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Package migration is an auto-generated package for the BigQuery Migration API.
The migration service, exposing apis for migration jobs operations, and agent management.
NOTE: This package is in beta. It is not stable, and may be subject to changes.
General documentation
For information that is relevant for all client libraries please reference https://pkg.go.dev/cloud.google.com/go#pkg-overview. Some information on this page includes:
- Authentication and Authorization
- Timeouts and Cancellation
- Testing against Client Libraries
- Debugging Client Libraries
- Inspecting errors
Example usage
To get started with this package, create a client.
ctx := context.Background() // This snippet has been automatically generated and should be regarded as a code template only. // It will require modifications to work: // - It may require correct/in-range values for request initialization. // - It may require specifying regional endpoints when creating the service client as shown in: // https://pkg.go.dev/cloud.google.com/go#hdr-Client_Options c, err := migration.NewClient(ctx) if err != nil { // TODO: Handle error. } defer c.Close()
The client will use your default application credentials. Clients should be reused instead of created as needed. The methods of Client are safe for concurrent use by multiple goroutines. The returned client must be Closed when it is done being used.
Using the Client
The following is an example of making an API call with the newly created client.
ctx := context.Background() // This snippet has been automatically generated and should be regarded as a code template only. // It will require modifications to work: // - It may require correct/in-range values for request initialization. // - It may require specifying regional endpoints when creating the service client as shown in: // https://pkg.go.dev/cloud.google.com/go#hdr-Client_Options c, err := migration.NewClient(ctx) if err != nil { // TODO: Handle error. } defer c.Close() req := &migrationpb.CreateMigrationWorkflowRequest{ // TODO: Fill request struct fields. // See https://pkg.go.dev/cloud.google.com/go/bigquery/migration/apiv2/migrationpb#CreateMigrationWorkflowRequest. } resp, err := c.CreateMigrationWorkflow(ctx, req) if err != nil { // TODO: Handle error. } // TODO: Use resp. _ = resp
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.
Functions
func DefaultAuthScopes
func DefaultAuthScopes() []string
DefaultAuthScopes reports the default set of authentication scopes to use with this package.
CallOptions
type CallOptions struct {
CreateMigrationWorkflow []gax.CallOption
GetMigrationWorkflow []gax.CallOption
ListMigrationWorkflows []gax.CallOption
DeleteMigrationWorkflow []gax.CallOption
StartMigrationWorkflow []gax.CallOption
GetMigrationSubtask []gax.CallOption
ListMigrationSubtasks []gax.CallOption
}
CallOptions contains the retry settings for each method of Client.
Client
type Client struct {
// The call options for this service.
CallOptions *CallOptions
// contains filtered or unexported fields
}
Client is a client for interacting with BigQuery Migration API. Methods, except Close, may be called concurrently. However, fields must not be modified concurrently with method calls.
Service to handle EDW migrations.
func NewClient
NewClient creates a new migration service client based on gRPC. The returned client must be Closed when it is done being used to clean up its underlying connections.
Service to handle EDW migrations.
Example
package main
import (
"context"
migration "cloud.google.com/go/bigquery/migration/apiv2"
)
func main() {
ctx := context.Background()
// This snippet has been automatically generated and should be regarded as a code template only.
// It will require modifications to work:
// - It may require correct/in-range values for request initialization.
// - It may require specifying regional endpoints when creating the service client as shown in:
// https://pkg.go.dev/cloud.google.com/go#hdr-Client_Options
c, err := migration.NewClient(ctx)
if err != nil {
// TODO: Handle error.
}
defer c.Close()
// TODO: Use client.
_ = c
}
func (*Client) Close
Close closes the connection to the API service. The user should invoke this when the client is no longer required.
func (*Client) Connection (deprecated)
func (c *Client) Connection() *grpc.ClientConn
Connection returns a connection to the API service.
Deprecated: Connections are now pooled so this method does not always return the same resource.
func (*Client) CreateMigrationWorkflow
func (c *Client) CreateMigrationWorkflow(ctx context.Context, req *migrationpb.CreateMigrationWorkflowRequest, opts ...gax.CallOption) (*migrationpb.MigrationWorkflow, error)
CreateMigrationWorkflow creates a migration workflow.
