https://github.com/simonw/datasette-leaflet-geojson

Datasette plugin that replaces any GeoJSON column values with a Leaflet map.
https://github.com/simonw/datasette-leaflet-geojson

datasette datasette-io datasette-plugin gis leaflet

Last synced: 3 months ago
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Datasette plugin that replaces any GeoJSON column values with a Leaflet map.

• Host: GitHub
• URL: https://github.com/simonw/datasette-leaflet-geojson
• Owner: simonw
• Created: 2018-05-27T01:42:30.000Z (over 7 years ago)
• Default Branch: main
• Last Pushed: 2024-04-25T05:04:35.000Z (over 1 year ago)
• Last Synced: 2025-06-17T10:50:49.139Z (4 months ago)
• Topics: datasette, datasette-io, datasette-plugin, gis, leaflet
• Language: Python
• Homepage:
• Size: 95.7 KB
• Stars: 23
• Watchers: 2
• Forks: 8
• Open Issues: 6
• Metadata Files:
  • Readme: README.md

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README

          
# datasette-leaflet-geojson

[![PyPI](https://img.shields.io/pypi/v/datasette-leaflet-geojson.svg)](https://pypi.org/project/datasette-leaflet-geojson/)

[![Changelog](https://img.shields.io/github/v/release/simonw/datasette-leaflet-geojson?include_prereleases&label=changelog)](https://github.com/simonw/datasette-leaflet-geojson/releases)

[![Tests](https://github.com/simonw/datasette-leaflet-geojson/workflows/Test/badge.svg)](https://github.com/simonw/datasette-leaflet-geojson/actions?query=workflow%3ATest)

[![License](https://img.shields.io/badge/license-Apache%202.0-blue.svg)](https://github.com/simonw/datasette-leaflet-geojson/blob/main/LICENSE)

Datasette plugin that replaces any GeoJSON column values with a Leaflet map

## Installation

Install this plugin in the same environment as Datasette.

    $ datasette install datasette-leaflet-geojson

## Usage

Any columns containing valid GeoJSON strings will have their contents replaced with a Leaflet map when they are displayed in the Datasette interface.

## Demo

You can try this plugin out at https://calands.datasettes.com/calands/superunits_with_maps

![datasette-leaflet-geojson in action](https://raw.github.com/simonw/datasette-leaflet-geojson/main/datasette-leaflet-geojson.png)

## Configuration

By default this plugin displays maps for the first ten rows, and shows a "Click to load map" prompt for rows past the first ten.

You can change this limit using the `default_maps_to_load` plugin configuration setting. Add this to your `metadata.json`:

```json

{

    "plugins": {

        "datasette-leaflet-geojson": {

            "default_maps_to_load": 20

        }

    }

}

```

Then run Datasette with `datasette mydb.db -m metadata.json`.