在nodejs服务器端运行传单

Question

I tried to run leaflet on a nodejs server side without success. I build it with jake as described in the download section, but then, when I require leaflet on a server file, if I start my node server, it crash with this error :

ReferenceError: window is not defined

Thanks node, I know it. But Is there a way to use leaflet on server side ? I need it for some operation on a L.geojson ( https://github.com/mapbox/leaflet-pip ) and I can't manage to do it without the "L" reference.

I'll appreciate any help. Thanks.

Answer 1

You can load leaflet in node.js by simulating the browser:

// Create globals so leaflet can load
global.window = {
  screen: {
    devicePixelRatio: 1
  }
};
global.document = {
  documentElement: {
    style: {}
  },
  getElementsByTagName: function() { return []; },
  createElement: function() { return {}; }
};
global.navigator = {
  userAgent: 'nodejs',
  platform: 'nodejs'
};
global.L = require('leaflet');

I used this in conjunction with Point in Polygon for Leaflet .

Answer 2

Vanilla Leaflet does not work in node. I've made a wrapper here: https://github.com/jieter/leaflet-headless