Example
package main
import (
"context"
migration "cloud.google.com/go/bigquery/migration/apiv2"
migrationpb "cloud.google.com/go/bigquery/migration/apiv2/migrationpb"
)
func main() {
ctx := context.Background()
// This snippet has been automatically generated and should be regarded as a code template only.
// It will require modifications to work:
// - It may require correct/in-range values for request initialization.
// - It may require specifying regional endpoints when creating the service client as shown in:
// https://pkg.go.dev/cloud.google.com/go#hdr-Client_Options
c, err := migration.NewClient(ctx)
if err != nil {
// TODO: Handle error.
}
defer c.Close()
req := &migrationpb.CreateMigrationWorkflowRequest{
// TODO: Fill request struct fields.
// See https://pkg.go.dev/cloud.google.com/go/bigquery/migration/apiv2/migrationpb#CreateMigrationWorkflowRequest.
}
resp, err := c.CreateMigrationWorkflow(ctx, req)
if err != nil {
// TODO: Handle error.
}
// TODO: Use resp.
_ = resp
}
func (*Client) DeleteMigrationWorkflow
func (c *Client) DeleteMigrationWorkflow(ctx context.Context, req *migrationpb.DeleteMigrationWorkflowRequest, opts ...gax.CallOption) error
DeleteMigrationWorkflow deletes a migration workflow by name.
Example
package main
import (
"context"
migration "cloud.google.com/go/bigquery/migration/apiv2"
migrationpb "cloud.google.com/go/bigquery/migration/apiv2/migrationpb"
)
func main() {
ctx := context.Background()
// This snippet has been automatically generated and should be regarded as a code template only.
// It will require modifications to work:
// - It may require correct/in-range values for request initialization.
// - It may require specifying regional endpoints when creating the service client as shown in:
// https://pkg.go.dev/cloud.google.com/go#hdr-Client_Options
c, err := migration.NewClient(ctx)
if err != nil {
// TODO: Handle error.
}
defer c.Close()
req := &migrationpb.DeleteMigrationWorkflowRequest{
// TODO: Fill request struct fields.
// See https://pkg.go.dev/cloud.google.com/go/bigquery/migration/apiv2/migrationpb#DeleteMigrationWorkflowRequest.
}
err = c.DeleteMigrationWorkflow(ctx, req)
if err != nil {
// TODO: Handle error.
}
}
func (*Client) GetMigrationSubtask
func (c *Client) GetMigrationSubtask(ctx context.Context, req *migrationpb.GetMigrationSubtaskRequest, opts ...gax.CallOption) (*migrationpb.MigrationSubtask, error)
GetMigrationSubtask gets a previously created migration subtask.
Example
package main
import (
"context"
migration "cloud.google.com/go/bigquery/migration/apiv2"
migrationpb "cloud.google.com/go/bigquery/migration/apiv2/migrationpb"
)
func main() {
ctx := context.Background()
// This snippet has been automatically generated and should be regarded as a code template only.
// It will require modifications to work:
// - It may require correct/in-range values for request initialization.
// - It may require specifying regional endpoints when creating the service client as shown in:
// https://pkg.go.dev/cloud.google.com/go#hdr-Client_Options
c, err := migration.NewClient(ctx)
if err != nil {
// TODO: Handle error.
}
defer c.Close()
req := &migrationpb.GetMigrationSubtaskRequest{
// TODO: Fill request struct fields.
// See https://pkg.go.dev/cloud.google.com/go/bigquery/migration/apiv2/migrationpb#GetMigrationSubtaskRequest.
}
resp, err := c.GetMigrationSubtask(ctx, req)
if err != nil {
// TODO: Handle error.
}
// TODO: Use resp.
