package workflows

import "cloud.google.com/go/workflows/apiv1beta"

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.

Index ¶

• func DefaultAuthScopes() []string
• type CallOptions
• type Client
• func NewClient(ctx context.Context, opts ...option.ClientOption) (*Client, error)
• func (c *Client) Close() error
• func (c *Client) Connection() *grpc.ClientConn
• func (c *Client) CreateWorkflow(ctx context.Context, req *workflowspb.CreateWorkflowRequest, opts ...gax.CallOption) (*CreateWorkflowOperation, error)
• func (c *Client) CreateWorkflowOperation(name string) *CreateWorkflowOperation
• func (c *Client) DeleteWorkflow(ctx context.Context, req *workflowspb.DeleteWorkflowRequest, opts ...gax.CallOption) (*DeleteWorkflowOperation, error)
• func (c *Client) DeleteWorkflowOperation(name string) *DeleteWorkflowOperation
• func (c *Client) GetWorkflow(ctx context.Context, req *workflowspb.GetWorkflowRequest, opts ...gax.CallOption) (*workflowspb.Workflow, error)
• func (c *Client) ListWorkflows(ctx context.Context, req *workflowspb.ListWorkflowsRequest, opts ...gax.CallOption) *WorkflowIterator
• func (c *Client) UpdateWorkflow(ctx context.Context, req *workflowspb.UpdateWorkflowRequest, opts ...gax.CallOption) (*UpdateWorkflowOperation, error)
• func (c *Client) UpdateWorkflowOperation(name string) *UpdateWorkflowOperation
• type CreateWorkflowOperation
• func (op *CreateWorkflowOperation) Done() bool
• func (op *CreateWorkflowOperation) Metadata() (*workflowspb.OperationMetadata, error)
• func (op *CreateWorkflowOperation) Name() string
• func (op *CreateWorkflowOperation) Poll(ctx context.Context, opts ...gax.CallOption) (*workflowspb.Workflow, error)
• func (op *CreateWorkflowOperation) Wait(ctx context.Context, opts ...gax.CallOption) (*workflowspb.Workflow, error)
• type DeleteWorkflowOperation
• func (op *DeleteWorkflowOperation) Done() bool
• func (op *DeleteWorkflowOperation) Metadata() (*workflowspb.OperationMetadata, error)
• func (op *DeleteWorkflowOperation) Name() string
• func (op *DeleteWorkflowOperation) Poll(ctx context.Context, opts ...gax.CallOption) error
• func (op *DeleteWorkflowOperation) Wait(ctx context.Context, opts ...gax.CallOption) error
• type UpdateWorkflowOperation
• func (op *UpdateWorkflowOperation) Done() bool
• func (op *UpdateWorkflowOperation) Metadata() (*workflowspb.OperationMetadata, error)
• func (op *UpdateWorkflowOperation) Name() string
• func (op *UpdateWorkflowOperation) Poll(ctx context.Context, opts ...gax.CallOption) (*workflowspb.Workflow, error)
• func (op *UpdateWorkflowOperation) Wait(ctx context.Context, opts ...gax.CallOption) (*workflowspb.Workflow, error)
• type WorkflowIterator
• func (it *WorkflowIterator) Next() (*workflowspb.Workflow, error)
• func (it *WorkflowIterator) PageInfo() *iterator.PageInfo

Examples ¶

• Client.CreateWorkflow
• Client.DeleteWorkflow
• Client.GetWorkflow
• Client.ListWorkflows
• Client.UpdateWorkflow
• NewClient

Functions ¶

func DefaultAuthScopes ¶

func DefaultAuthScopes() []string

DefaultAuthScopes reports the default set of authentication scopes to use with this package.

Types ¶

type CallOptions ¶

type CallOptions struct {
	ListWorkflows  []gax.CallOption
	GetWorkflow    []gax.CallOption
	CreateWorkflow []gax.CallOption
	DeleteWorkflow []gax.CallOption
	UpdateWorkflow []gax.CallOption
}

CallOptions contains the retry settings for each method of Client.

type Client ¶

type Client struct {

	// LROClient is used internally to handle longrunning operations.
	// It is exposed so that its CallOptions can be modified if required.
	// Users should not Close this client.
	LROClient *lroauto.OperationsClient

	// The call options for this service.
	CallOptions *CallOptions
	// contains filtered or unexported fields
}

Client is a client for interacting with .

Methods, except Close, may be called concurrently. However, fields must not be modified concurrently with method calls.

func NewClient ¶

func NewClient(ctx context.Context, opts ...option.ClientOption) (*Client, error)

NewClient creates a new workflows client.

