WithTaskSpanResult | Workflows

workflows.WithTaskSpanResult[Result any](
    ctx context.Context,
    name string,
    f func(ctx context.Context) (Result, error),
) (Result, error)

Wrap a function with a tracing span using the current runner’s tracer and return the function result.

WithTaskSpanResult is an alias for WithSpanResult. Use it inside a task Execute method. If the context is not a task execution context, the function runs without creating a span.

Parameters

ctx context.Context required

The task execution context.

name string required

The name of the span.

f func(context.Context) (Result, error) required

The function to wrap.

Returns

The result and error returned by f.

Usage example

type Task struct{}

func (t *Task) Execute(ctx context.Context) error {
  result, err := workflows.WithTaskSpanResult(
    ctx,
    "Expensive Compute",
    func(ctx context.Context) (int, error) {
		  return 6 * 7, nil
	  },
  )
  if err != nil {
    return fmt.Errorf("failed to compute: %w", err)
  }

	return nil
}