![]() New connection when the pool is not full and all existing connection are in use. Idle connection from the pool (including potential liveness checks) or create a The maximum amount of time in seconds the driver will wait to either acquire an Larger than update_routing_table_timeout,Ĭonnection_acquisition_timeout, and connection_timeout. Since this process may involve updating the routing table, acquiring aĬonnection from the pool, or establishing a new connection, it should be chosen If necessary, updating the routing table, fetching a connection from the pool,Īnd, if necessary fully establishing a new connection with the reader/writer. This encompasses everything that needs to happen for this, including, The maximum amount of time in seconds the session will wait when trying toĮstablish a usable read/write connection to the remote host. Driver Configuration ¶Īdditional configuration can be provided via the neo4j.Driver constructor. **config is experimental may change in the future. Note: Even if this method throws an exception, the driver still need to be closed via close() to free up all resources. Use the exception to further understand the cause of the connectivity problem. This verifies if the driver can connect to a remote server or a clusterīy establishing a network connection with the remote and possibly exchangingĪ few data before closing the connection. Shut down, closing any open connections in the pool. session ( ** config ) ¶Ĭreate a session, see Session Construction Parameters :Ĭonfig – session configuration key-word arguments, see Session Configuration for available key-word arguments. Used as the primary access point to Neo4j. Driver ¶īase class for all types of neo4j.Driver, instances of which are The driver is able to communicate with the database without executing any Neo4j.Driver objects hold a connection pool from which neo4j.Session objects can borrow connections.Ĭlosing a driver will immediately shut down all connections in the pool.ĭriver objects only open connections and pool them as needed. This object holds the details required to establish connections with a Neo4j database, including server URIs, credentials and other configuration. Parameters ( Dict ) – extra key word parameters passed along to theĮvery Neo4j-backed application will require a neo4j.Driver object. Scheme ( str or None) – specifies the type of authentication Principal ( str or None) – specifies who is being authenticatedĬredentials ( str or None) – authenticates the principal custom_auth ( principal, credentials, realm, scheme, ** parameters ) ¶ Parameters :īase64_encoded_token ( str) – a base64 encoded authentication token generated This will set the scheme to “bearer” for the auth token. Generate an auth token for Single-Sign-On providers. Parameters :īase64_encoded_ticket ( str) – a base64 encoded service ticket, this will set This will set the scheme to “kerberos” for the auth token. Generate a kerberos auth token with the base64 encoded ticket. kerberos_auth ( base64_encoded_ticket ) ¶ Realm ( str or None) – specifies the authentication providerĪuth token for use with GraphDatabase.driver() Return type : Password ( str) – current password, this will set the credentials User ( str) – user name, this will set the This will set the scheme to “basic” for the auth token. Generate a basic auth token for a given user and password. basic_auth ( user, password, realm = None ) ¶ Auth ( "basic", "neo4j", "password" ) Auth Token Helper Functions ¶Īlternatively, one of the auth token helper functions can be used.
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