157 lines
3.6 KiB
JavaScript
157 lines
3.6 KiB
JavaScript
const moment = require('moment');
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// constants
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const LOG_PREFIX_DEBUG = 'debug';
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const LOG_PREFIX_INFO = 'info';
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const LOG_PREFIX_WARNING = 'warning';
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const LOG_PREFIX_ERROR = 'error';
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const LOGLEVEL_DEBUG = 0;
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const LOGLEVEL_INFO = 1;
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const LOGLEVEL_WARNING = 2;
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const LOGLEVEL_ERROR = 3;
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let loglevel;
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let timestamp;
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initialize();
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function initialize(loglevel, timestamp) {
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setLogLevel(loglevel || global.config?.log?.level);
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setTimestamp(timestamp || global.config?.log?.timestamp);
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}
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// set the loglevel
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function setLogLevel(value) {
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switch (value) {
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case LOG_PREFIX_DEBUG:
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case LOGLEVEL_DEBUG:
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loglevel = LOGLEVEL_DEBUG;
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break;
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case LOG_PREFIX_INFO:
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case LOGLEVEL_INFO:
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loglevel = LOGLEVEL_INFO;
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break;
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case LOG_PREFIX_WARNING:
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case LOGLEVEL_WARNING:
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loglevel = LOGLEVEL_WARNING;
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break;
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case LOG_PREFIX_ERROR:
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case LOGLEVEL_ERROR:
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loglevel = LOGLEVEL_ERROR;
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break;
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default:
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loglevel = LOGLEVEL_INFO;
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break;
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}
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}
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// get the timestamp format
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function setTimestamp(value) {
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timestamp = value || 'DD.MM.YYYY HH:mm:ss:SS';
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}
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// log a http request - response object
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function http(object) {
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if (object === undefined) {
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return;
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}
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let message = '[' + object.request.method + ':' + object.code + '] url: \'' + object.request.url + '\'';
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let counter = 1;
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for (let param in object.request.body) {
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message += ', parameter ' + counter + ': \'' + param + '=' + object.request.body[param] + '\'';
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counter++;
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}
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if (object.request.timestamp) {
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message += ' > ' + (new Date().getTime() - object.request.timestamp) + 'ms';
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}
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if (object.data) {
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message += ' > data: ' + object.data;
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}
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if (object.code != 200) {
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error(message.trim());
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return;
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}
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debug(message.trim());
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}
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// prefix log with 'info'
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function info(message) {
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if (loglevel > LOGLEVEL_INFO) {
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return;
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}
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trace(message);
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}
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// prefix log with 'info'
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function warn(message) {
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if (loglevel > LOGLEVEL_WARNING) {
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return;
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}
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trace(message, 'warning');
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}
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// prefix log with 'debug'
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function debug(message) {
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if (loglevel > LOGLEVEL_DEBUG) {
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return;
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}
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trace(message, 'debug');
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}
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// prefix log with 'error'
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function error(message) {
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if (loglevel > LOGLEVEL_ERROR) {
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return;
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}
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if (message.stack) {
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trace(message.stack, 'error');
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return;
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}
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if (message.errors !== undefined) {
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for (let index = 0; index < message.errors.length; index++) {
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trace(message.errors[index], 'error');
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}
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return;
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}
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if (message.message) {
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trace(message.message, 'error');
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return;
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}
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trace(message, 'error');
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}
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// default logging function
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function trace(message, prefix) {
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if (message === undefined || message === null || message.length === 0) {
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return;
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}
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if (prefix === undefined || prefix === null || prefix.length === 0) {
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prefix = 'info';
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}
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let print;
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switch (prefix) {
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case 'error':
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print = console.error;
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break;
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case 'debug':
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print = console.debug;
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break;
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case 'warning':
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print = console.warn;
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break;
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default:
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print = console.log;
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}
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message = moment().format(timestamp) + ' | ' + prefix + ' > ' + message;
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print(message);
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}
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// exports
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module.exports = {
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initialize,
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info,
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warn,
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debug,
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error,
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http
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} |