var queries = require('geopipes-elasticsearch-backend').queries, sort = require('./sort'); function generate( params ){ var centroid = { lat: params.lat, lon: params.lon }; var query = queries.distance( centroid, { size: params.size || 1, sort: true, distance: '500km' }); query.sort = query.sort.concat( sort( params ) ); if ( params.categories && params.categories.length > 0 ) { addCategoriesFilter( query, params.categories ); } return query; } function addCategoriesFilter( query, categories ) { query.query.filtered.filter.bool.must.push({ terms: { category: categories } }); } module.exports = generate;