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Parent client for calling the Cloud Spanner API.
This is the base from which all interactions with the API occur.
In the hierarchy of API concepts
Classes
Client
Client(project=None, credentials=None, client_info=<google.api_core.gapic_v1.client_info.ClientInfo object>, client_options=None, query_options=None, route_to_leader_enabled=False)
Client for interacting with Cloud Spanner API.
Parameters | |
---|---|
Name | Description |
project |
(Optional) The ID of the project which owns the instances, tables and data. If not provided, will attempt to determine from the environment. |
credentials |
(Optional) The authorization credentials to attach to requests. These credentials identify this application to the service. If none are specified, the client will attempt to ascertain the credentials from the environment. |
client_info |
(Optional) The client info used to send a user-agent string along with API requests. If |
client_options |
(Optional) Client options used to set user options on the client. API Endpoint should be set through client_options. |
query_options |
QueryOptions or
(Optional) Query optimizer configuration to use for the given query. If a dict is provided, it must be of the same form as the protobuf message QueryOptions |
route_to_leader_enabled |
boolean
(Optional) Default False. Set route_to_leader_enabled as True to enable leader aware routing. Enabling leader aware routing would route all requests in RW/PDML transactions to the leader region. |
Exceptions | |
---|---|
Type | Description |
`ValueErro |