Google Cloud Spanner v1 API - Class SpannerClient (4.4.0)

public abstract class SpannerClient

Reference documentation and code samples for the Google Cloud Spanner v1 API class SpannerClient.

Spanner client wrapper, for convenient use.

Inheritance

object > SpannerClient

Inherited Members

object.GetHashCode()

object.GetType()

object.MemberwiseClone()

object.ToString()

Derived Types

SpannerClientImpl

Namespace

GoogleGoogle.CloudGoogle.Cloud.SpannerV1

Assembly

Google.Cloud.Spanner.V1.dll

Remarks

Cloud Spanner API

The Cloud Spanner API can be used to manage sessions and execute transactions on data stored in Cloud Spanner databases.

Properties

DefaultEndpoint

public static string DefaultEndpoint { get; }

The default endpoint for the Spanner service, which is a host of "spanner.googleapis.com" and a port of 443.

Property Value

Type	Description
`string`

DefaultScopes

public static IReadOnlyList<string> DefaultScopes { get; }

The default Spanner scopes.

Property Value

Type	Description
`IReadOnlyListstring`

Remarks

The default Spanner scopes are:

GrpcClient

public virtual Spanner.SpannerClient GrpcClient { get; }

The underlying gRPC Spanner client

Property Value

Type	Description
`SpannerSpannerClient`

ServiceMetadata

public static ServiceMetadata ServiceMetadata { get; }

The service metadata associated with this client type.

Property Value

Type	Description
`ServiceMetadata`

Settings

public virtual SpannerSettings Settings { get; protected set; }

Returns the effective CallSettings used for each API call. This can be used to create a modified instance of CallSettings to pass for a single API request.

Property Value

Type	Description
`SpannerSettings`

Methods

BatchCreateSessions(DatabaseName, int, CallSettings)

public virtual BatchCreateSessionsResponse BatchCreateSessions(DatabaseName database, int sessionCount, CallSettings callSettings = null)

Creates multiple new sessions.

This API can be used to initialize a session cache on the clients. See https://goo.gl/TgSFN2 for best practices on session cache management.

Parameters

Name	Description
`database`	`DatabaseName` Required. The database in which the new sessions are created.
`sessionCount`	`int` Required. The number of sessions to be created in this batch call. The API may return fewer than the requested number of sessions. If a specific number of sessions are desired, the client can make additional calls to BatchCreateSessions (adjusting [session_count][google.spanner.v1.BatchCreateSessionsRequest.session_count] as necessary).
`callSettings`	`CallSettings` If not null, applies overrides to this RPC call.

Returns

Type	Description
`BatchCreateSessionsResponse`	The RPC response.

Example

// Create client
SpannerClient spannerClient = SpannerClient.Create();
// Initialize request argument(s)
DatabaseName database = DatabaseName.FromProjectInstanceDatabase("[PROJECT]", "[INSTANCE]", "[DATABASE]");
int sessionCount = 0;
// Make the request
BatchCreateSessionsResponse response = spannerClient.BatchCreateSessions(database, sessionCount);

BatchCreateSessions(BatchCreateSessionsRequest, CallSettings)

public virtual BatchCreateSessionsResponse BatchCreateSessions(BatchCreateSessionsRequest request, CallSettings callSettings = null)

Creates multiple new sessions.

This API can be used to initialize a session cache on the clients. See https://goo.gl/TgSFN2 for best practices on session cache management.

Parameters

Name	Description
`request`	`BatchCreateSessionsRequest` The request object containing all of the parameters for the API call.
`callSettings`	`CallSettings` If not null, applies overrides to this RPC call.

Returns

Type	Description
`BatchCreateSessionsResponse`	The RPC response.

Example

// Create client
SpannerClient spannerClient = SpannerClient.Create();
// Initialize request argument(s)
BatchCreateSessionsRequest request = new BatchCreateSessionsRequest
{
    DatabaseAsDatabaseName = DatabaseName.FromProjectInstanceDatabase("[PROJECT]", "[INSTANCE]", "[DATABASE]"),
    SessionTemplate = new Session(),
    SessionCount = 0,
};
// Make the request
BatchCreateSessionsResponse response = spannerClient.BatchCreateSessions(request);

BatchCreateSessions(string, int, CallSettings)

public virtual BatchCreateSessionsResponse BatchCreateSessions(string database, int sessionCount, CallSettings callSettings = null)

Creates multiple new sessions.

This API can be used to initialize a session cache on the clients. See https://goo.gl/TgSFN2 for best practices on session cache management.

Parameters

Name	Description
`database`	`string` Required. The database in which the new sessions are created.
`sessionCount`	`int` Required. The number of sessions to be created in this batch call. The API may return fewer than the requested number of sessions. If a specific number of sessions are desired, the client can make additional calls to BatchCreateSessions (adjusting [session_count][google.spanner.v1.BatchCreateSessionsRequest.session_count] as necessary).
`callSettings`	`CallSettings` If not null, applies overrides to this RPC call.

Returns

Type	Description
`BatchCreateSessionsResponse`	The RPC response.

Example

// Create client
SpannerClient spannerClient = SpannerClient.Create();
// Initialize request argument(s)
string database = "projects/[PROJECT]/instances/[INSTANCE]/databases/[DATABASE]";
int sessionCount = 0;
// Make the request
BatchCreateSessionsResponse response = spannerClient.BatchCreateSessions(database, sessionCount);

BatchCreateSessionsAsync(DatabaseName, int, CallSettings)

public virtual Task<BatchCreateSessionsResponse> BatchCreateSessionsAsync(DatabaseName database, int sessionCount, CallSettings callSettings = null)

Creates multiple new sessions.

This API can be used to initialize a session cache on the clients. See https://goo.gl/TgSFN2 for best practices on session cache management.

Parameters

Name	Description
`database`	`DatabaseName` Required. The database in which the new sessions are created.
`sessionCount`	`int` Required. The number of sessions to be created in this batch call. The API may return fewer than the requested number of sessions. If a specific number of sessions are desired, the client can make additional calls to BatchCreateSessions (adjusting [session_count][google.spanner.v1.BatchCreateSessionsRequest.session_count] as necessary).
`callSettings`	`CallSettings` If not null, applies overrides to this RPC call.

Returns

Type	Description
`TaskBatchCreateSessionsResponse`	A Task containing the RPC response.

Example

// Create client
SpannerClient spannerClient = await SpannerClient.CreateAsync();
// Initialize request argument(s)
DatabaseName database = DatabaseName.FromProjectInstanceDatabase("[PROJECT]", "[INSTANCE]", "[DATABASE]");
int sessionCount = 0;
// Make the request
BatchCreateSessionsResponse response = await spannerClient.BatchCreateSessionsAsync(database, sessionCount);

BatchCreateSessionsAsync(DatabaseName, int, CancellationToken)

public virtual Task<BatchCreateSessionsResponse> BatchCreateSessionsAsync(DatabaseName database, int sessionCount, CancellationToken cancellationToken)

Creates multiple new sessions.

