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osm-static-maps

Openstreetmap static maps is a nodejs lib, CLI and server open source inspired on google static map service

Here you have a demo. Also a dynamic version of the demo, for testing purposes.

How to use

1. CLI

sudo npm i -g osm-static-maps
osmsm --help
osmsm -g '{"type":"Point","coordinates":[-105.01621,39.57422]}' > map.png
sudo npm i -g osm-static-maps --unsafe-perm=true

2. nodejs library

npm install osm-static-maps
// index.js old school
osmsm = require('osm-static-maps');
osmsm({geojson: geojson})
  .then(function(imageBinaryBuffer) { ... })
  .catch(function(error) { ... })

// index.js modern style (also supports typescript)
import osmsm from 'osm-static-maps'
const imageBinaryBuffer = await osmsm({geojson})

3. Standalone sample server

sudo npm i -g osm-static-maps
osmsm serve

Or you can use docker-compose

git clone git@github.com:jperelli/osm-static-maps.git
cd osm-static-maps
docker-compose up

4. Cloud service

You can use the heroku-hosted alternative directly here

We are currently in the cloud beta, contact me directly at jperelli+osmsm@gmail.com so I can give you access to the cloud service.

API Reference

All parameters have a short and long version. The short version can be used only with the shell CLI. The long version can be used with the library and can be passed to the app server as GET query params, or POST json body (remember to set the header Content-Type: application/json)

ParameterDescriptionDefault Value
ggeojsongeojson object to be rendered in the mapundefined
fgeojsonfilefilename or url to read geojson data from (use '-' to read from stdin on CLI)undefined
Hheightheight in pixels of the returned img600
Wwidthheight in pixels of the returned img800
ccentercenter of the map lon,lat floats string(center of the geojson) or '-57.9524339,-34.921779'
zzoomzoomlevel of the leaflet mapvalue of maxZoom
ZmaxZoommax zoomlevel of the leaflet map17
Aattributionattribution legend'osm-static-maps / © OpenStreetMap contributors'
ttileserverUrlurl of a tileserver'http://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png'
mvectorserverUrlurl of a vector tile server (MVT style.json)undefined
MvectorserverTokentoken of the vector tile server (MVT)'no-token'
DrenderToHtmlreturns html of the webpage containing the map (instead of a binary image)false
Ftypeformat of the image returned ('jpeg'/'png')'png'
qqualityquality of the image returned (0-100, only for jpg)100
ximageminenable lossless compression with optipng / jpegtranfalse
Xoxipngenable losslsess compression with oxipngfalse
aarrowsrender arrows to show the direction of linestringsfalse
sscaleenable render a scale ruler (boolean or a json options object)false
Ttimeoutmiliseconds until page load throws timeout20000
kmarkerIconOptionsset marker icon options (a json options object) *see noteundefined (leaflet's default marker)
Sstylestyle to apply to each feature (a json options object) *see noteundefined (leaflet's default)
ehaltOnConsoleErrorthrow error if there is any console.error(...) when rendering the map imagefalse

Design considerations & architecture

Read the blogpost on the creation of this library and how it works internally

LICENSE

Credits

Specially to the contributors of