docorm/dist/logger.js

Persistence layer with ORM features for JSON documents

import _ from 'lodash';
import winston from 'winston';
import { docorm } from './index.js';
const levels = {
    emergency: 0,
    alert: 1,
    critical: 2,
    error: 3,
    warn: 4,
    notice: 5,
    info: 6,
    http: 7,
    db: 8,
    debug: 9,
    verbose: 10
};
const isDevelopment = false;
const level = () => {
    return isDevelopment ? 'debug' : 'db';
};
const colors = {
    emergency: 'red',
    alert: 'red',
    critical: 'red',
    error: 'red',
    warn: 'yellow',
    notice: 'yellow',
    info: 'green',
    http: 'magenta',
    db: 'magenta',
    debug: 'white',
    verbose: 'white'
};
winston.addColors(colors);
const formatMetadataAsText = (metadata) => {
    return _.map(Object.keys(metadata || {}), (key) => {
        const value = metadata[key];
        if (value != null) {
            const formattedValue = _.isObject(value) || _.isArray(value) ? JSON.stringify(value) : value.toString();
            return `    ${key}: ${formattedValue}`;
        }
    }).join('\n');
};
const textFormat = winston.format.combine(winston.format.errors({ stack: true }), winston.format.colorize({ all: true }), winston.format.metadata(), winston.format.timestamp({ format: 'YYYY-MM-DD HH:mm:ss:ms' }), winston.format.printf((info) => {
    const message = info.message;
    return [
        `${info.timestamp} ${info.level}: ${message}`,
        ...(_.keys(info.metadata || {}).length > 0 ? [formatMetadataAsText(info.metadata)] : [])
    ].join('\n');
}));
const jsonFormat = winston.format.combine(winston.format.metadata(), winston.format.errors({ stack: true }), winston.format.timestamp({ format: 'YYYY-MM-DD HH:mm:ss:ms' }), winston.format.json());
const transports = [
    new winston.transports.Console({
        format: isDevelopment ? textFormat : jsonFormat,
        handleExceptions: true
    })
    /* new winston.transports.File({
      filename: 'logs/error.log',
      level: 'error',
      format: jsonFormat
    })*/
];
let _logger = null;
export function setLogger(logger) {
    _logger = logger;
}
export default function logger() {
    if (!_logger && docorm.config.logger) {
        _logger = docorm.config.logger;
    }
    if (!_logger) {
        _logger = winston.createLogger({
            level: level(),
            levels,
            // format,
            transports,
            exitOnError: false
        });
    }
    return _logger;
}
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