This API can be used to initialize a session cache on the clients. See https://goo.gl/TgSFN2 for best practices on session cache management.

Parameters

Name	Description
`database`	`DatabaseName` Required. The database in which the new sessions are created.
`sessionCount`	`int` Required. The number of sessions to be created in this batch call. The API may return fewer than the requested number of sessions. If a specific number of sessions are desired, the client can make additional calls to BatchCreateSessions (adjusting [session_count][google.spanner.v1.BatchCreateSessionsRequest.session_count] as necessary).
`cancellationToken`	`CancellationToken` A CancellationToken to use for this RPC.

Returns

Type	Description
`TaskBatchCreateSessionsResponse`	A Task containing the RPC response.

Example

// Create client
SpannerClient spannerClient = await SpannerClient.CreateAsync();
// Initialize request argument(s)
DatabaseName database = DatabaseName.FromProjectInstanceDatabase("[PROJECT]", "[INSTANCE]", "[DATABASE]");
int sessionCount = 0;
// Make the request
BatchCreateSessionsResponse response = await spannerClient.BatchCreateSessionsAsync(database, sessionCount);

BatchCreateSessionsAsync(BatchCreateSessionsRequest, CallSettings)

public virtual Task<BatchCreateSessionsResponse> BatchCreateSessionsAsync(BatchCreateSessionsRequest request, CallSettings callSettings = null)

Creates multiple new sessions.

This API can be used to initialize a session cache on the clients. See https://goo.gl/TgSFN2 for best practices on session cache management.

Parameters

Name	Description
`request`	`BatchCreateSessionsRequest` The request object containing all of the parameters for the API call.
`callSettings`	`CallSettings` If not null, applies overrides to this RPC call.

Returns

Type	Description
`TaskBatchCreateSessionsResponse`	A Task containing the RPC response.

Example

// Create client
SpannerClient spannerClient = await SpannerClient.CreateAsync();
// Initialize request argument(s)
BatchCreateSessionsRequest request = new BatchCreateSessionsRequest
{
    DatabaseAsDatabaseName = DatabaseName.FromProjectInstanceDatabase("[PROJECT]", "[INSTANCE]", "[DATABASE]"),
    SessionTemplate = new Session(),
    SessionCount = 0,
};
// Make the request
BatchCreateSessionsResponse response = await spannerClient.BatchCreateSessionsAsync(request);

BatchCreateSessionsAsync(BatchCreateSessionsRequest, CancellationToken)

public virtual Task<BatchCreateSessionsResponse> BatchCreateSessionsAsync(BatchCreateSessionsRequest request, CancellationToken cancellationToken)

Creates multiple new sessions.

This API can be used to initialize a session cache on the clients. See https://goo.gl/TgSFN2 for best practices on session cache management.

Parameters

Name	Description
`request`	`BatchCreateSessionsRequest` The request object containing all of the parameters for the API call.
`cancellationToken`	`CancellationToken` A CancellationToken to use for this RPC.

Returns

Type	Description
`TaskBatchCreateSessionsResponse`	A Task containing the RPC response.

Example

// Create client
SpannerClient spannerClient = await SpannerClient.CreateAsync();
// Initialize request argument(s)
BatchCreateSessionsRequest request = new BatchCreateSessionsRequest
{
    DatabaseAsDatabaseName = DatabaseName.FromProjectInstanceDatabase("[PROJECT]", "[INSTANCE]", "[DATABASE]"),
    SessionTemplate = new Session(),
    SessionCount = 0,
};
// Make the request
BatchCreateSessionsResponse response = await spannerClient.BatchCreateSessionsAsync(request);

BatchCreateSessionsAsync(string, int, CallSettings)

public virtual Task<BatchCreateSessionsResponse> BatchCreateSessionsAsync(string database, int sessionCount, CallSettings callSettings = null)

Creates multiple new sessions.

This API can be used to initialize a session cache on the clients. See https://goo.gl/TgSFN2 for best practices on session cache management.

Parameters

Name	Description
`database`	`string` Required. The database in which the new sessions are created.
`sessionCount`	`int` Required. The number of sessions to be created in this batch call. The API may return fewer than the requested number of sessions. If a specific number of sessions are desired, the client can make additional calls to BatchCreateSessions (adjusting [session_count][google.spanner.v1.BatchCreateSessionsRequest.session_count] as necessary).
`callSettings`	`CallSettings` If not null, applies overrides to this RPC call.

Returns

Type	Description
`TaskBatchCreateSessionsResponse`	A Task containing the RPC response.

Example

// Create client
SpannerClient spannerClient = await SpannerClient.CreateAsync();
// Initialize request argument(s)
string database = "projects/[PROJECT]/instances/[INSTANCE]/databases/[DATABASE]";
int sessionCount = 0;
// Make the request
BatchCreateSessionsResponse response = await spannerClient.BatchCreateSessionsAsync(database, sessionCount);

BatchCreateSessionsAsync(string, int, CancellationToken)

public virtual Task<BatchCreateSessionsResponse> BatchCreateSessionsAsync(string database, int sessionCount, CancellationToken cancellationToken)

Creates multiple new sessions.

This API can be used to initialize a session cache on the clients. See https://goo.gl/TgSFN2 for best practices on session cache management.

Parameters

Name	Description
`database`	`string` Required. The database in which the new sessions are created.
`sessionCount`	`int` Required. The number of sessions to be created in this batch call. The API may return fewer than the requested number of sessions. If a specific number of sessions are desired, the client can make additional calls to BatchCreateSessions (adjusting [session_count][google.spanner.v1.BatchCreateSessionsRequest.session_count] as necessary).
`cancellationToken`	`CancellationToken` A CancellationToken to use for this RPC.

Returns

Type	Description
`TaskBatchCreateSessionsResponse`	A Task containing the RPC response.

Example

// Create client
SpannerClient spannerClient = await SpannerClient.CreateAsync();
// Initialize request argument(s)
string database = "projects/[PROJECT]/instances/[INSTANCE]/databases/[DATABASE]";
int sessionCount = 0;
// Make the request
BatchCreateSessionsResponse response = await spannerClient.BatchCreateSessionsAsync(database, sessionCount);

BeginTransaction(BeginTransactionRequest, CallSettings)

public virtual Transaction BeginTransaction(BeginTransactionRequest request, CallSettings callSettings = null)

Begins a new transaction. This step can often be skipped: [Read][google.spanner.v1.Spanner.Read], [ExecuteSql][google.spanner.v1.Spanner.ExecuteSql] and [Commit][google.spanner.v1.Spanner.Commit] can begin a new transaction as a side-effect.

Parameters

Name	Description
`request`	`BeginTransactionRequest` The request object containing all of the parameters for the API call.
`callSettings`	`CallSettings` If not null, applies overrides to this RPC call.

Returns

Type	Description
`Transaction`	The RPC response.