_ = resp
}
func (*Client) GetMigrationWorkflow
func (c *Client) GetMigrationWorkflow(ctx context.Context, req *migrationpb.GetMigrationWorkflowRequest, opts ...gax.CallOption) (*migrationpb.MigrationWorkflow, error)
GetMigrationWorkflow gets a previously created migration workflow.
Example
package main
import (
"context"
migration "cloud.google.com/go/bigquery/migration/apiv2"
migrationpb "cloud.google.com/go/bigquery/migration/apiv2/migrationpb"
)
func main() {
ctx := context.Background()
// This snippet has been automatically generated and should be regarded as a code template only.
// It will require modifications to work:
// - It may require correct/in-range values for request initialization.
// - It may require specifying regional endpoints when creating the service client as shown in:
// https://pkg.go.dev/cloud.google.com/go#hdr-Client_Options
c, err := migration.NewClient(ctx)
if err != nil {
// TODO: Handle error.
}
defer c.Close()
req := &migrationpb.GetMigrationWorkflowRequest{
// TODO: Fill request struct fields.
// See https://pkg.go.dev/cloud.google.com/go/bigquery/migration/apiv2/migrationpb#GetMigrationWorkflowRequest.
}
resp, err := c.GetMigrationWorkflow(ctx, req)
if err != nil {
// TODO: Handle error.
}
// TODO: Use resp.
_ = resp
}
func (*Client) ListMigrationSubtasks
func (c *Client) ListMigrationSubtasks(ctx context.Context, req *migrationpb.ListMigrationSubtasksRequest, opts ...gax.CallOption) *MigrationSubtaskIterator
ListMigrationSubtasks lists previously created migration subtasks.
Example
package main
import (
"context"
migration "cloud.google.com/go/bigquery/migration/apiv2"
migrationpb "cloud.google.com/go/bigquery/migration/apiv2/migrationpb"
"google.golang.org/api/iterator"
)
func main() {
ctx := context.Background()
// This snippet has been automatically generated and should be regarded as a code template only.
// It will require modifications to work:
// - It may require correct/in-range values for request initialization.
// - It may require specifying regional endpoints when creating the service client as shown in:
// https://pkg.go.dev/cloud.google.com/go#hdr-Client_Options
c, err := migration.NewClient(ctx)
if err != nil {
// TODO: Handle error.
}
defer c.Close()
req := &migrationpb.ListMigrationSubtasksRequest{
// TODO: Fill request struct fields.
// See https://pkg.go.dev/cloud.google.com/go/bigquery/migration/apiv2/migrationpb#ListMigrationSubtasksRequest.
}
it := c.ListMigrationSubtasks(ctx, req)
for {
resp, err := it.Next()
if err == iterator.Done {
break
}
if err != nil {
// TODO: Handle error.
}
// TODO: Use resp.
_ = resp
}
}
func (*Client) ListMigrationWorkflows
func (c *Client) ListMigrationWorkflows(ctx context.Context, req *migrationpb.ListMigrationWorkflowsRequest, opts ...gax.CallOption) *MigrationWorkflowIterator
ListMigrationWorkflows lists previously created migration workflow.
Example
package main
import (
"context"
migration "cloud.google.com/go/bigquery/migration/apiv2"
migrationpb "cloud.google.com/go/bigquery/migration/apiv2/migrationpb"
"google.golang.org/api/iterator"
)
func main() {
ctx := context.Background()
// This snippet has been automatically generated and should be regarded as a code template only.
// It will require modifications to work:
// - It may require correct/in-range values for request initialization.
// - It may require specifying regional endpoints when creating the service client as shown in:
// https://pkg.go.dev/cloud.google.com/go#hdr-Client_Options
c, err := migration.NewClient(ctx)
if err != nil {
// TODO: Handle error.
}
defer c.Close()
req := &migrationpb.ListMigrationWorkflowsRequest{
// TODO: Fill request struct fields.
// See https://pkg.go.dev/cloud.google.com/go/bigquery/migration/apiv2/migrationpb#ListMigrationWorkflowsRequest.
}
it := c.ListMigrationWorkflows(ctx, req)
for {
resp, err := it.Next()
if err == iterator.Done {
break
}
if err != nil {
// TODO: Handle error.
