PosTile

Fast Mapbox Vector Tile Server mainly suited for the openmaptiles vector tile schema

Features

• Support for PostGIS backend through a tm2source (as generated by OpenMapTiles)
• Support for PostGIS single layers
• Support for reading MBTiles
• On-the-fly reprojection to web mercator EPSG:3857 (only for single layers)
• Connection pooling and asynchronous requests thanks to asyncpg

Requirements

• Python >= 3.6
• for PostGIS backend, recent st_amvt function. At least PostGIS >= 2.4.0.

Installation

pip install cython
pip install -e .
postile --help

Using a Docker container

Start Postile with:

docker run --network host oslandia/postile postile --help

Example of serving postgis layers individually

postile --pguser **** --pgpassword **** --pgdatabase mydb --pghost localhost --listen-port 8080 --cors

Then layer boundaries can be served with:

http://localhost:8080/boundaries/z/x/y.pbf?fields=id,name

fields is optional, and when absent only geometries are encoded in the vector tile.

Preview

The root endpoint will display a built-in viewer with mapbox-gl-js. In DEBUG mode the same page will also add some checkboxes to show tile boundaries and collision boxes (for labels).

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For a concrete example using OpenMapTiles schema see this tutorial