Example

// Create client
SpannerClient spannerClient = SpannerClient.Create();
// Initialize request argument(s)
BeginTransactionRequest request = new BeginTransactionRequest
{
    SessionAsSessionName = SessionName.FromProjectInstanceDatabaseSession("[PROJECT]", "[INSTANCE]", "[DATABASE]", "[SESSION]"),
    Options = new TransactionOptions(),
    RequestOptions = new RequestOptions(),
};
// Make the request
Transaction response = spannerClient.BeginTransaction(request);

BeginTransaction(SessionName, TransactionOptions, CallSettings)

public virtual Transaction BeginTransaction(SessionName session, TransactionOptions options, CallSettings callSettings = null)

Parameters

Name	Description
`session`	`SessionName` Required. The session in which the transaction runs.
`options`	`TransactionOptions` Required. Options for the new transaction.
`callSettings`	`CallSettings` If not null, applies overrides to this RPC call.

Returns

Type	Description
`Transaction`	The RPC response.

Example

// Create client
SpannerClient spannerClient = SpannerClient.Create();
// Initialize request argument(s)
SessionName session = SessionName.FromProjectInstanceDatabaseSession("[PROJECT]", "[INSTANCE]", "[DATABASE]", "[SESSION]");
TransactionOptions options = new TransactionOptions();
// Make the request
Transaction response = spannerClient.BeginTransaction(session, options);

BeginTransaction(string, TransactionOptions, CallSettings)

public virtual Transaction BeginTransaction(string session, TransactionOptions options, CallSettings callSettings = null)

Parameters

Name	Description
`session`	`string` Required. The session in which the transaction runs.
`options`	`TransactionOptions` Required. Options for the new transaction.
`callSettings`	`CallSettings` If not null, applies overrides to this RPC call.

Returns

Type	Description
`Transaction`	The RPC response.

Example

// Create client
SpannerClient spannerClient = SpannerClient.Create();
// Initialize request argument(s)
string session = "projects/[PROJECT]/instances/[INSTANCE]/databases/[DATABASE]/sessions/[SESSION]";
TransactionOptions options = new TransactionOptions();
// Make the request
Transaction response = spannerClient.BeginTransaction(session, options);

BeginTransactionAsync(BeginTransactionRequest, CallSettings)

public virtual Task<Transaction> BeginTransactionAsync(BeginTransactionRequest request, CallSettings callSettings = null)

Parameters

Name	Description
`request`	`BeginTransactionRequest` The request object containing all of the parameters for the API call.
`callSettings`	`CallSettings` If not null, applies overrides to this RPC call.

Returns

Type	Description
`TaskTransaction`	A Task containing the RPC response.

Example

// Create client
SpannerClient spannerClient = await SpannerClient.CreateAsync();
// Initialize request argument(s)
BeginTransactionRequest request = new BeginTransactionRequest
{
    SessionAsSessionName = SessionName.FromProjectInstanceDatabaseSession("[PROJECT]", "[INSTANCE]", "[DATABASE]", "[SESSION]"),
    Options = new TransactionOptions(),
    RequestOptions = new RequestOptions(),
};
// Make the request
Transaction response = await spannerClient.BeginTransactionAsync(request);

BeginTransactionAsync(BeginTransactionRequest, CancellationToken)

public virtual Task<Transaction> BeginTransactionAsync(BeginTransactionRequest request, CancellationToken cancellationToken)

Parameters

Name	Description
`request`	`BeginTransactionRequest` The request object containing all of the parameters for the API call.
`cancellationToken`	`CancellationToken` A CancellationToken to use for this RPC.

Returns

Type	Description
`TaskTransaction`	A Task containing the RPC response.

Example

// Create client
SpannerClient spannerClient = await SpannerClient.CreateAsync();
// Initialize request argument(s)
BeginTransactionRequest request = new BeginTransactionRequest
{
    SessionAsSessionName = SessionName.FromProjectInstanceDatabaseSession("[PROJECT]", "[INSTANCE]", "[DATABASE]", "[SESSION]"),
    Options = new TransactionOptions(),
    RequestOptions = new RequestOptions(),
};
// Make the request
Transaction response = await spannerClient.BeginTransactionAsync(request);

BeginTransactionAsync(SessionName, TransactionOptions, CallSettings)

public virtual Task<Transaction> BeginTransactionAsync(SessionName session, TransactionOptions options, CallSettings callSettings = null)

Parameters

Name	Description
`session`	`SessionName` Required. The session in which the transaction runs.
`options`	`TransactionOptions` Required. Options for the new transaction.
`callSettings`	`CallSettings` If not null, applies overrides to this RPC call.

Returns

Type	Description
`TaskTransaction`	A Task containing the RPC response.

Example

// Create client
SpannerClient spannerClient = await SpannerClient.CreateAsync();
// Initialize request argument(s)
SessionName session = SessionName.FromProjectInstanceDatabaseSession("[PROJECT]", "[INSTANCE]", "[DATABASE]", "[SESSION]");
TransactionOptions options = new TransactionOptions();
// Make the request
Transaction response = await spannerClient.BeginTransactionAsync(session, options);

BeginTransactionAsync(SessionName, TransactionOptions, CancellationToken)

public virtual Task<Transaction> BeginTransactionAsync(SessionName session, TransactionOptions options, CancellationToken cancellationToken)

Parameters

Name	Description
`session`	`SessionName` Required. The session in which the transaction runs.
`options`	`TransactionOptions` Required. Options for the new transaction.
`cancellationToken`	`CancellationToken` A CancellationToken to use for this RPC.

Returns

Type	Description
`TaskTransaction`	A Task containing the RPC response.

Example

// Create client
SpannerClient spannerClient = await SpannerClient.CreateAsync();
// Initialize request argument(s)
SessionName session = SessionName.FromProjectInstanceDatabaseSession("[PROJECT]", "[INSTANCE]", "[DATABASE]", "[SESSION]");
TransactionOptions options = new TransactionOptions();
// Make the request
Transaction response = await spannerClient.BeginTransactionAsync(session, options);

BeginTransactionAsync(string, TransactionOptions, CallSettings)

public virtual Task<Transaction> BeginTransactionAsync(string session, TransactionOptions options, CallSettings callSettings = null)

Parameters

Name	Description
`session`	`string` Required. The session in which the transaction runs.
`options`	`TransactionOptions` Required. Options for the new transaction.
`callSettings`	`CallSettings` If not null, applies overrides to this RPC call.

Returns

Type	Description
`TaskTransaction`	A Task containing the RPC response.

Example

// Create client
SpannerClient spannerClient = await SpannerClient.CreateAsync();
// Initialize request argument(s)
string session = "projects/[PROJECT]/instances/[INSTANCE]/databases/[DATABASE]/sessions/[SESSION]";
TransactionOptions options = new TransactionOptions();
// Make the request
Transaction response = await spannerClient.BeginTransactionAsync(session, options);

BeginTransactionAsync(string, TransactionOptions, CancellationToken)

public virtual Task<Transaction> BeginTransactionAsync(string session, TransactionOptions options, CancellationToken cancellationToken)

Parameters

Name	Description
`session`	`string` Required. The session in which the transaction runs.
`options`	`TransactionOptions` Required. Options for the new transaction.
`cancellationToken`	`CancellationToken` A CancellationToken to use for this RPC.

