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Package storage is an auto-generated package for the BigQuery Storage API.
Use of Context
The ctx passed to NewClient is used for authentication requests and for creating the underlying connection, but is not used for subsequent calls. Individual methods on the client use the ctx given to them.
To close the open connection, use the Close() method.
For information about setting deadlines, reusing contexts, and more please visit pkg.go.dev/cloud.google.com/go.
Functions
func DefaultAuthScopes
func
DefaultAuthScopes
()
[]
string
DefaultAuthScopes reports the default set of authentication scopes to use with this package.
BigQueryWriteCallOptions
type
BigQueryWriteCallOptions
struct
{
CreateWriteStream
[]
gax
.
CallOption
AppendRows
[]
gax
.
CallOption
GetWriteStream
[]
gax
.
CallOption
FinalizeWriteStream
[]
gax
.
CallOption
BatchCommitWriteStreams
[]
gax
.
CallOption
FlushRows
[]
gax
.
CallOption
}
BigQueryWriteCallOptions contains the retry settings for each method of BigQueryWriteClient.
BigQueryWriteClient
type
BigQueryWriteClient
struct
{
// The call options for this service.
CallOptions
*
BigQueryWriteCallOptions
// contains filtered or unexported fields
}
BigQueryWriteClient is a client for interacting with BigQuery Storage API.
Methods, except Close, may be called concurrently. However, fields must not be modified concurrently with method calls.
func NewBigQueryWriteClient
func
NewBigQueryWriteClient
(
ctx
context
.
Context
,
opts
...
option
.
ClientOption
)
(
*
BigQueryWriteClient
,
error
)
NewBigQueryWriteClient creates a new big query write client.
BigQuery Write API.
The Write API can be used to write data to BigQuery.
Example
package
main
import
(
"context"
storage
"cloud.google.com/go/bigquery/storage/apiv1alpha2"
)
func
main
()
{
ctx
:=
context
.
Background
()
c
,
err
:=
storage
.
NewBigQueryWriteClient
(
ctx
)
if
err
!=
nil
{
// TODO: Handle error.
}
// TODO: Use client.
_
=
c
}
func (*BigQueryWriteClient) AppendRows
func
(
c
*
BigQueryWriteClient
)
AppendRows
(
ctx
context
.
Context
,
opts
...
gax
.
CallOption
)
(
storagepb
.
BigQueryWrite_AppendRowsClient
,
error
)
AppendRows appends data to the given stream.
If offset is specified, the offset is checked against the end of stream. The server returns OUT_OF_RANGE in AppendRowsResponse if an attempt is made to append to an offset beyond the current end of the stream or ALREADY_EXISTS if user provids an offset that has already been written to. User can retry with adjusted offset within the same RPC stream. If offset is not specified, append happens at the end of the stream.
The response contains the offset at which the append happened. Responses are received in the same order in which requests are sent. There will be one response for each successful request. If the offset is not set in response, it means append didn’t happen due to some errors. If one request fails, all the subsequent requests will also fail until a success request is made again.
If the stream is of PENDING type, data will only be available for read operations after the stream is committed.
Example
package
main
import
(
"context"
"io"
storage
"cloud.google.com/go/bigquery/storage/apiv1alpha2"
storagepb
"google.golang.org/genproto/googleapis/cloud/bigquery/storage/v1alpha2"
)
func
main
()
{
// import storagepb "google.golang.org/genproto/googleapis/cloud/bigquery/storage/v1alpha2"
ctx
:=
context
.
Background
()
c
,
err
:=
storage
.
NewBigQueryWriteClient
(
ctx
)
if
err
!=
nil
{
// TODO: Handle error.
}
stream
,
err
:=
c
.
AppendRows
(
ctx
)
if
err
!=
nil
{
// TODO: Handle error.
}
go
func
()
{
reqs
:=
[]
*
storagepb
.
AppendRowsRequest
{
// TODO: Create requests.
}
for
_
,
req
:=
range
reqs
{
if
err
:=
stream
.
Send
(
req
);
err
!=
nil
{
// TODO: Handle error.
}
}
stream
.
CloseSend
()
}()
for
{
resp
,
err
:=
stream
.
Recv
()
if
err
==
io
.
EOF
{
break
}
if
err
!=
nil
{
// TODO: handle error.
}
// TODO: Use resp.
_
=
resp
}
}
func (*BigQueryWriteClient) BatchCommitWriteStreams
func
(
c
*
BigQueryWriteClient
)
BatchCommitWriteStreams
(
ctx
context
.
Context
,
req
*
storagepb
.
BatchCommitWriteStreamsRequest
,
opts
...
gax
.
CallOption
)
(
*
storagepb
.
BatchCommitWriteStreamsResponse
,
error
)
BatchCommitWriteStreams atomically commits a group of PENDING streams that belong to the same parent table. Streams must be finalized before commit and cannot be committed multiple times. Once a stream is committed, data in the stream becomes available for read operations.
Example
package
main
import
(
"context"
storage
"cloud.google.com/go/bigquery/storage/apiv1alpha2"
storagepb
"google.golang.org/genproto/googleapis/cloud/bigquery/storage/v1alpha2"
)
func
main
()
{
// import storagepb "google.golang.org/genproto/googleapis/cloud/bigquery/storage/v1alpha2"
ctx
:=
context
.
Background
()
c
,
err
:=
storage
.
NewBigQueryWriteClient
(
ctx
)
if
err
!=
nil
{
// TODO: Handle error.
}
req
:=
& storagepb
.
BatchCommitWriteStreamsRequest
{
// TODO: Fill request struct fields.
}
resp
,
err
:=
c
.
BatchCommitWriteStreams
(
ctx
,
req
)
if
err
!=
nil
{
// TODO: Handle error.
