local-ip-address/lib/index.js

Get the machine IP on the local network.

"use strict";

var os = require("os");

/**
 * localIpAddress
 * Get the machine IP on the local network.
 *
 * @name localIpAddress
 * @function
 * @return {String} The local ip address as a string.
 */
module.exports = function localIpAddress() {
    var interfaces = Object.values(os.networkInterfaces());
    var _iteratorNormalCompletion = true;
    var _didIteratorError = false;
    var _iteratorError = undefined;

    try {
        for (var _iterator = interfaces[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
            var iface = _step.value;
            var _iteratorNormalCompletion2 = true;
            var _didIteratorError2 = false;
            var _iteratorError2 = undefined;

            try {
                for (var _iterator2 = iface[Symbol.iterator](), _step2; !(_iteratorNormalCompletion2 = (_step2 = _iterator2.next()).done); _iteratorNormalCompletion2 = true) {
                    var alias = _step2.value;

                    if (alias.family === "IPv4" && alias.address !== "127.0.0.1" && !alias.internal) {
                        return alias.address;
                    }
                }
            } catch (err) {
                _didIteratorError2 = true;
                _iteratorError2 = err;
            } finally {
                try {
                    if (!_iteratorNormalCompletion2 && _iterator2.return) {
                        _iterator2.return();
                    }
                } finally {
                    if (_didIteratorError2) {
                        throw _iteratorError2;
                    }
                }
            }
        }
    } catch (err) {
        _didIteratorError = true;
        _iteratorError = err;
    } finally {
        try {
            if (!_iteratorNormalCompletion && _iterator.return) {
                _iterator.return();
            }
        } finally {
            if (_didIteratorError) {
                throw _iteratorError;
            }
        }
    }

    return "0.0.0.0";
};