in v0.0.7 

func (iob *IndexOptionsBuilder) LanguageOverride(languageOverride string) *IndexOptionsBuilder

LanguageOverride sets the languageOverride option

func (*IndexOptionsBuilder) Max added in v0.0.7 

func (iob *IndexOptionsBuilder) Max(max float64) *IndexOptionsBuilder

Max sets the max option

func (*IndexOptionsBuilder) Min added in v0.0.7 

func (iob *IndexOptionsBuilder) Min(min float64) *IndexOptionsBuilder

Min sets the min option

func (*IndexOptionsBuilder) Name added in v0.0.7 

func (iob *IndexOptionsBuilder) Name(name string) *IndexOptionsBuilder

Name sets the name option

func (*IndexOptionsBuilder) PartialFilterExpression added in v0.0.7 

func (iob *IndexOptionsBuilder) PartialFilterExpression(partialFilterExpression *bson.Document) *IndexOptionsBuilder

PartialFilterExpression sets the partialFilterExpression option

func (*IndexOptionsBuilder) Sparse added in v0.0.7 

func (iob *IndexOptionsBuilder) Sparse(sparse bool) *IndexOptionsBuilder

Sparse sets the sparse option

func (*IndexOptionsBuilder) SphereVersion added in v0.0.7 

func (iob *IndexOptionsBuilder) SphereVersion(sphereVersion int32) *IndexOptionsBuilder

SphereVersion sets the sphereVersion option

func (*IndexOptionsBuilder) StorageEngine added in v0.0.7 

func (iob *IndexOptionsBuilder) StorageEngine(storageEngine *bson.Document) *IndexOptionsBuilder

StorageEngine sets the storageEngine option

func (*IndexOptionsBuilder) TextVersion added in v0.0.7 

func (iob *IndexOptionsBuilder) TextVersion(textVersion int32) *IndexOptionsBuilder

TextVersion sets the textVersion option

func (*IndexOptionsBuilder) Unique added in v0.0.7 

func (iob *IndexOptionsBuilder) Unique(unique bool) *IndexOptionsBuilder

Unique sets the unique option

func (*IndexOptionsBuilder) Version added in v0.0.7 

func (iob *IndexOptionsBuilder) Version(version int32) *IndexOptionsBuilder

Version sets the version option

func (*IndexOptionsBuilder) Weights added in v0.0.7 

func (iob *IndexOptionsBuilder) Weights(weights *bson.Document) *IndexOptionsBuilder

Weights sets the weights option

type IndexView added in v0.0.3 

type IndexView struct {
	// contains filtered or unexported fields
}

IndexView is used to create, drop, and list indexes on a given collection.

func (IndexView) CreateMany added in v0.0.3 

func (iv IndexView) CreateMany(ctx context.Context, models []IndexModel, opts ...indexopt.Create) ([]string, error)

CreateMany creates multiple indexes in the collection specified by the models. The names of the creates indexes are returned.

func (IndexView) CreateOne added in v0.0.3 

func (iv IndexView) CreateOne(ctx context.Context, model IndexModel, opts ...indexopt.Create) (string, error)

CreateOne creates a single index in the collection specified by the model.

func (IndexView) DropAll added in v0.0.3 

func (iv IndexView) DropAll(ctx context.Context, opts ...indexopt.Drop) (bson.Reader, error)

DropAll drops all indexes in the collection.

func (IndexView) DropOne added in v0.0.3 

func (iv IndexView) DropOne(ctx context.Context, name string, opts ...indexopt.Drop) (bson.Reader, error)

DropOne drops the index with the given name from the collection.

func (IndexView) List added in v0.0.3 

func (iv IndexView) List(ctx context.Context, opts ...indexopt.List) (Cursor, error)

List returns a cursor iterating over all the indexes in the collection.

type InsertManyResult 

type InsertManyResult struct {
	// Maps the indexes of inserted documents to their _id fields.
	InsertedIDs []interface{}
}

InsertManyResult is a result of an InsertMany operation.

type InsertOneResult 

type InsertOneResult struct {
	// The identifier that was inserted.
	InsertedID interface{}
}

InsertOneResult is a result of an InsertOne operation.

InsertedID will be a Go type that corresponds to a BSON type.

type ListDatabasesResult added in v0.0.3 

type ListDatabasesResult struct {
	Databases []DatabaseSpecification
	TotalSize int64
}

ListDatabasesResult is a result of a ListDatabases operation. Each specification is a description of the datbases on the server.

type MarshalError added in v0.0.15 

type MarshalError struct {
	Value interface{}
	Err   error
}

MarshalError is returned when attempting to transform a value into a document results in an error.

func (MarshalError) Error added in v0.0.15 

func (me MarshalError) Error() string

Error implements the error interface.

type Session added in v0.0.10 

type Session struct {
	aggregateopt.AggregateSessionOpt
	changestreamopt.ChangeStreamSessionOpt
	countopt.CountSessionOpt
	deleteopt.DeleteSessionOpt
	distinctopt.DistinctSessionOpt
	dbopt.DropDBSessionOpt
	findopt.FindSessionOpt
	dropcollopt.DropCollSessionOpt
	listcollectionopt.ListCollectionsSessionOpt
	updateopt.UpdateSessionOpt
	replaceopt.ReplaceSessionOpt
	indexopt.IndexSessionOpt
	insertopt.InsertSessionOpt
	runcmdopt.RunCmdSessionOpt
	listdbopt.ListDatabasesSessionOpt
	*session.Client
	// contains filtered or unexported fields
}

Session represents a set of sequential operations executed by an application that are related in some way.