Returns

Type	Description
`TaskTransaction`	A Task containing the RPC response.

Example

// Create client
SpannerClient spannerClient = await SpannerClient.CreateAsync();
// Initialize request argument(s)
string session = "projects/[PROJECT]/instances/[INSTANCE]/databases/[DATABASE]/sessions/[SESSION]";
TransactionOptions options = new TransactionOptions();
// Make the request
Transaction response = await spannerClient.BeginTransactionAsync(session, options);

Commit(CommitRequest, CallSettings)

public virtual CommitResponse Commit(CommitRequest request, CallSettings callSettings = null)

Commits a transaction. The request includes the mutations to be applied to rows in the database.

Commit might return an ABORTED error. This can occur at any time; commonly, the cause is conflicts with concurrent transactions. However, it can also happen for a variety of other reasons. If Commit returns ABORTED, the caller should re-attempt the transaction from the beginning, re-using the same session.

On very rare occasions, Commit might return UNKNOWN. This can happen, for example, if the client job experiences a 1+ hour networking failure. At that point, Cloud Spanner has lost track of the transaction outcome and we recommend that you perform another read from the database to see the state of things as they are now.

Parameters

Name	Description
`request`	`CommitRequest` The request object containing all of the parameters for the API call.
`callSettings`	`CallSettings` If not null, applies overrides to this RPC call.

Returns

Type	Description
`CommitResponse`	The RPC response.

Example

// Create client
SpannerClient spannerClient = SpannerClient.Create();
// Initialize request argument(s)
CommitRequest request = new CommitRequest
{
    SessionAsSessionName = SessionName.FromProjectInstanceDatabaseSession("[PROJECT]", "[INSTANCE]", "[DATABASE]", "[SESSION]"),
    TransactionId = ByteString.Empty,
    Mutations = { new Mutation(), },
    ReturnCommitStats = false,
    RequestOptions = new RequestOptions(),
};
// Make the request
CommitResponse response = spannerClient.Commit(request);

Commit(SessionName, TransactionOptions, IEnumerable<Mutation>, CallSettings)

public virtual CommitResponse Commit(SessionName session, TransactionOptions singleUseTransaction, IEnumerable<Mutation> mutations, CallSettings callSettings = null)

Commits a transaction. The request includes the mutations to be applied to rows in the database.

Parameters

Name	Description
`session`	`SessionName` Required. The session in which the transaction to be committed is running.
`singleUseTransaction`	`TransactionOptions` Execute mutations in a temporary transaction. Note that unlike commit of a previously-started transaction, commit with a temporary transaction is non-idempotent. That is, if the `CommitRequest` is sent to Cloud Spanner more than once (for instance, due to retries in the application, or in the transport library), it is possible that the mutations are executed more than once. If this is undesirable, use [BeginTransaction][google.spanner.v1.Spanner.BeginTransaction] and [Commit][google.spanner.v1.Spanner.Commit] instead.
`mutations`	`IEnumerableMutation` The mutations to be executed when this transaction commits. All mutations are applied atomically, in the order they appear in this list.
`callSettings`	`CallSettings` If not null, applies overrides to this RPC call.

Returns

Type	Description
`CommitResponse`	The RPC response.

Example

// Create client
SpannerClient spannerClient = SpannerClient.Create();
// Initialize request argument(s)
SessionName session = SessionName.FromProjectInstanceDatabaseSession("[PROJECT]", "[INSTANCE]", "[DATABASE]", "[SESSION]");
TransactionOptions singleUseTransaction = new TransactionOptions();
IEnumerable<Mutation> mutations = new Mutation[] { new Mutation(), };
// Make the request
CommitResponse response = spannerClient.Commit(session, singleUseTransaction, mutations);

Commit(SessionName, ByteString, IEnumerable<Mutation>, CallSettings)

public virtual CommitResponse Commit(SessionName session, ByteString transactionId, IEnumerable<Mutation> mutations, CallSettings callSettings = null)

Commits a transaction. The request includes the mutations to be applied to rows in the database.

Parameters

Name	Description
`session`	`SessionName` Required. The session in which the transaction to be committed is running.
`transactionId`	`ByteString` Commit a previously-started transaction.
`mutations`	`IEnumerableMutation` The mutations to be executed when this transaction commits. All mutations are applied atomically, in the order they appear in this list.
`callSettings`	`CallSettings` If not null, applies overrides to this RPC call.

Returns

Type	Description
`CommitResponse`	The RPC response.

Example

// Create client
SpannerClient spannerClient = SpannerClient.Create();
// Initialize request argument(s)
SessionName session = SessionName.FromProjectInstanceDatabaseSession("[PROJECT]", "[INSTANCE]", "[DATABASE]", "[SESSION]");
ByteString transactionId = ByteString.Empty;
IEnumerable<Mutation> mutations = new Mutation[] { new Mutation(), };
// Make the request
CommitResponse response = spannerClient.Commit(session, transactionId, mutations);

Commit(string, TransactionOptions, IEnumerable<Mutation>, CallSettings)

public virtual CommitResponse Commit(string session, TransactionOptions singleUseTransaction, IEnumerable<Mutation> mutations, CallSettings callSettings = null)

Commits a transaction. The request includes the mutations to be applied to rows in the database.

Parameters

Name	Description
`session`	`string` Required. The session in which the transaction to be committed is running.
`singleUseTransaction`	`TransactionOptions` Execute mutations in a temporary transaction. Note that unlike commit of a previously-started transaction, commit with a temporary transaction is non-idempotent. That is, if the `CommitRequest` is sent to Cloud Spanner more than once (for instance, due to retries in the application, or in the transport library), it is possible that the mutations are executed more than once. If this is undesirable, use [BeginTransaction][google.spanner.v1.Spanner.BeginTransaction] and [Commit][google.spanner.v1.Spanner.Commit] instead.
`mutations`	`IEnumerableMutation` The mutations to be executed when this transaction commits. All mutations are applied atomically, in the order they appear in this list.
`callSettings`	`CallSettings` If not null, applies overrides to this RPC call.

Returns

Type	Description
`CommitResponse`	The RPC response.

Example

// Create client
SpannerClient spannerClient = SpannerClient.Create();
// Initialize request argument(s)
string session = "projects/[PROJECT]/instances/[INSTANCE]/databases/[DATABASE]/sessions/[SESSION]";
TransactionOptions singleUseTransaction = new TransactionOptions();
IEnumerable<Mutation> mutations = new Mutation[] { new Mutation(), };
// Make the request
CommitResponse response = spannerClient.Commit(session, singleUseTransaction, mutations);

Commit(string, ByteString, IEnumerable<Mutation>, CallSettings)

public virtual CommitResponse Commit(string session, ByteString transactionId, IEnumerable<Mutation> mutations, CallSettings callSettings = null)

Commits a transaction. The request includes the mutations to be applied to rows in the database.

Parameters

Name	Description
`session`	`string` Required. The session in which the transaction to be committed is running.
`transactionId`	`ByteString` Commit a previously-started transaction.
`mutations`	`IEnumerableMutation` The mutations to be executed when this transaction commits. All mutations are applied atomically, in the order they appear in this list.
`callSettings`	`CallSettings` If not null, applies overrides to this RPC call.

