Search for and scrape tender results — vmp_bb_scrape

Applies a filter via the portal's deep-link (the search state is a base64 JSON in the URL hash) and scrapes the result table across pages. Works without login (the search is public).

Usage

vmp_bb_scrape_tenders(
  session,
  publication_types = c("ExAnte", "Tender"),
  contracting_rules = "VOL",
  max_pages = Inf,
  search_url = VMP_BB_SEARCH_URL,
  stop_before = NULL
)

Arguments

session: A session from vmp_bb_session().
publication_types: Publication types to include. Default c("ExAnte", "Tender") (Beabsichtigte Ausschreibung + Ausschreibung). Further option: "ExPost" (Vergebener Auftrag).
contracting_rules: Procurement regulations to include. Default "VOL" (VgV / VOL/A / UVgO). Others: "VOB", "VSVGV", "SEKTVO", "OTHER".
max_pages: Maximum number of result pages to scrape (default Inf).
search_url: Extended-search URL (default the Brandenburg one; other cosinex portals pass their own via cosinex_urls()).
stop_before: Optional Date: stop paging once a result page is entirely older than this (results are sorted newest-first). Bounds the scrape for large portals/award histories; NULL (default) scrapes up to max_pages.

Value

A tibble with one row per tender (all pages combined). The Aktion column holds the project detail URL; the Veroeffentlichungstyp column labels each row ("Ausschreibung" / "Geplante Ausschreibung").

Examples

if (FALSE) { # \dontrun{
session <- vmp_bb_session()
tenders <- vmp_bb_scrape_tenders(session, max_pages = 2)
} # }