Netherlands Open Data Scraper - data.overheid.nl API

dataset

One Netherlands open dataset with its full DCAT-AP-DONL record: title, description, national identifier, data owner and publisher as OWMS authorities, harvest organization, source catalogue, OWMS themes in Dutch and English, keywords, licence with an open-licence flag, access rights, availability status, update frequency, EU High Value Dataset category, the basisregistratie, national-coverage and reference-data flags, contact point with email, phone and website, issue and modification dates, temporal coverage, spatial extent, legal foundation with its wetten.overheid.nl link, provenance, documentation, samples, related resources, and every file summarised with its format.

distribution

One downloadable file or OGC service: its access and download URLs, EU file-type URI with a plain name, machine-readable flag, media type, MIME type, distribution type, preview URL, licence, release date, and the link status the portal itself last recorded, plus the identity, owner and organization of the dataset it belongs to.

register-page

One listing page of a community register. The registers paginate at a fixed 10 entries a page, so this is the paging cost of the 4,667 data requests and the 1,671 organizations, billed per page read rather than per row.

datarequest

One public request from a citizen, journalist or company asking a Dutch public body to open a dataset: the title, what was asked for, the request number, the phase it reached in Dutch and English, the status, the body named as data owner, the theme and the date. 4,667 exist and no other Actor on the Store carries this register.

datarequest-detail

Optional. The data request page opened in full, adding the 15 fields the listing hides: the exact data and format and period requested, the intended use and impact, what the requester had already tried and why the existing data did not do, the government reply in full, the resolution, how the request arrived and the organization named as the possible data owner.

application

One of the applications registered as built on Netherlands open data, with its type, whether a public body or a company made it, its live URL, its data owner and the contact behind it.

catalog

One of the 36 regional, municipal or ministerial portals data.overheid.nl harvests, with its own portal URL, description and how many datasets it contributes.

group

One curated dataset group, for example the ten statutory basisregistraties or the municipal High Value Data list, with its full description and dataset count. 91 exist.

organization

One of the 1,671 public bodies in the portal register, with its governance layer (Rijk, Gemeente, Provincie, Waterschap), description, logo, permanent link and dataset count. Includes the bodies registered with no datasets, which is what a coverage audit is looking for.

authority-row

One data owner that appears in the filtered result set, with its OWMS authority URI, plain name, dataset count and a working link to its datasets on the portal. 187 publish at least one dataset.

theme-row

One of the 99 OWMS themes and sub-themes with its Dutch and English name, its parent theme, its URI and the number of datasets the catalogue index really returns for it.

format-row

One file format in the matched result set with its EU file-type URI, canonical name, machine-readable flag and dataset count. The catalogue uses 40 of them, from CSV and JSON to OGC WMS and WFS services.

licence-row

One licence in the matched result set with its URI, short code, the portal's own label, whether it is an open licence and how many datasets declare it.

keyword-row

One keyword from the catalogue vocabulary with the number of datasets carrying it, ranked, honouring whatever filters the run set. The catalogue holds 10,403 of them.

source-catalog-row

One source portal in the matched result set with how many datasets it contributes, so you can see at a glance which of the 23 feeder catalogues a filtered slice really comes from.

link-check

Optional. One file URL fetched from the publisher's own server to see whether it is actually alive: HTTP status, redirect target, content type, byte size and latency. data.overheid.nl harvests 23 catalogues and records a link status on only 8 percent of files, so for the other 92 percent nobody has ever checked.

file-probe

Optional. The first 64 KB of a file read with a range request, returning what the bytes really are, whether that contradicts the declared format, the CSV delimiter, the column headers and a sample row. Not charged when the file could not be read.

authority-profile

Optional. The owning body's governance layer, description, logo and total dataset count added to a dataset row. Each owner is fetched once per run and reused across every dataset it published.