Returns

Type	Description
`CommitResponse`	The RPC response.

Example

// Create client
SpannerClient spannerClient = SpannerClient.Create();
// Initialize request argument(s)
string session = "projects/[PROJECT]/instances/[INSTANCE]/databases/[DATABASE]/sessions/[SESSION]";
ByteString transactionId = ByteString.Empty;
IEnumerable<Mutation> mutations = new Mutation[] { new Mutation(), };
// Make the request
CommitResponse response = spannerClient.Commit(session, transactionId, mutations);

CommitAsync(CommitRequest, CallSettings)

public virtual Task<CommitResponse> CommitAsync(CommitRequest request, CallSettings callSettings = null)

Commits a transaction. The request includes the mutations to be applied to rows in the database.

Parameters

Name	Description
`request`	`CommitRequest` The request object containing all of the parameters for the API call.
`callSettings`	`CallSettings` If not null, applies overrides to this RPC call.

Returns

Type	Description
`TaskCommitResponse`	A Task containing the RPC response.

Example

// Create client
SpannerClient spannerClient = await SpannerClient.CreateAsync();
// Initialize request argument(s)
CommitRequest request = new CommitRequest
{
    SessionAsSessionName = SessionName.FromProjectInstanceDatabaseSession("[PROJECT]", "[INSTANCE]", "[DATABASE]", "[SESSION]"),
    TransactionId = ByteString.Empty,
    Mutations = { new Mutation(), },
    ReturnCommitStats = false,
    RequestOptions = new RequestOptions(),
};
// Make the request
CommitResponse response = await spannerClient.CommitAsync(request);

CommitAsync(CommitRequest, CancellationToken)

public virtual Task<CommitResponse> CommitAsync(CommitRequest request, CancellationToken cancellationToken)

Commits a transaction. The request includes the mutations to be applied to rows in the database.

Parameters

Name	Description
`request`	`CommitRequest` The request object containing all of the parameters for the API call.
`cancellationToken`	`CancellationToken` A CancellationToken to use for this RPC.

Returns

Type	Description
`TaskCommitResponse`	A Task containing the RPC response.

Example

// Create client
SpannerClient spannerClient = await SpannerClient.CreateAsync();
// Initialize request argument(s)
CommitRequest request = new CommitRequest
{
    SessionAsSessionName = SessionName.FromProjectInstanceDatabaseSession("[PROJECT]", "[INSTANCE]", "[DATABASE]", "[SESSION]"),
    TransactionId = ByteString.Empty,
    Mutations = { new Mutation(), },
    ReturnCommitStats = false,
    RequestOptions = new RequestOptions(),
};
// Make the request
CommitResponse response = await spannerClient.CommitAsync(request);

CommitAsync(SessionName, TransactionOptions, IEnumerable<Mutation>, CallSettings)

public virtual Task<CommitResponse> CommitAsync(SessionName session, TransactionOptions singleUseTransaction, IEnumerable<Mutation> mutations, CallSettings callSettings = null)

Commits a transaction. The request includes the mutations to be applied to rows in the database.

Parameters

Name	Description
`session`	`SessionName` Required. The session in which the transaction to be committed is running.
`singleUseTransaction`	`TransactionOptions` Execute mutations in a temporary transaction. Note that unlike commit of a previously-started transaction, commit with a temporary transaction is non-idempotent. That is, if the `CommitRequest` is sent to Cloud Spanner more than once (for instance, due to retries in the application, or in the transport library), it is possible that the mutations are executed more than once. If this is undesirable, use [BeginTransaction][google.spanner.v1.Spanner.BeginTransaction] and [Commit][google.spanner.v1.Spanner.Commit] instead.
`mutations`	`IEnumerableMutation` The mutations to be executed when this transaction commits. All mutations are applied atomically, in the order they appear in this list.
`callSettings`	`CallSettings` If not null, applies overrides to this RPC call.

Returns

Type	Description
`TaskCommitResponse`	A Task containing the RPC response.

Example

// Create client
SpannerClient spannerClient = await SpannerClient.CreateAsync();
// Initialize request argument(s)
SessionName session = SessionName.FromProjectInstanceDatabaseSession("[PROJECT]", "[INSTANCE]", "[DATABASE]", "[SESSION]");
TransactionOptions singleUseTransaction = new TransactionOptions();
IEnumerable<Mutation> mutations = new Mutation[] { new Mutation(), };
// Make the request
CommitResponse response = await spannerClient.CommitAsync(session, singleUseTransaction, mutations);

CommitAsync(SessionName, TransactionOptions, IEnumerable<Mutation>, CancellationToken)

public virtual Task<CommitResponse> CommitAsync(SessionName session, TransactionOptions singleUseTransaction, IEnumerable<Mutation> mutations, CancellationToken cancellationToken)

Commits a transaction. The request includes the mutations to be applied to rows in the database.

Parameters

Name	Description
`session`	`SessionName` Required. The session in which the transaction to be committed is running.
`singleUseTransaction`	`TransactionOptions` Execute mutations in a temporary transaction. Note that unlike commit of a previously-started transaction, commit with a temporary transaction is non-idempotent. That is, if the `CommitRequest` is sent to Cloud Spanner more than once (for instance, due to retries in the application, or in the transport library), it is possible that the mutations are executed more than once. If this is undesirable, use [BeginTransaction][google.spanner.v1.Spanner.BeginTransaction] and [Commit][google.spanner.v1.Spanner.Commit] instead.
`mutations`	`IEnumerableMutation` The mutations to be executed when this transaction commits. All mutations are applied atomically, in the order they appear in this list.
`cancellationToken`	`CancellationToken` A CancellationToken to use for this RPC.

Returns

Type	Description
`TaskCommitResponse`	A Task containing the RPC response.

Example

// Create client
SpannerClient spannerClient = await SpannerClient.CreateAsync();
// Initialize request argument(s)
SessionName session = SessionName.FromProjectInstanceDatabaseSession("[PROJECT]", "[INSTANCE]", "[DATABASE]", "[SESSION]");
TransactionOptions singleUseTransaction = new TransactionOptions();
IEnumerable<Mutation> mutations = new Mutation[] { new Mutation(), };
// Make the request
CommitResponse response = await spannerClient.CommitAsync(session, singleUseTransaction, mutations);

CommitAsync(SessionName, ByteString, IEnumerable<Mutation>, CallSettings)

public virtual Task<CommitResponse> CommitAsync(SessionName session, ByteString transactionId, IEnumerable<Mutation> mutations, CallSettings callSettings = null)

Commits a transaction. The request includes the mutations to be applied to rows in the database.

Parameters

Name	Description
`session`	`SessionName` Required. The session in which the transaction to be committed is running.
`transactionId`	`ByteString` Commit a previously-started transaction.
`mutations`	`IEnumerableMutation` The mutations to be executed when this transaction commits. All mutations are applied atomically, in the order they appear in this list.
`callSettings`	`CallSettings` If not null, applies overrides to this RPC call.

