@flatscout/source-immobilier-ch

Source plugin for immobilier.ch. HTML-scraping plugin built on the site's public sitemap + embedded JSON-LD blocks. No anti-bot, no auth.

Coverage caveat

immobilier.ch is Romandie-heavy (probe-time counts: Geneva ~993, Lausanne ~500, Zurich ~220, Bern ~45). For Zurich-focused configs, use the url_must_include filter to drop the FR-CH long tail:

url_must_include: ['/zurich/zurich/']

For FR-CH users, leave the filter empty to scan everything.

How it works

1. Fetches https://www.immobilier.ch/sitemap/rents.xml listing every active rental detail URL with <lastmod>.
2. Sorts by lastmod desc and applies url_must_include filter.
3. Iterates up to max_details_per_scan URLs (default 50), fetches each detail page, extracts @type: Product + @type: Residence JSON-LD blocks and maps them into Listing.
4. Honors pace_ms between requests (default 5000ms, matches site's stated Crawl-delay).

Config

schedule: '*/15 * * * *'
sitemap_url: 'https://www.immobilier.ch/sitemap/rents.xml'
pace_ms: 5000
max_details_per_scan: 50
emit_on_first_scan: false
url_must_include: ['/zurich/zurich/']

Tests

pnpm --filter @flatscout/source-immobilier-ch test

XML parsing, JSON-LD extraction, and mapping use inline fixtures. No live network calls.