Workflows is used to deploy and execute workflow programs. Workflows makes sure the program executes reliably, despite hardware and networking interruptions.

package main

import (
	"context"

	workflows "cloud.google.com/go/workflows/apiv1beta"
)

func main() {
	ctx := context.Background()
	c, err := workflows.NewClient(ctx)
	if err != nil {
		// TODO: Handle error.
	}
	// TODO: Use client.
	_ = c
}

func (*Client) Close ¶

func (c *Client) Close() error

Close closes the connection to the API service. The user should invoke this when the client is no longer required.

func (*Client) Connection ¶

func (c *Client) Connection() *grpc.ClientConn

Connection returns a connection to the API service.

Deprecated.

func (*Client) CreateWorkflow ¶

func (c *Client) CreateWorkflow(ctx context.Context, req *workflowspb.CreateWorkflowRequest, opts ...gax.CallOption) (*CreateWorkflowOperation, error)

CreateWorkflow creates a new workflow. If a workflow with the specified name already exists in the specified project and location, the long running operation will return ALREADY_EXISTS error.

package main

import (
	"context"

	workflows "cloud.google.com/go/workflows/apiv1beta"

	workflowspb "google.golang.org/genproto/googleapis/cloud/workflows/v1beta"
)

func main() {
	// import workflowspb "google.golang.org/genproto/googleapis/cloud/workflows/v1beta"

	ctx := context.Background()
	c, err := workflows.NewClient(ctx)
	if err != nil {
		// TODO: Handle error.
	}

	req := &workflowspb.CreateWorkflowRequest{
		// TODO: Fill request struct fields.
	}
	op, err := c.CreateWorkflow(ctx, req)
	if err != nil {
		// TODO: Handle error.
	}

	resp, err := op.Wait(ctx)
	if err != nil {
		// TODO: Handle error.
	}
	// TODO: Use resp.
	_ = resp
}

func (*Client) CreateWorkflowOperation ¶

func (c *Client) CreateWorkflowOperation(name string) *CreateWorkflowOperation

CreateWorkflowOperation returns a new CreateWorkflowOperation from a given name. The name must be that of a previously created CreateWorkflowOperation, possibly from a different process.

func (*Client) DeleteWorkflow ¶

func (c *Client) DeleteWorkflow(ctx context.Context, req *workflowspb.DeleteWorkflowRequest, opts ...gax.CallOption) (*DeleteWorkflowOperation, error)

DeleteWorkflow deletes a workflow with the specified name. This method also cancels and deletes all running executions of the workflow.

package main

import (
	"context"

	workflows "cloud.google.com/go/workflows/apiv1beta"

	workflowspb "google.golang.org/genproto/googleapis/cloud/workflows/v1beta"
)

func main() {
	// import workflowspb "google.golang.org/genproto/googleapis/cloud/workflows/v1beta"

	ctx := context.Background()
	c, err := workflows.NewClient(ctx)
	if err != nil {
		// TODO: Handle error.
	}

	req := &workflowspb.DeleteWorkflowRequest{
		// TODO: Fill request struct fields.
	}
	op, err := c.DeleteWorkflow(ctx, req)
	if err != nil {
		// TODO: Handle error.
	}

	err = op.Wait(ctx)
	if err != nil {
		// TODO: Handle error.
	}
}

func (*Client) DeleteWorkflowOperation ¶

func (c *Client) DeleteWorkflowOperation(name string) *DeleteWorkflowOperation

DeleteWorkflowOperation returns a new DeleteWorkflowOperation from a given name. The name must be that of a previously created DeleteWorkflowOperation, possibly from a different process.

func (*Client) GetWorkflow ¶

func (c *Client) GetWorkflow(ctx context.Context, req *workflowspb.GetWorkflowRequest, opts ...gax.CallOption) (*workflowspb.Workflow, error)

GetWorkflow gets details of a single Workflow.

package main

import (
	"context"

	workflows "cloud.google.com/go/workflows/apiv1beta"

	workflowspb "google.golang.org/genproto/googleapis/cloud/workflows/v1beta"
)

func main() {
	// import workflowspb "google.golang.org/genproto/googleapis/cloud/workflows/v1beta"

	ctx := context.Background()
	c, err := workflows.NewClient(ctx)
	if err != nil {
		// TODO: Handle error.
	}

	req := &workflowspb.GetWorkflowRequest{
		// TODO: Fill request struct fields.
	}
	resp, err := c.GetWorkflow(ctx, req)
	if err != nil {
		// TODO: Handle error.
	}
	// TODO: Use resp.
	_ = resp
}

func (*Client) ListWorkflows ¶

func (c *Client) ListWorkflows(ctx context.Context, req *workflowspb.ListWorkflowsRequest, opts ...gax.CallOption) *WorkflowIterator