}
// TODO: Use resp.
_
=
resp
}
func (*BigQueryWriteClient) Close
func
(
c
*
BigQueryWriteClient
)
Close
()
error
Close closes the connection to the API service. The user should invoke this when the client is no longer required.
func (*BigQueryWriteClient) Connection
func
(
c
*
BigQueryWriteClient
)
Connection
()
*
grpc
.
ClientConn
Connection returns a connection to the API service.
Deprecated.
func (*BigQueryWriteClient) CreateWriteStream
func
(
c
*
BigQueryWriteClient
)
CreateWriteStream
(
ctx
context
.
Context
,
req
*
storagepb
.
CreateWriteStreamRequest
,
opts
...
gax
.
CallOption
)
(
*
storagepb
.
WriteStream
,
error
)
CreateWriteStream creates a write stream to the given table.
Example
package
main
import
(
"context"
storage
"cloud.google.com/go/bigquery/storage/apiv1alpha2"
storagepb
"google.golang.org/genproto/googleapis/cloud/bigquery/storage/v1alpha2"
)
func
main
()
{
// import storagepb "google.golang.org/genproto/googleapis/cloud/bigquery/storage/v1alpha2"
ctx
:=
context
.
Background
()
c
,
err
:=
storage
.
NewBigQueryWriteClient
(
ctx
)
if
err
!=
nil
{
// TODO: Handle error.
}
req
:=
& storagepb
.
CreateWriteStreamRequest
{
// TODO: Fill request struct fields.
}
resp
,
err
:=
c
.
CreateWriteStream
(
ctx
,
req
)
if
err
!=
nil
{
// TODO: Handle error.
}
// TODO: Use resp.
_
=
resp
}
func (*BigQueryWriteClient) FinalizeWriteStream
func
(
c
*
BigQueryWriteClient
)
FinalizeWriteStream
(
ctx
context
.
Context
,
req
*
storagepb
.
FinalizeWriteStreamRequest
,
opts
...
gax
.
CallOption
)
(
*
storagepb
.
FinalizeWriteStreamResponse
,
error
)
FinalizeWriteStream finalize a write stream so that no new data can be appended to the stream.
Example
package
main
import
(
"context"
storage
"cloud.google.com/go/bigquery/storage/apiv1alpha2"
storagepb
"google.golang.org/genproto/googleapis/cloud/bigquery/storage/v1alpha2"
)
func
main
()
{
// import storagepb "google.golang.org/genproto/googleapis/cloud/bigquery/storage/v1alpha2"
ctx
:=
context
.
Background
()
c
,
err
:=
storage
.
NewBigQueryWriteClient
(
ctx
)
if
err
!=
nil
{
// TODO: Handle error.
}
req
:=
& storagepb
.
FinalizeWriteStreamRequest
{
// TODO: Fill request struct fields.
}
resp
,
err
:=
c
.
FinalizeWriteStream
(
ctx
,
req
)
if
err
!=
nil
{
// TODO: Handle error.
}
// TODO: Use resp.
_
=
resp
}
func (*BigQueryWriteClient) FlushRows
func
(
c
*
BigQueryWriteClient
)
FlushRows
(
ctx
context
.
Context
,
req
*
storagepb
.
FlushRowsRequest
,
opts
...
gax
.
CallOption
)
(
*
storagepb
.
FlushRowsResponse
,
error
)
FlushRows flushes rows to a BUFFERED stream. If users are appending rows to BUFFERED stream, flush operation is required in order for the rows to become available for reading. A Flush operation flushes up to any previously flushed offset in a BUFFERED stream, to the offset specified in the request.
Example
package
main
import
(
"context"
storage
"cloud.google.com/go/bigquery/storage/apiv1alpha2"
storagepb
"google.golang.org/genproto/googleapis/cloud/bigquery/storage/v1alpha2"
)
func
main
()
{
// import storagepb "google.golang.org/genproto/googleapis/cloud/bigquery/storage/v1alpha2"
ctx
:=
context
.
Background
()
c
,
err
:=
storage
.
NewBigQueryWriteClient
(
ctx
)
if
err
!=
nil
{
// TODO: Handle error.
}
req
:=
& storagepb
.
FlushRowsRequest
{
// TODO: Fill request struct fields.
}
resp
,
err
:=
c
.
FlushRows
(
ctx
,
req
)
if
err
!=
nil
{
// TODO: Handle error.
}
// TODO: Use resp.
_
=
resp
}
func (*BigQueryWriteClient) GetWriteStream
func
(
c
*
BigQueryWriteClient
)
GetWriteStream
(
ctx
context
.
Context
,
req
*
storagepb
.
GetWriteStreamRequest
,
opts
...
gax
.
CallOption
)
(
*
storagepb
.
WriteStream
,
error
)
GetWriteStream gets a write stream.
Example
package
main
import
(
"context"
storage
"cloud.google.com/go/bigquery/storage/apiv1alpha2"
storagepb
"google.golang.org/genproto/googleapis/cloud/bigquery/storage/v1alpha2"
)
func
main
()
{
// import storagepb "google.golang.org/genproto/googleapis/cloud/bigquery/storage/v1alpha2"
ctx
:=
context
.
Background
()
c
,
err
:=
storage
.
NewBigQueryWriteClient
(
ctx
)
if
err
!=
nil
{
// TODO: Handle error.
}
req
:=
& storagepb
.
GetWriteStreamRequest
{
// TODO: Fill request struct fields.
}
resp
,
err
:=
c
.
GetWriteStream
(
ctx
,
req
)
if
err
!=
nil
{
// TODO: Handle error.
}
// TODO: Use resp.
_
=
resp
}
