graphhopper/dist/GraphHopperMatrix.js

A complete TypeScript client for the GraphHopper API, including Routing, Isochrone, Matrix, Map Matching, Optimization, and Geocoding modules.

import axios from 'axios';
import { Util } from './Util';
export class GraphHopperMatrix {
    constructor(args, requestDefaults) {
        this.defaults = {
            profile: 'car',
            debug: false,
            out_arrays: ['times']
        };
        if (requestDefaults) {
            Object.keys(requestDefaults).forEach(key => {
                this.defaults[key] = requestDefaults[key];
            });
        }
        this.key = args.key;
        this.host = args.host ? args.host : 'https://graphhopper.com/api/1';
        this.endpoint = args.endpoint ? args.endpoint : '/matrix';
        this.timeout = args.timeout ? args.timeout : 30000;
        this.ghUtil = new Util();
    }
    async doRequest(reqArgs) {
        Object.keys(this.defaults).forEach(key => {
            if (!reqArgs[key])
                reqArgs[key] = this.defaults[key];
        });
        if (!reqArgs.from_points && !reqArgs.to_points) {
            reqArgs.from_points = reqArgs.points;
            reqArgs.to_points = reqArgs.points;
            delete reqArgs["points"];
        }
        const url = `${this.host}${this.endpoint}?key=${this.key}`;
        try {
            const res = await axios.post(url, reqArgs, {
                timeout: this.timeout,
                headers: { 'Content-Type': 'application/json' }
            });
            if (res.status !== 200) {
                throw this.ghUtil.extractError(res, url);
            }
            return res.data;
        }
        catch (err) {
            throw this.ghUtil.extractError(err.response, url);
        }
    }
    toHtmlTable(request, doubleArray) {
        const to_points = request.to_points, from_points = request.from_points;
        let htmlOut = "<table border='1' cellpadding='10'>";
        htmlOut += "<tr>";
        htmlOut += "<td>&#8595; from \\ to &#8594;</td>";
        for (let idxTo in to_points) {
            htmlOut += `<td><b>${to_points[idxTo][1]},${to_points[idxTo][0]}</b></td>`;
        }
        htmlOut += "</tr>";
        for (let idxFrom in doubleArray) {
            htmlOut += "<tr>";
            htmlOut += `<td><b>${from_points[idxFrom][1]},${from_points[idxFrom][0]}</b></td>`;
            let res = doubleArray[idxFrom];
            for (let idxTo in res) {
                let mapsURL = `https://graphhopper.com/maps?point=${encodeURIComponent(from_points[idxFrom][1] + "," + from_points[idxFrom][0])}&point=${encodeURIComponent(to_points[idxTo][1] + "," + to_points[idxTo][0])}&profile=${request.profile}`;
                htmlOut += `<td> <a href='${mapsURL}'>${res[idxTo]}</a> </td>`;
            }
            htmlOut += "</tr>\n";
        }
        htmlOut += "</table>";
        return htmlOut;
    }
}