func (*Session) AbortTransaction added in v0.0.12 

func (s *Session) AbortTransaction(ctx context.Context) error

AbortTransaction aborts the session's transaction, returning any errors and error codes

func (*Session) CommitTransaction added in v0.0.12 

func (s *Session) CommitTransaction(ctx context.Context) error

CommitTransaction commits the sesson's transaction.

func (*Session) ConvertAggregateSession added in v0.0.10 

func (s *Session) ConvertAggregateSession() *session.Client

ConvertAggregateSession implements the AggregateSession interface.

func (*Session) ConvertChangeStreamSession added in v0.0.10 

func (s *Session) ConvertChangeStreamSession() *session.Client

ConvertChangeStreamSession implements the ChangeStreamSession interface.

func (*Session) ConvertCountSession added in v0.0.10 

func (s *Session) ConvertCountSession() *session.Client

ConvertCountSession implements the CountSession interface.

func (*Session) ConvertDeleteOneSession added in v0.0.10 

func (s *Session) ConvertDeleteOneSession() *session.Client

ConvertDeleteOneSession implements the DeleteOneSession interface.

func (*Session) ConvertDeleteSession added in v0.0.10 

func (s *Session) ConvertDeleteSession() *session.Client

ConvertDeleteSession implements the DeleteSession interface.

func (*Session) ConvertDistinctSession added in v0.0.10 

func (s *Session) ConvertDistinctSession() *session.Client

ConvertDistinctSession implements the DistinctSession interface.

func (*Session) ConvertDropCollSession added in v0.0.10 

func (s *Session) ConvertDropCollSession() *session.Client

ConvertDropCollSession implements the DropCollSession interface

func (*Session) ConvertDropDBSession added in v0.0.10 

func (s *Session) ConvertDropDBSession() *session.Client

ConvertDropDBSession implements the DropDBSession interface.

func (*Session) ConvertFindOneSession added in v0.0.10 

func (s *Session) ConvertFindOneSession() *session.Client

ConvertFindOneSession implements the FindOneSession interface.

func (*Session) ConvertFindSession added in v0.0.10 

func (s *Session) ConvertFindSession() *session.Client

ConvertFindSession implements the FindSession interface.

func (*Session) ConvertIndexSession added in v0.0.10 

func (s *Session) ConvertIndexSession() *session.Client

ConvertIndexSession implements the IndexSession interface.

func (*Session) ConvertInsertSession added in v0.0.10 

func (s *Session) ConvertInsertSession() *session.Client

ConvertInsertSession implements the InsertManySession and InsertOneSession interfaces.

func (*Session) ConvertListCollectionsSession added in v0.0.10 

func (s *Session) ConvertListCollectionsSession() *session.Client

ConvertListCollectionsSession implements the ListCollectionsSession interface.

func (*Session) ConvertListDatabasesSession added in v0.0.10 

func (s *Session) ConvertListDatabasesSession() *session.Client

ConvertListDatabasesSession implements the ListDatabasesSession interface

func (*Session) ConvertReplaceOneSession added in v0.0.10 

func (s *Session) ConvertReplaceOneSession() *session.Client

ConvertReplaceOneSession implements the ReplaceOneSession interface.

func (*Session) ConvertReplaceSession added in v0.0.10 

func (s *Session) ConvertReplaceSession() *session.Client

ConvertReplaceSession implements the ReplaceSession interface.

func (*Session) ConvertRunCmdSession added in v0.0.12 

func (s *Session) ConvertRunCmdSession() *session.Client

ConvertRunCmdSession implements the RunCmdSession interface.

func (*Session) ConvertUpdateOneSession added in v0.0.10 

func (s *Session) ConvertUpdateOneSession() *session.Client

ConvertUpdateOneSession implements the UpdateOneSession interface.

func (*Session) ConvertUpdateSession added in v0.0.10 

func (s *Session) ConvertUpdateSession() *session.Client

ConvertUpdateSession implements the UpdateSession interface.

func (*Session) EndSession added in v0.0.12 

func (s *Session) EndSession(ctx context.Context)

EndSession ends the session.

func (*Session) StartTransaction added in v0.0.12 

func (s *Session) StartTransaction(opts ...transactionopt.Transaction) error

StartTransaction starts a transaction for this session.

type UpdateResult 

type UpdateResult struct {
	// The number of documents that matched the filter.
	MatchedCount int64
	// The number of documents that were modified.
	ModifiedCount int64
	// The identifier of the inserted document if an upsert took place.
	UpsertedID interface{}
}

UpdateResult is a result of an update operation.

UpsertedID will be a Go type that corresponds to a BSON type.

func (*UpdateResult) UnmarshalBSON 

func (result *UpdateResult) UnmarshalBSON(b []byte) error

UnmarshalBSON implements the bson.Unmarshaler interface.

type WriteConcernError added in v0.0.4 

type WriteConcernError struct {
	Code    int
	Message string
	Details bson.Reader
}

WriteConcernError is a write concern failure that occurred as a result of a write operation.

func (WriteConcernError) Error added in v0.0.4 

func (wce WriteConcernError) Error() string

type WriteError added in v0.0.4 

type WriteError struct {
	Index   int
	Code    int
	Message string
}

WriteError is a non-write concern failure that occurred as a result of a write operation.

func (WriteError) Error added in v0.0.4 

func (we WriteError) Error() string

type WriteErrors added in v0.0.4 

type WriteErrors []WriteError

WriteErrors is a group of non-write concern failures that occurred as a result of a write operation.

func (WriteErrors) Error added in v0.0.4 

func (we WriteErrors) Error() string

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