poll

package
v0.19.767 Latest Latest
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 Go to latest Published: Feb 5, 2026 License: AGPL-3.0 Imports: 5 Imported by: 0

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Index

Constants

This section is empty.

Variables

View Source 
var (
	NonRetryableError = errors.New("non-retryable")
	ExhaustedError    = errors.New("exhausted attempts new")
	ContinueAsNewErr  = errors.New("continue as new")
)

Functions

func Poll 

func Poll(ctx workflow.Context, v *validator.Validate, opts PollOpts) error

Types

type PollOpts 

type PollOpts struct {
	MaxTS           time.Time     `validate:"required"`
	InitialInterval time.Duration `validate:"required"`
	MaxInterval     time.Duration `validate:"required"`
	BackoffFactor   float64       `validate:"required"`
	// If set to > 0, Poll with return the ContinueAsNewErr after every N attempts.
	ContinueAsNewAfterAttempts int      `validate:"min=0"`
	Fn                         PollerFn `validate:"required"`

	PostAttemptHook func(workflow.Context, time.Duration) error
}

type PollerFn 

type PollerFn func(context workflow.Context) error

NOTE(jm): we use this pattern in many workflows, and while we do want to move to using signals to make it easier to control flow, this approach is still common.

Setting ContinueAsNewAfterAttempts to >0 will return ContinueAsNewErr after the given number of attempts. Use this to return workflow.ContinueAsNewErr to temporal for doing continue-as-new polling.

Source Files

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