ListWorkflows lists Workflows in a given project and location. The default order is not specified.

package main

import (
	"context"

	workflows "cloud.google.com/go/workflows/apiv1beta"
	"google.golang.org/api/iterator"

	workflowspb "google.golang.org/genproto/googleapis/cloud/workflows/v1beta"
)

func main() {
	// import workflowspb "google.golang.org/genproto/googleapis/cloud/workflows/v1beta"
	// import "google.golang.org/api/iterator"

	ctx := context.Background()
	c, err := workflows.NewClient(ctx)
	if err != nil {
		// TODO: Handle error.
	}

	req := &workflowspb.ListWorkflowsRequest{
		// TODO: Fill request struct fields.
	}
	it := c.ListWorkflows(ctx, req)
	for {
		resp, err := it.Next()
		if err == iterator.Done {
			break
		}
		if err != nil {
			// TODO: Handle error.
		}
		// TODO: Use resp.
		_ = resp
	}
}

func (*Client) UpdateWorkflow ¶

func (c *Client) UpdateWorkflow(ctx context.Context, req *workflowspb.UpdateWorkflowRequest, opts ...gax.CallOption) (*UpdateWorkflowOperation, error)

UpdateWorkflow updates an existing workflow. Running this method has no impact on already running executions of the workflow. A new revision of the workflow may be created as a result of a successful update operation. In that case, such revision will be used in new workflow executions.

package main

import (
	"context"

	workflows "cloud.google.com/go/workflows/apiv1beta"

	workflowspb "google.golang.org/genproto/googleapis/cloud/workflows/v1beta"
)

func main() {
	// import workflowspb "google.golang.org/genproto/googleapis/cloud/workflows/v1beta"

	ctx := context.Background()
	c, err := workflows.NewClient(ctx)
	if err != nil {
		// TODO: Handle error.
	}

	req := &workflowspb.UpdateWorkflowRequest{
		// TODO: Fill request struct fields.
	}
	op, err := c.UpdateWorkflow(ctx, req)
	if err != nil {
		// TODO: Handle error.
	}

	resp, err := op.Wait(ctx)
	if err != nil {
		// TODO: Handle error.
	}
	// TODO: Use resp.
	_ = resp
}

func (*Client) UpdateWorkflowOperation ¶

func (c *Client) UpdateWorkflowOperation(name string) *UpdateWorkflowOperation

UpdateWorkflowOperation returns a new UpdateWorkflowOperation from a given name. The name must be that of a previously created UpdateWorkflowOperation, possibly from a different process.

type CreateWorkflowOperation ¶

type CreateWorkflowOperation struct {
	// contains filtered or unexported fields
}

CreateWorkflowOperation manages a long-running operation from CreateWorkflow.

func (*CreateWorkflowOperation) Done ¶

func (op *CreateWorkflowOperation) Done() bool

Done reports whether the long-running operation has completed.

func (*CreateWorkflowOperation) Metadata ¶

func (op *CreateWorkflowOperation) Metadata() (*workflowspb.OperationMetadata, error)

Metadata returns metadata associated with the long-running operation. Metadata itself does not contact the server, but Poll does. To get the latest metadata, call this method after a successful call to Poll. If the metadata is not available, the returned metadata and error are both nil.

func (*CreateWorkflowOperation) Name ¶

func (op *CreateWorkflowOperation) Name() string

Name returns the name of the long-running operation. The name is assigned by the server and is unique within the service from which the operation is created.

func (*CreateWorkflowOperation) Poll ¶

func (op *CreateWorkflowOperation) Poll(ctx context.Context, opts ...gax.CallOption) (*workflowspb.Workflow, error)

Poll fetches the latest state of the long-running operation.

Poll also fetches the latest metadata, which can be retrieved by Metadata.

If Poll fails, the error is returned and op is unmodified. If Poll succeeds and the operation has completed with failure, the error is returned and op.Done will return true. If Poll succeeds and the operation has completed successfully, op.Done will return true, and the response of the operation is returned. If Poll succeeds and the operation has not completed, the returned response and error are both nil.

func (*CreateWorkflowOperation) Wait ¶

func (op *CreateWorkflowOperation) Wait(ctx context.Context, opts ...gax.CallOption) (*workflowspb.Workflow, error)

Wait blocks until the long-running operation is completed, returning the response and any errors encountered.

