elasticmaps's Introduction

Elasticmaps

A Node.js map tile server based on node-mapnik and elasticsearch

Installation

npm install elasticmaps --save

Usage

// This is the most basic example. It assumes elasticsearch
// is running on localhost:9200, and that there is an index
// named elasticmaps_development which has documents with minimally
// an integer `id` and geo_point `location` field

var Elasticmaps = require( "elasticmaps" ),
    port = Number( process.env.PORT || 4000 );

var app = Elasticmaps.server( );
// create the tile route
app.get( "/:style/:zoom/:x/:y.:format([a-z\.]+)", Elasticmaps.route );

app.listen( port, function( ) {
  console.log( "Listening on " + port );
});

// In this example a custom config object is supplied
// when creating the server. Functions can be provided
// to create custom queries and styles based on the request

var Elasticmaps = require( "elasticmaps" ),
    port = Number( process.env.PORT || 4000 );

var config =  {
  environment: "production",
  debug: true,
  tileSize: 256,
  elasticsearch: {
    host: "localhost:9200",
    searchIndex: "points_index",
    geoPointField: "location"
  },
  prepareQuery: function( req, callback ) {
    req.elastic_query = ...;
    callback( null, req );
  },
  prepareStyle: function( req, callback ) {
    req.style = ...;
    callback( null, req );
  }
};

var server = Elasticmaps.server( config );
server.listen( port, function( ) {
  console.log( "Listening on " + port );
});

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