Function buildUnifiedStartOutput

apps/sim/executor/utils/start-block.ts:410–462

(
  workflowInput: unknown,
  structuredInput: Record<string, unknown>,
  hasStructured: boolean
)

}

function buildUnifiedStartOutput(
  workflowInput: unknown,
  structuredInput: Record<string, unknown>,
  hasStructured: boolean
): NormalizedBlockOutput {
  const output: NormalizedBlockOutput = {}
  const structuredKeys = hasStructured ? new Set(Object.keys(structuredInput)) : null

  if (hasStructured) {
    for (const [key, value] of Object.entries(structuredInput)) {
      output[key] = value
    }
  }

  if (isRecordLike(workflowInput)) {
    for (const [key, value] of Object.entries(workflowInput)) {
      if (key === 'onUploadError') continue
      // Skip keys already set by schema-coerced structuredInput to
      // prevent raw workflowInput strings from overwriting typed values.
      if (structuredKeys?.has(key)) continue
      // Runtime values override defaults (except undefined/null which mean "not provided")
      if (value !== undefined && value !== null) {
        output[key] = value
      } else if (!Object.hasOwn(output, key)) {
        output[key] = value
      }
    }
  }

  if (!Object.hasOwn(output, 'input')) {
    const fallbackInput =
      isRecordLike(workflowInput) && typeof workflowInput.input !== 'undefined'
        ? ensureString(workflowInput.input)
        : ''
    output.input = fallbackInput ? fallbackInput : undefined
  } else if (typeof output.input === 'string' && output.input.length === 0) {
    output.input = undefined
  }

  if (!Object.hasOwn(output, 'conversationId')) {
    const conversationId =
      isRecordLike(workflowInput) && workflowInput.conversationId
        ? ensureString(workflowInput.conversationId)
        : undefined
    if (conversationId) {
      output.conversationId = conversationId
    }
  } else if (typeof output.conversationId === 'string' && output.conversationId.length === 0) {
    output.conversationId = undefined
  }

  return mergeFilesIntoOutput(output, workflowInput)
}

function buildApiOrInputOutput(finalInput: unknown, workflowInput: unknown): NormalizedBlockOutput {
  const isObjectInput = isRecordLike(finalInput)