portaljs-migrate

Migrate (harvest) datasets between open-data platforms. Reads CKAN, a DCAT-US /data.json catalog (DKAN, ArcGIS Hub, data.gov), a DCAT / DCAT-AP RDF feed (JSON-LD, Turtle, or RDF/XML), Socrata, OpenDataSoft, or an ArcGIS FeatureServer, and writes them to a static PortalJS catalog or pushes them into a CKAN instance over its API. Use when moving datasets from an external open-data platform into a PortalJS portal, or bridging one CKAN instance to another.

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Repository: jeremylongshore/claude-code-plugins-plus-skills
Last source activity: July 13, 2026 at 17:56
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PortalJS — Migrate

Overview

Harvest datasets from an external open-data platform into a PortalJS portal, or push them into a CKAN instance. Every source reads into one canonical shape — { slug, namespace, name, description, resources[] } — then writes to the target from that shape, so adding a source covers every target automatically.

Supported sources: CKAN, a DCAT-US /data.json catalog (DKAN, ArcGIS Hub, data.gov), a DCAT / DCAT-AP RDF feed, Socrata, OpenDataSoft, or an ArcGIS FeatureServer/MapServer. Supported targets: a static PortalJS catalog (datasets.json, resources linked by URL or downloaded into Cloudflare R2) or a CKAN instance over its write API.

This is the copy-into-the-portal path, the inverse of /portaljs-connect-ckan (which reads the source live at build time): a one-time, re-runnable snapshot so the portal stands alone and needs no backend.

Prerequisites

An existing PortalJS portal for the static target: datasets.json, package.json, and pages/[owner]/[slug].tsx must exist (the portaljs-catalog template).

Node 18+ and npm, with portal dependencies installed (npm install).

Network access to the source platform's API or feed URL.

For a CKAN target: a write API key in CKAN_API_KEY — never hardcoded.

For download copy mode: git-lfs and a PortalJS Arc account (or a self-hosted Giftless endpoint) to push resource files to R2.

For dcat-rdf sources: lib/metadata/dcat-harvest.ts and dcat-profiles.ts (copy from examples/portaljs-catalog/lib/metadata/ if missing), run via npx tsx.

Instructions

Gather input — source type, source URL, target (static/ckan), portal directory, copy mode (link/download), filters. Interview instead of erroring.

Validate the target — confirm the static catalog files exist, or that the CKAN URL and API key authenticate.

Detect the source type from the URL (or --source) and verify reachability.

Read the source into canonical dataset entries, per the source's field table in the reference doc.