Returns

Type	Description
`TaskCommitResponse`	A Task containing the RPC response.

Example

// Create client
SpannerClient spannerClient = await SpannerClient.CreateAsync();
// Initialize request argument(s)
SessionName session = SessionName.FromProjectInstanceDatabaseSession("[PROJECT]", "[INSTANCE]", "[DATABASE]", "[SESSION]");
ByteString transactionId = ByteString.Empty;
IEnumerable<Mutation> mutations = new Mutation[] { new Mutation(), };
// Make the request
CommitResponse response = await spannerClient.CommitAsync(session, transactionId, mutations);

CommitAsync(SessionName, ByteString, IEnumerable<Mutation>, CancellationToken)

public virtual Task<CommitResponse> CommitAsync(SessionName session, ByteString transactionId, IEnumerable<Mutation> mutations, CancellationToken cancellationToken)

Commits a transaction. The request includes the mutations to be applied to rows in the database.

Parameters

Name	Description
`session`	`SessionName` Required. The session in which the transaction to be committed is running.
`transactionId`	`ByteString` Commit a previously-started transaction.
`mutations`	`IEnumerableMutation` The mutations to be executed when this transaction commits. All mutations are applied atomically, in the order they appear in this list.
`cancellationToken`	`CancellationToken` A CancellationToken to use for this RPC.

Returns

Type	Description
`TaskCommitResponse`	A Task containing the RPC response.

Example

// Create client
SpannerClient spannerClient = await SpannerClient.CreateAsync();
// Initialize request argument(s)
SessionName session = SessionName.FromProjectInstanceDatabaseSession("[PROJECT]", "[INSTANCE]", "[DATABASE]", "[SESSION]");
ByteString transactionId = ByteString.Empty;
IEnumerable<Mutation> mutations = new Mutation[] { new Mutation(), };
// Make the request
CommitResponse response = await spannerClient.CommitAsync(session, transactionId, mutations);

CommitAsync(string, TransactionOptions, IEnumerable<Mutation>, CallSettings)

public virtual Task<CommitResponse> CommitAsync(string session, TransactionOptions singleUseTransaction, IEnumerable<Mutation> mutations, CallSettings callSettings = null)

Commits a transaction. The request includes the mutations to be applied to rows in the database.

Parameters

Name	Description
`session`	`string` Required. The session in which the transaction to be committed is running.
`singleUseTransaction`	`TransactionOptions` Execute mutations in a temporary transaction. Note that unlike commit of a previously-started transaction, commit with a temporary transaction is non-idempotent. That is, if the `CommitRequest` is sent to Cloud Spanner more than once (for instance, due to retries in the application, or in the transport library), it is possible that the mutations are executed more than once. If this is undesirable, use [BeginTransaction][google.spanner.v1.Spanner.BeginTransaction] and [Commit][google.spanner.v1.Spanner.Commit] instead.
`mutations`	`IEnumerableMutation` The mutations to be executed when this transaction commits. All mutations are applied atomically, in the order they appear in this list.
`callSettings`	`CallSettings` If not null, applies overrides to this RPC call.

Returns

Type	Description
`TaskCommitResponse`	A Task containing the RPC response.

Example

// Create client
SpannerClient spannerClient = await SpannerClient.CreateAsync();
// Initialize request argument(s)
string session = "projects/[PROJECT]/instances/[INSTANCE]/databases/[DATABASE]/sessions/[SESSION]";
TransactionOptions singleUseTransaction = new TransactionOptions();
IEnumerable<Mutation> mutations = new Mutation[] { new Mutation(), };
// Make the request
CommitResponse response = await spannerClient.CommitAsync(session, singleUseTransaction, mutations);

CommitAsync(string, TransactionOptions, IEnumerable<Mutation>, CancellationToken)

public virtual Task<CommitResponse> CommitAsync(string session, TransactionOptions singleUseTransaction, IEnumerable<Mutation> mutations, CancellationToken cancellationToken)

Commits a transaction. The request includes the mutations to be applied to rows in the database.

Parameters

Name	Description
`session`	`string` Required. The session in which the transaction to be committed is running.
`singleUseTransaction`	`TransactionOptions` Execute mutations in a temporary transaction. Note that unlike commit of a previously-started transaction, commit with a temporary transaction is non-idempotent. That is, if the `CommitRequest` is sent to Cloud Spanner more than once (for instance, due to retries in the application, or in the transport library), it is possible that the mutations are executed more than once. If this is undesirable, use [BeginTransaction][google.spanner.v1.Spanner.BeginTransaction] and [Commit][google.spanner.v1.Spanner.Commit] instead.
`mutations`	`IEnumerableMutation` The mutations to be executed when this transaction commits. All mutations are applied atomically, in the order they appear in this list.
`cancellationToken`	`CancellationToken` A CancellationToken to use for this RPC.

Returns

Type	Description
`TaskCommitResponse`	A Task containing the RPC response.

Example

// Create client
SpannerClient spannerClient = await SpannerClient.CreateAsync();
// Initialize request argument(s)
string session = "projects/[PROJECT]/instances/[INSTANCE]/databases/[DATABASE]/sessions/[SESSION]";
TransactionOptions singleUseTransaction = new TransactionOptions();
IEnumerable<Mutation> mutations = new Mutation[] { new Mutation(), };
// Make the request
CommitResponse response = await spannerClient.CommitAsync(session, singleUseTransaction, mutations);

CommitAsync(string, ByteString, IEnumerable<Mutation>, CallSettings)

public virtual Task<CommitResponse> CommitAsync(string session, ByteString transactionId, IEnumerable<Mutation> mutations, CallSettings callSettings = null)

Commits a transaction. The request includes the mutations to be applied to rows in the database.

Parameters

Name	Description
`session`	`string` Required. The session in which the transaction to be committed is running.
`transactionId`	`ByteString` Commit a previously-started transaction.
`mutations`	`IEnumerableMutation` The mutations to be executed when this transaction commits. All mutations are applied atomically, in the order they appear in this list.
`callSettings`	`CallSettings` If not null, applies overrides to this RPC call.

Returns

Type	Description
`TaskCommitResponse`	A Task containing the RPC response.

Example

// Create client
SpannerClient spannerClient = await SpannerClient.CreateAsync();
// Initialize request argument(s)
string session = "projects/[PROJECT]/instances/[INSTANCE]/databases/[DATABASE]/sessions/[SESSION]";
ByteString transactionId = ByteString.Empty;
IEnumerable<Mutation> mutations = new Mutation[] { new Mutation(), };
// Make the request
CommitResponse response = await spannerClient.CommitAsync(session, transactionId, mutations);

CommitAsync(string, ByteString, IEnumerable<Mutation>, CancellationToken)

public virtual Task<CommitResponse> CommitAsync(string session, ByteString transactionId, IEnumerable<Mutation> mutations, CancellationToken cancellationToken)

Commits a transaction. The request includes the mutations to be applied to rows in the database.

