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Check your details (pattern)

Implement a realistic “check your answers” page with change links that return to the summary.

Goal

Build a realistic Check your details page that behaves like a real service:

  • users review answers
  • users can change answers
  • after a change they return to the summary

When to use

Use this pattern when you need a credible end-to-end journey (UR, stakeholder demos, handoff).

Steps

  1. Build a short journey (2–3 questions) that stores answers in session.
  2. Create a summary page ("check your details") that outputs those answers.
  3. Add Change links that take the user back to the relevant question page.
  4. Intercept the form submission for the changed answer so you can redirect back to the summary.

Code (minimal example)

A) Add a flag when the user hits the summary

js
// routes.js
router.get('/check-your-details', function (req, res) {
  req.session.data.__journeyComplete = true
  return res.render('check-your-details')
})

B) Route the “changed answer” POST via routes.js

Instead of posting to the next page, post to a route handler:

html
<form action="/question-1-answer" method="post">
  <!-- inputs -->
</form>

Then redirect depending on whether we’re in “change-mode” (journey complete):

js
// routes.js
router.post('/question-1-answer', function (req, res) {
  const complete = req.session.data.__journeyComplete
 
  if (complete) {
    return res.redirect('/check-your-details')
  }
 
  return res.redirect('/question-2')
})

Common mistakes

  • Posting directly to the next page (action="question-2") so you can’t intercept the redirect.
  • Forgetting to reset __journeyComplete when restarting the journey.
  • Not handling the case where changing an answer should trigger additional questions.

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