heremap-node

HEREMAP-NODE

Set of node.js interfaces to HERE Maps REST APIs

Installation

npm install heremap-node

Usage

const heremap = require("heremap-node");

// your own credentials, to be obtained from developer.here.com
// by default, use production environemnt you may specify cit:true to use CIT
heremap.init({
    app_id: "YOUR APP_ID", app_code: "YOUR APP_CODE"
});


// simple geocoding
const res = await heremap.geocode("avenue des champs elysees, Paris");
console.log(res);

// Parallel geocoding and use in a route going from Paris to Versailles to bordeaux
const waypoints = [
    "avenue des champs-elysees, Paris",
    "Versailles, France",
    "Bordeaux,France",
];
const promises = waypoints.map(addr => heremap.geocode(addr));  // Arraéy of promises from geocoder
const result = await Promise.all(promises);                     // wait for all geocodes to be performed
const coords = result.map(resp => resp.coord);                  // extrct coords
const start = coords.shift();                                   // get start points and remove form list of waypoints
const resp = await heremap.route(start, coords);               // compute the route
console.log(result);

// Matrix Routing, exemple of 1:N
// Addresses are geocoding in parallel, and then first one is used as start point, all other as end points
const addresses = [
    "8 rue Benjamin Franklin Paris",
    "Perpignan, france",
    "Vannes, france",
    "Lyon,France",
    "Marseille,France",
    "Versailles,France"
];

const promises = addresses.map(addr => heremap.geocode(addr)); // array of promises
const result = await Promise.all(promises); // awaits all promises (gerocodes) to be performed
const coords = result.map(resp => resp.coord);  // get array of coords
const start = coords.shift();   // extract start point
const result = await heremap.matrix(start, coords); // does matrix routing
console.log(result);

Documentation from HERE

• HERE Developer web site
• HERE Developer's User guides in PDF