Parameters

Name	Description
`session`	`string` Required. The session in which the transaction to be committed is running.
`transactionId`	`ByteString` Commit a previously-started transaction.
`mutations`	`IEnumerableMutation` The mutations to be executed when this transaction commits. All mutations are applied atomically, in the order they appear in this list.
`cancellationToken`	`CancellationToken` A CancellationToken to use for this RPC.

Returns

Type	Description
`TaskCommitResponse`	A Task containing the RPC response.

Example

// Create client
SpannerClient spannerClient = await SpannerClient.CreateAsync();
// Initialize request argument(s)
string session = "projects/[PROJECT]/instances/[INSTANCE]/databases/[DATABASE]/sessions/[SESSION]";
ByteString transactionId = ByteString.Empty;
IEnumerable<Mutation> mutations = new Mutation[] { new Mutation(), };
// Make the request
CommitResponse response = await spannerClient.CommitAsync(session, transactionId, mutations);

Create()

public static SpannerClient Create()

Synchronously creates a SpannerClient using the default credentials, endpoint and settings. To specify custom credentials or other settings, use SpannerClientBuilder.

Returns

Type	Description
`SpannerClient`	The created SpannerClient.

CreateAsync(CancellationToken)

public static Task<SpannerClient> CreateAsync(CancellationToken cancellationToken = default)

Asynchronously creates a SpannerClient using the default credentials, endpoint and settings. To specify custom credentials or other settings, use SpannerClientBuilder.

Parameter

Name	Description
`cancellationToken`	`CancellationToken` The CancellationToken to use while creating the client.

Returns

Type	Description
`TaskSpannerClient`	The task representing the created SpannerClient.

CreateSession(DatabaseName, CallSettings)

public virtual Session CreateSession(DatabaseName database, CallSettings callSettings = null)

Creates a new session. A session can be used to perform transactions that read and/or modify data in a Cloud Spanner database. Sessions are meant to be reused for many consecutive transactions.

Sessions can only execute one transaction at a time. To execute multiple concurrent read-write/write-only transactions, create multiple sessions. Note that standalone reads and queries use a transaction internally, and count toward the one transaction limit.

Active sessions use additional server resources, so it is a good idea to delete idle and unneeded sessions. Aside from explicit deletes, Cloud Spanner may delete sessions for which no operations are sent for more than an hour. If a session is deleted, requests to it return NOT_FOUND.

Idle sessions can be kept alive by sending a trivial SQL query periodically, e.g., "SELECT 1".

Parameters

Name	Description
`database`	`DatabaseName` Required. The database in which the new session is created.
`callSettings`	`CallSettings` If not null, applies overrides to this RPC call.

Returns

Type	Description
`Session`	The RPC response.

Example

// Create client
SpannerClient spannerClient = SpannerClient.Create();
// Initialize request argument(s)
DatabaseName database = DatabaseName.FromProjectInstanceDatabase("[PROJECT]", "[INSTANCE]", "[DATABASE]");
// Make the request
Session response = spannerClient.CreateSession(database);

CreateSession(CreateSessionRequest, CallSettings)

public virtual Session CreateSession(CreateSessionRequest request, CallSettings callSettings = null)

Creates a new session. A session can be used to perform transactions that read and/or modify data in a Cloud Spanner database. Sessions are meant to be reused for many consecutive transactions.

Idle sessions can be kept alive by sending a trivial SQL query periodically, e.g., "SELECT 1".

Parameters

Name	Description
`request`	`CreateSessionRequest` The request object containing all of the parameters for the API call.
`callSettings`	`CallSettings` If not null, applies overrides to this RPC call.

Returns

Type	Description
`Session`	The RPC response.

Example

// Create client
SpannerClient spannerClient = SpannerClient.Create();
// Initialize request argument(s)
CreateSessionRequest request = new CreateSessionRequest
{
    DatabaseAsDatabaseName = DatabaseName.FromProjectInstanceDatabase("[PROJECT]", "[INSTANCE]", "[DATABASE]"),
    Session = new Session(),
};
// Make the request
Session response = spannerClient.CreateSession(request);

CreateSession(string, CallSettings)

public virtual Session CreateSession(string database, CallSettings callSettings = null)

Creates a new session. A session can be used to perform transactions that read and/or modify data in a Cloud Spanner database. Sessions are meant to be reused for many consecutive transactions.

Idle sessions can be kept alive by sending a trivial SQL query periodically, e.g., "SELECT 1".

Parameters

Name	Description
`database`	`string` Required. The database in which the new session is created.
`callSettings`	`CallSettings` If not null, applies overrides to this RPC call.

Returns

Type	Description
`Session`	The RPC response.

Example

// Create client
SpannerClient spannerClient = SpannerClient.Create();
// Initialize request argument(s)
string database = "projects/[PROJECT]/instances/[INSTANCE]/databases/[DATABASE]";
// Make the request
Session response = spannerClient.CreateSession(database);

CreateSessionAsync(DatabaseName, CallSettings)

public virtual Task<Session> CreateSessionAsync(DatabaseName database, CallSettings callSettings = null)

Creates a new session. A session can be used to perform transactions that read and/or modify data in a Cloud Spanner database. Sessions are meant to be reused for many consecutive transactions.

Idle sessions can be kept alive by sending a trivial SQL query periodically, e.g., "SELECT 1".

Parameters

Name	Description
`database`	`DatabaseName` Required. The database in which the new session is created.
`callSettings`	`CallSettings` If not null, applies overrides to this RPC call.

Returns

Type	Description
`TaskSession`	A Task containing the RPC response.

Example

// Create client
SpannerClient spannerClient = await SpannerClient.CreateAsync();
// Initialize request argument(s)
DatabaseName database = DatabaseName.FromProjectInstanceDatabase("[PROJECT]", "[INSTANCE]", "[DATABASE]");
// Make the request
Session response = await spannerClient.CreateSessionAsync(database);

CreateSessionAsync(DatabaseName, CancellationToken)

public virtual Task<Session> CreateSessionAsync(DatabaseName database, CancellationToken cancellationToken)

Creates a new session. A session can be used to perform transactions that read and/or modify data in a Cloud Spanner database. Sessions are meant to be reused for many consecutive transactions.

Idle sessions can be kept alive by sending a trivial SQL query periodically, e.g., "SELECT 1".

Parameters

Name	Description
`database`	`DatabaseName` Required. The database in which the new session is created.
`cancellationToken`	`CancellationToken` A CancellationToken to use for this RPC.

Returns

Type	Description
`TaskSession`	A Task containing the RPC response.

Example

// Create client
SpannerClient spannerClient = await SpannerClient.CreateAsync();
// Initialize request argument(s)
DatabaseName database = DatabaseName.FromProjectInstanceDatabase("[PROJECT]", "[INSTANCE]", "[DATABASE]");
// Make the request
Session response = await spannerClient.CreateSessionAsync(database);

CreateSessionAsync(CreateSessionRequest, CallSettings)

public virtual Task<Session> CreateSessionAsync(CreateSessionRequest request, CallSettings callSettings = null)

Creates a new session. A session can be used to perform transactions that read and/or modify data in a Cloud Spanner database. Sessions are meant to be reused for many consecutive transactions.