}
// TODO: Use resp.
_ = resp
}
}
func (*Client) StartMigrationWorkflow
func (c *Client) StartMigrationWorkflow(ctx context.Context, req *migrationpb.StartMigrationWorkflowRequest, opts ...gax.CallOption) error
StartMigrationWorkflow starts a previously created migration workflow. I.e., the state transitions from DRAFT to RUNNING. This is a no-op if the state is already RUNNING. An error will be signaled if the state is anything other than DRAFT or RUNNING.
Example
package main
import (
"context"
migration "cloud.google.com/go/bigquery/migration/apiv2"
migrationpb "cloud.google.com/go/bigquery/migration/apiv2/migrationpb"
)
func main() {
ctx := context.Background()
// This snippet has been automatically generated and should be regarded as a code template only.
// It will require modifications to work:
// - It may require correct/in-range values for request initialization.
// - It may require specifying regional endpoints when creating the service client as shown in:
// https://pkg.go.dev/cloud.google.com/go#hdr-Client_Options
c, err := migration.NewClient(ctx)
if err != nil {
// TODO: Handle error.
}
defer c.Close()
req := &migrationpb.StartMigrationWorkflowRequest{
// TODO: Fill request struct fields.
// See https://pkg.go.dev/cloud.google.com/go/bigquery/migration/apiv2/migrationpb#StartMigrationWorkflowRequest.
}
err = c.StartMigrationWorkflow(ctx, req)
if err != nil {
// TODO: Handle error.
}
}
MigrationSubtaskIterator
type MigrationSubtaskIterator struct {
// Response is the raw response for the current page.
// It must be cast to the RPC response type.
// Calling Next() or InternalFetch() updates this value.
Response interface{}
// InternalFetch is for use by the Google Cloud Libraries only.
// It is not part of the stable interface of this package.
//
// InternalFetch returns results from a single call to the underlying RPC.
// The number of results is no greater than pageSize.
// If there are no more results, nextPageToken is empty and err is nil.
InternalFetch func(pageSize int, pageToken string) (results []*migrationpb.MigrationSubtask, nextPageToken string, err error)
// contains filtered or unexported fields
}
MigrationSubtaskIterator manages a stream of *migrationpb.MigrationSubtask.
func (*MigrationSubtaskIterator) Next
func (it *MigrationSubtaskIterator) Next() (*migrationpb.MigrationSubtask, error)
Next returns the next result. Its second return value is iterator.Done if there are no more results. Once Next returns Done, all subsequent calls will return Done.
func (*MigrationSubtaskIterator) PageInfo
func (it *MigrationSubtaskIterator) PageInfo() *iterator.PageInfo
PageInfo supports pagination. See the google.golang.org/api/iterator package for details.
MigrationWorkflowIterator
type MigrationWorkflowIterator struct {
// Response is the raw response for the current page.
// It must be cast to the RPC response type.
// Calling Next() or InternalFetch() updates this value.
Response interface{}
// InternalFetch is for use by the Google Cloud Libraries only.
// It is not part of the stable interface of this package.
//
// InternalFetch returns results from a single call to the underlying RPC.
// The number of results is no greater than pageSize.
// If there are no more results, nextPageToken is empty and err is nil.
InternalFetch func(pageSize int, pageToken string) (results []*migrationpb.MigrationWorkflow, nextPageToken string, err error)
// contains filtered or unexported fields
}
MigrationWorkflowIterator manages a stream of *migrationpb.MigrationWorkflow.
func (*MigrationWorkflowIterator) Next
func (it *MigrationWorkflowIterator) Next() (*migrationpb.MigrationWorkflow, error)
Next returns the next result. Its second return value is iterator.Done if there are no more results. Once Next returns Done, all subsequent calls will return Done.
func (*MigrationWorkflowIterator) PageInfo
func (it *MigrationWorkflowIterator) PageInfo() *iterator.PageInfo
PageInfo supports pagination. See the google.golang.org/api/iterator package for details.