Multi-Page Conversion Funnel & Checkout Canary Builder

2. Four-Stage Funnel Journey Assertions (Self-Serve Pricing -> Stripe Checkout Session Redirect (/pricing -> /checkout))

• Step 1 — Pricing Catalog DOM Assertion: Fetches GET https://apexclimate.com/pricing every 5m and asserts the checkout <form method="post" action="/checkout/..."> is present.
• Step 2 — Synthetic Checkout Session Initiation: Submits a POST request to your checkout initiation endpoint and verifies it does not return HTTP 500 or an expired API key error.
• Step 3 — Hosted Stripe Redirect Verification: Asserts the response returns HTTP 303 See Other with a Location header pointing to https://checkout.stripe.com/c/pay/cs_live_...
• Step 4 — Webhook Listener Health Check: Confirms your /api/stripe/webhook endpoint is reachable over TLS 1.3 and rejects unsigned payloads with HTTP 400 (proving signature verification is active).

# Multi-Step Pricing -> Stripe Checkout Redirect Canary (apexclimate.com)
# Step 1: Verify /pricing page renders checkout form
curl -fsS "https://apexclimate.com/pricing" | grep -q "/checkout/" && \
# Step 2: Verify POST /checkout initiates a live 303 redirect to checkout.stripe.com
curl -fsSI -X POST "https://apexclimate.com/checkout/monitor" \
  -d "email=canary%2Bmonitor@onbits.net" | grep -E "^(HTTP/|location:)"

{
  "funnel_id": "stripe_checkout_apexclimate.com",
  "interval": "5m",
  "steps": [
    {"step": 1, "method": "GET", "url": "https://apexclimate.com/pricing", "expect_status": 200, "assert_body_contains": "/checkout/"},
    {"step": 2, "method": "POST", "url": "https://apexclimate.com/checkout/monitor", "expect_status": 303, "assert_header_prefix": "Location: https://checkout.stripe.com/", "max_ms": 1800}
  ]
}