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Workflow.then()

The .then() method creates a sequential dependency between workflow steps, ensuring steps execute in a specific order.

Usage​

workflow.step(stepOne).then(stepTwo).then(stepThree);

Parameters​

step:

Step | string
The step instance or step ID that should execute after the previous step completes

Returns​

workflow:

LegacyWorkflow
The workflow instance for method chaining

Validation​

When using then:

  • The previous step must exist in the workflow
  • Steps cannot form circular dependencies
  • Each step can only appear once in a sequential chain

Error Handling​

try {
  workflow
    .step(stepA)
    .then(stepB)
    .then(stepA) // Will throw error - circular dependency
    .commit();
} catch (error) {
  if (error instanceof ValidationError) {
    console.log(error.type); // 'circular_dependency'
    console.log(error.details);
  }
}

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