31. Network Interception & API Mocking with page.route()

Mocking Network Calls in Python

# Mock 500 error on checkout API:
page.route("/api/checkout", lambda route: route.fulfill(
    status=500,
    content_type="application/json",
    body='{"error": "Payment system down"}'
))
# Abort third-party tracking analytics:
page.route("/*google-analytics.com/", lambda route: route.abort())
# Fulfill empty list for search:
page.route("/api/search?*", lambda route: route.fulfill(
    status=200,
    content_type="application/json",
    body="[]"
))