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Use GeoParquet and Map Layers
GeoParquet combines tabular data with geometry for maps and spatial analysis. MiniUp can publish spatial data as a hosted dataset and offers map/layer workflows from the dataset detail view.
Prepare geometry correctly
- Open the dataset’s Parquet detail or upload preview.
- Review its geometry information and coordinate fields.
- If using latitude and longitude, select the correct fields before publishing.
- Preview the map and confirm that features appear in the expected location.
GeoParquet geometry may appear as WKB binary or a hex value beginning with 0x. That is not GeoJSON text. Decode it with a compatible geometry library or use the supplied map/layer workflow. Do not pass raw WKB directly to a map library expecting GeoJSON.
Publish a read-only layer
From Use this data, open the ArcGIS/map sharing workflow and publish the read-only ArcGIS-compatible layer when available. Copy the resulting service URL and use it in the supported map client, such as ArcGIS Online. Check the read-only status and dataset access before sharing it.
A read-only layer is useful for distributing a published spatial dataset. It does not make the original external ArcGIS source editable.
Create an editable MiniUp layer
If the app needs spatial record edits, use the dataset detail’s option to create a separate editable MiniUp layer. Choose its name, slug, and access preset, then review its records and API. The editable layer is a separate resource; do not assume edits synchronize back to the source Parquet file or external service.
Example: parks and service requests
Publish park boundaries as a read-only layer and keep incoming service requests in an editable Table/layer. Load only features relevant to the current map area and only the fields needed by the UI.
Troubleshoot map placement and size
Check longitude versus latitude order, coordinate values, geometry encoding, and the dataset’s spatial metadata. A map with thousands of complex features may need bounded queries or simplified data. Test on a phone before sharing it.