Join us Sept 17 at .local NYC! Use code WEB50 to save 50% on tickets. Learn more >
MongoDB Event
Menu Docs
Página inicial do Docs
/
Idiomas
/
Ruby
/
Ruby Driver
/
Conecte

Especificar opções de conexão

Visão geral

Esta seção descreve as opções de conexão e autenticação do MongoDB disponíveis no driver Ruby. Você pode configurar sua conexão usando o URI de conexão (também chamada de string de conexão) ou passando argumentos para o construtor Mongo::Client.

Como utilizar o URI de conexão

Se você passar um URI de conexão para o construtor Mongo::Client, poderá incluir opções de conexão na cadeia de caracteres como pares <name>=<value>. No exemplo a seguir, o URI de conexão contém a opção connectTimeoutMS com um valor de 60000 e a opção tls com um valor de true:

uri = "mongodb://<hostname>:<port>/?connectTimeoutMS=60000&tls=true"
client = Mongo::Client.new(uri)

Usando um Mongo::Client

Você pode passar as opções de conexão como argumentos para o construtor Mongo::Client em vez de incluí-las em seu URI de conexão. Ao configurar sua conexão dessa forma, é mais fácil para você alterar as configurações no tempo de execução e detectar erros durante a compilação. O exemplo seguinte mostra como utilizar o construtor Mongo::Client para configurar opções de conexão:

uri = "mongodb://<hostname>:<port>"
client = Mongo::Client.new(uri, connect_timeout: 60000, ssl: true)

Opções de conexão

As seções a seguir descrevem as opções de conexão disponíveis no driver Ruby.

Compactação de rede

Opção de conexão
Descrição

:compressors

A list of potential compressors to use, in order of preference. The driver chooses the first compressor that is also supported by the server. Currently the driver only supports zstd, snappy, and zlib.

Data Type: Array<String>
Default: none
Client Example: compressors: ['snappy', 'zstd', 'zlib']
Connection URI Example: compressors=snappy,zstd,zlib

:zlib_compression_level

The Zlib compression level to use, if using compression. This option accepts an integer value between -1 and 9:

- -1: zlib uses its default compression level (usually 6).
- 0: No compression.
- 1: Fastest speed but lowest compression.
- 9: Best compression but slowest speed.

For more information, see Ruby's ZLib module documentation.

Data Type: Integer
Default: None
Client Example: zlib_compression_level: 3
Connection URI Example: zlibCompressionLevel=3

Tempo limite

Opção de conexão
Descrição

:connect_timeout

The number of seconds to wait to establish a socket connection before raising an exception. This timeout is also used for SRV DNS record resolution.

nil and 0 mean no timeout. Client creation will fail with an error if an invalid timeout value is passed (such as a negative value or a non-numeric value).

Data Type: Float
Default: 10.0
Client Example: connect_timeout: 10.0
Connection URI Example: connectTimeoutMS=10000

:timeout_ms

The number of milliseconds to wait for an operation to execute before raising an exception.

0 means no timeout. Client creation will fail with an error if an invalid timeout value is passed (such as a negative value or a non-numeric value).

Data Type: Integer
Default: none
Client Example: timeout_ms: 5000
Connection URI Example: timeoutMS=5000

Seleção do Servidor

Opção de conexão
Descrição

:server_selector

Get the server selector. It either uses the read preference defined in the client options or defaults to a Primary server selector.

For more information on read preference modes, see the Server Selection Algorithm documentation in the MongoDB Server manual.

Data Type: ServerSelector
Default: none
Client Example: server_selector: { mode: :secondary_preferred }
Connection URI Example: N/A

:server_selection_timeout

The maximum amount of time, in seconds, the driver waits for server selection to succeed before throwing an exception.

Data Type: Integer
Default: 30
Client Example: server_selection_timeout: 30
Connection URI Example: serverSelectionTimeoutMS=30000

Autenticação

Opção de conexão
Descrição

:auth_mech

The mechanism that the Ruby driver uses to authenticate the application.

Data Type: Symbol
Default: :scram256
nil if user credentials are not supplied.
Client Example: auth_mech: :scram256
Connection URI Example: authMechanism=SCRAM-SHA-256

:auth_mech_properties

Options specific to the authentication mechanism. This option isn't needed for all authentication mechanisms.

Data Type: Hash
Default: When you use the GSSAPI authentication mechanism,
the default properties are {service_name: "mongodb"}.
Otherwise, the default is nil.
Client Example: auth_mech_properties: {aws_session_token: '12345'}
Connection URI Example: authMechanismProperties=AWS_SESSION_TOKEN:12345

:auth_source

The database to authenticate against.

Data Type: String
Default: admin, if credentials are supplied
Client Example: auth_source: admin
Connection URI Example: authSource=admin

: user

The username for authentication. When this option is included in a connection URI, you must percent-encode it.

Data Type: String
Default: none
Client Example: user: my+user
Connection URI Example: username=my+user

:password

The password for authentication. When this option is included in a connection URI, you must percent-encode it.

Data Type: String
Default: none
Client Example: password: strong+password
Connection URI Example: password=strong+password

Operações de leitura e escrita

Opção de conexão
Descrição

:replica_set

Specifies the name of the replica set to connect to.

Data Type: String
Default: none
Client Example: replica_set: 'myRS'
Connection URI Example: replicaSet=myRS

:direct_connection

Whether to connect directly to the specified host

Data Type: Boolean
Default: false
Client Example: direct_connection: true
Connection URI Example: directConnection=true

:read

The read preference options. For more information, see Read Preference in the MongoDB Server manual.

Data Type: Hash
Default: { mode: :primary }
Client Example: read: { mode: :primary }
Connection URI Example: readPreference=primary

:read_concern

Specifies the read concern options. For more information, see Read Concern in the MongoDB Server manual.

Data Type: Hash
Default: none
Client Example: read: { level: :majority }
Connection URI Example: readConcern=majority

:write_concern

Specifies the client's write concern. For more information, see Write Concern in the MongoDB Server manual.

Data Type: Hash
Default: write_concern: { w: 1 }
Client Example: write_concern: { w: 2 }
Connection URI Example: w=2

:local_threshold

The latency window, in seconds, for a replica-set member's eligibility. If a member's round trip ping takes longer than the fastest server's round-trip ping time plus this value, the server isn't eligible for selection.

Data Type: Float
Default: 0.015
Client Example: local_threshold: 0.020
Connection URI Example: localThresholdMS=20

Documentação da API

Para obter mais informações sobre as opções de Mongo::Client para o driver Ruby, consulte a documentação da API do Mongo::Client.

Voltar

Escolha um destino de conexão

Próximo

Configurar TLS

Nesta página