See documentation of Poll for error-handling information.

type DeleteWorkflowOperation ¶

type DeleteWorkflowOperation struct {
	// contains filtered or unexported fields
}

DeleteWorkflowOperation manages a long-running operation from DeleteWorkflow.

func (*DeleteWorkflowOperation) Done ¶

func (op *DeleteWorkflowOperation) Done() bool

Done reports whether the long-running operation has completed.

func (*DeleteWorkflowOperation) Metadata ¶

func (op *DeleteWorkflowOperation) Metadata() (*workflowspb.OperationMetadata, error)

Metadata returns metadata associated with the long-running operation. Metadata itself does not contact the server, but Poll does. To get the latest metadata, call this method after a successful call to Poll. If the metadata is not available, the returned metadata and error are both nil.

func (*DeleteWorkflowOperation) Name ¶

func (op *DeleteWorkflowOperation) Name() string

Name returns the name of the long-running operation. The name is assigned by the server and is unique within the service from which the operation is created.

func (*DeleteWorkflowOperation) Poll ¶

func (op *DeleteWorkflowOperation) Poll(ctx context.Context, opts ...gax.CallOption) error

Poll fetches the latest state of the long-running operation.

Poll also fetches the latest metadata, which can be retrieved by Metadata.

If Poll fails, the error is returned and op is unmodified. If Poll succeeds and the operation has completed with failure, the error is returned and op.Done will return true. If Poll succeeds and the operation has completed successfully, op.Done will return true, and the response of the operation is returned. If Poll succeeds and the operation has not completed, the returned response and error are both nil.

func (*DeleteWorkflowOperation) Wait ¶

func (op *DeleteWorkflowOperation) Wait(ctx context.Context, opts ...gax.CallOption) error

Wait blocks until the long-running operation is completed, returning the response and any errors encountered.

See documentation of Poll for error-handling information.

type UpdateWorkflowOperation ¶

type UpdateWorkflowOperation struct {
	// contains filtered or unexported fields
}

UpdateWorkflowOperation manages a long-running operation from UpdateWorkflow.

func (*UpdateWorkflowOperation) Done ¶

func (op *UpdateWorkflowOperation) Done() bool

Done reports whether the long-running operation has completed.

func (*UpdateWorkflowOperation) Metadata ¶

func (op *UpdateWorkflowOperation) Metadata() (*workflowspb.OperationMetadata, error)

Metadata returns metadata associated with the long-running operation. Metadata itself does not contact the server, but Poll does. To get the latest metadata, call this method after a successful call to Poll. If the metadata is not available, the returned metadata and error are both nil.

func (*UpdateWorkflowOperation) Name ¶

func (op *UpdateWorkflowOperation) Name() string

Name returns the name of the long-running operation. The name is assigned by the server and is unique within the service from which the operation is created.

func (*UpdateWorkflowOperation) Poll ¶

func (op *UpdateWorkflowOperation) Poll(ctx context.Context, opts ...gax.CallOption) (*workflowspb.Workflow, error)

Poll fetches the latest state of the long-running operation.

Poll also fetches the latest metadata, which can be retrieved by Metadata.

If Poll fails, the error is returned and op is unmodified. If Poll succeeds and the operation has completed with failure, the error is returned and op.Done will return true. If Poll succeeds and the operation has completed successfully, op.Done will return true, and the response of the operation is returned. If Poll succeeds and the operation has not completed, the returned response and error are both nil.

func (*UpdateWorkflowOperation) Wait ¶

func (op *UpdateWorkflowOperation) Wait(ctx context.Context, opts ...gax.CallOption) (*workflowspb.Workflow, error)

Wait blocks until the long-running operation is completed, returning the response and any errors encountered.

See documentation of Poll for error-handling information.

type WorkflowIterator ¶

type WorkflowIterator 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 []*workflowspb.Workflow, nextPageToken string, err error)
	// contains filtered or unexported fields
}

WorkflowIterator manages a stream of *workflowspb.Workflow.

func (*WorkflowIterator) Next ¶

func (it *WorkflowIterator) Next() (*workflowspb.Workflow, 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 (*WorkflowIterator) PageInfo ¶

func (it *WorkflowIterator) PageInfo() *iterator.PageInfo

PageInfo supports pagination. See the google.golang.org/api/iterator package for details.

Source Files ¶

doc.go workflows_client.go