Idle sessions can be kept alive by sending a trivial SQL query periodically, e.g., "SELECT 1".

Parameters

Name	Description
`request`	`CreateSessionRequest` The request object containing all of the parameters for the API call.
`callSettings`	`CallSettings` If not null, applies overrides to this RPC call.

Returns

Type	Description
`TaskSession`	A Task containing the RPC response.

Example

// Create client
SpannerClient spannerClient = await SpannerClient.CreateAsync();
// Initialize request argument(s)
CreateSessionRequest request = new CreateSessionRequest
{
    DatabaseAsDatabaseName = DatabaseName.FromProjectInstanceDatabase("[PROJECT]", "[INSTANCE]", "[DATABASE]"),
    Session = new Session(),
};
// Make the request
Session response = await spannerClient.CreateSessionAsync(request);

CreateSessionAsync(CreateSessionRequest, CancellationToken)

public virtual Task<Session> CreateSessionAsync(CreateSessionRequest request, CancellationToken cancellationToken)

Creates a new session. A session can be used to perform transactions that read and/or modify data in a Cloud Spanner database. Sessions are meant to be reused for many consecutive transactions.

Idle sessions can be kept alive by sending a trivial SQL query periodically, e.g., "SELECT 1".

Parameters

Name	Description
`request`	`CreateSessionRequest` The request object containing all of the parameters for the API call.
`cancellationToken`	`CancellationToken` A CancellationToken to use for this RPC.

Returns

Type	Description
`TaskSession`	A Task containing the RPC response.

Example

// Create client
SpannerClient spannerClient = await SpannerClient.CreateAsync();
// Initialize request argument(s)
CreateSessionRequest request = new CreateSessionRequest
{
    DatabaseAsDatabaseName = DatabaseName.FromProjectInstanceDatabase("[PROJECT]", "[INSTANCE]", "[DATABASE]"),
    Session = new Session(),
};
// Make the request
Session response = await spannerClient.CreateSessionAsync(request);

CreateSessionAsync(string, CallSettings)

public virtual Task<Session> CreateSessionAsync(string database, CallSettings callSettings = null)

Creates a new session. A session can be used to perform transactions that read and/or modify data in a Cloud Spanner database. Sessions are meant to be reused for many consecutive transactions.

Idle sessions can be kept alive by sending a trivial SQL query periodically, e.g., "SELECT 1".

Parameters

Name	Description
`database`	`string` Required. The database in which the new session is created.
`callSettings`	`CallSettings` If not null, applies overrides to this RPC call.

Returns

Type	Description
`TaskSession`	A Task containing the RPC response.

Example

// Create client
SpannerClient spannerClient = await SpannerClient.CreateAsync();
// Initialize request argument(s)
string database = "projects/[PROJECT]/instances/[INSTANCE]/databases/[DATABASE]";
// Make the request
Session response = await spannerClient.CreateSessionAsync(database);

CreateSessionAsync(string, CancellationToken)

public virtual Task<Session> CreateSessionAsync(string database, CancellationToken cancellationToken)

Creates a new session. A session can be used to perform transactions that read and/or modify data in a Cloud Spanner database. Sessions are meant to be reused for many consecutive transactions.

Idle sessions can be kept alive by sending a trivial SQL query periodically, e.g., "SELECT 1".

Parameters

Name	Description
`database`	`string` Required. The database in which the new session is created.
`cancellationToken`	`CancellationToken` A CancellationToken to use for this RPC.

Returns

Type	Description
`TaskSession`	A Task containing the RPC response.

Example

// Create client
SpannerClient spannerClient = await SpannerClient.CreateAsync();
// Initialize request argument(s)
string database = "projects/[PROJECT]/instances/[INSTANCE]/databases/[DATABASE]";
// Make the request
Session response = await spannerClient.CreateSessionAsync(database);

DeleteSession(DeleteSessionRequest, CallSettings)

public virtual void DeleteSession(DeleteSessionRequest request, CallSettings callSettings = null)

Ends a session, releasing server resources associated with it. This will asynchronously trigger cancellation of any operations that are running with this session.

Parameters

Name	Description
`request`	`DeleteSessionRequest` The request object containing all of the parameters for the API call.
`callSettings`	`CallSettings` If not null, applies overrides to this RPC call.

Example

// Create client
SpannerClient spannerClient = SpannerClient.Create();
// Initialize request argument(s)
DeleteSessionRequest request = new DeleteSessionRequest
{
    SessionName = SessionName.FromProjectInstanceDatabaseSession("[PROJECT]", "[INSTANCE]", "[DATABASE]", "[SESSION]"),
};
// Make the request
spannerClient.DeleteSession(request);

DeleteSession(SessionName, CallSettings)

public virtual void DeleteSession(SessionName name, CallSettings callSettings = null)

Ends a session, releasing server resources associated with it. This will asynchronously trigger cancellation of any operations that are running with this session.

Parameters

Name	Description
`name`	`SessionName` Required. The name of the session to delete.
`callSettings`	`CallSettings` If not null, applies overrides to this RPC call.

Example

// Create client
SpannerClient spannerClient = SpannerClient.Create();
// Initialize request argument(s)
SessionName name = SessionName.FromProjectInstanceDatabaseSession("[PROJECT]", "[INSTANCE]", "[DATABASE]", "[SESSION]");
// Make the request
spannerClient.DeleteSession(name);

DeleteSession(string, CallSettings)

public virtual void DeleteSession(string name, CallSettings callSettings = null)

Ends a session, releasing server resources associated with it. This will asynchronously trigger cancellation of any operations that are running with this session.

Parameters

Name	Description
`name`	`string` Required. The name of the session to delete.
`callSettings`	`CallSettings` If not null, applies overrides to this RPC call.

Example

// Create client
SpannerClient spannerClient = SpannerClient.Create();
// Initialize request argument(s)
string name = "projects/[PROJECT]/instances/[INSTANCE]/databases/[DATABASE]/sessions/[SESSION]";
// Make the request
spannerClient.DeleteSession(name);

DeleteSessionAsync(DeleteSessionRequest, CallSettings)

public virtual Task DeleteSessionAsync(DeleteSessionRequest request, CallSettings callSettings = null)

Ends a session, releasing server resources associated with it. This will asynchronously trigger cancellation of any operations that are running with this session.

Parameters

Name	Description
`request`	`DeleteSessionRequest` The request object containing all of the parameters for the API call.
`callSettings`	`CallSettings` If not null, applies overrides to this RPC call.

Returns

Type	Description
`Task`	A Task containing the RPC response.

Example

// Create client
SpannerClient spannerClient = await SpannerClient.CreateAsync();
// Initialize request argument(s)
DeleteSessionRequest request = new DeleteSessionRequest
{
    SessionName = SessionName.FromProjectInstanceDatabaseSession("[PROJECT]", "[INSTANCE]", "[DATABASE]", "[SESSION]"),
};
// Make the request
await spannerClient.DeleteSessionAsync(request);