如何将winston日志文件保存到mysql数据库中？

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. Answers to this question are eligible for a +50 reputation bounty. Mehdi Faraji wants to to this question.

I've configured the winston logger like this:

import winston from "winston";
const { SqlTransport } = require("winston-sql-transport");

const transportConfig = {
  client: "mysql2",
  connection: {
    host: "localhost",
    user: "root",
    password: "Mahdi54321",
    database: "todos",
    // port: "3307",
  },
  tableName: "logs",
};

const alignColorsAndTime = winston.format.combine(
  winston.format.colorize({
    all: true,
  }),
  winston.format.label({
    label: "[LOGGER]",
  }),
  winston.format.timestamp({
    format: "YYYY-MM-DD HH:mm:ss",
  }),
  winston.format.printf(
    (info) => `${info.label} ${info.timestamp} ${info.level} : ${info.message}`
  )
);

export const logger = winston.createLogger({
  level: "debug",
  transports: [
    new winston.transports.Console({
      format: winston.format.combine(
        winston.format.colorize(),
        alignColorsAndTime
      ),
    }),
    new winston.transports.File({
      filename: "logs/example.log",
      format: winston.format.combine(
        winston.format.timestamp({
          format: "YYYY-MM-DD HH:mm:ss",
        }),
        winston.format.json()
      ),
    }),
    new SqlTransport(transportConfig),
  ],
});

It only saves the first log and the next one is only saved in the file and not the database.

I'm guessing the new SqlTransport(transportConfig), doesn't run everytime so it can save every log to database.

How can I save every log one after another into mysql database?

Answer 1

The package you use is deprecated, instead, you can use the winston-mysql package: https://www.npmjs.com/package/winston-mysql

implmentation example as per docuentaion:

const options_default = {
    host: 'localhost',
    user: 'logger',
    password: 'logger*test',
    database: 'WinstonTest',
    table: 'sys_logs_default'
};

//custom log table fields
const options_custom = {
    host: 'localhost',
    user: 'logger',
    password: 'logger*test',
    database: 'WinstonTest',
    table: 'sys_logs_custom',
    fields: {level: 'mylevel', meta: 'metadata', message: 'source', timestamp: 'addDate'}
};

//meta json log table fields
const options_json = {
    host: 'localhost',
    user: 'logger',
    password: 'logger*test',
    database: 'WinstonTest',
    table: 'sys_logs_json'
};

const logger = winston.createLogger({
    level: 'debug',
    format: winston.format.json(),
    defaultMeta: { service: 'user-service' },
    transports: [
        new winston.transports.Console({
            format: winston.format.simple(),
        }),
        // or use: options_custom / options_json
        new winstonMysql(options_default),
    ],
});

const rnd = Math.floor(Math.random() * 1000);
const msg = `test message ${rnd}`;

logger.debug(msg, {message: msg, type: 'demo'});
logger.error(msg, {message: msg, type: 'demo'});
logger.info(msg, {message: msg, type: 'demo'});
logger.warn(msg, {message: msg, type: 'demo'});