Winston-Axios

An axios transport for winston which allows for sending REST requests to an external API.

Usage

Setup

const { AxiosTransport } = require('winston-axios');

or

import { AxiosTransport } from 'winston-axios';

Create a logger with an Axios Transport

const winston = require('winston');
const { AxiosTransport } = require('winston-axios');

const logger = winston.createLogger({
  level: 'info',
  format: winston.format.json(),
  transports: [
    new AxiosTransport({
      url: 'http://localhost:9999',
      path: '/log',
      auth: 'abc123',
    }),
  ],
});

Add an Axios Transport to an existing logger

const { AxiosTransport } = require('winston-axios');

logger.add(
  new AxiosTransport({
    host: 'http://localhost:9999/log'
  })
);

Receiving the log message

You can simply use logger.info(request.body); to log the request in the external API as Winston can resolve the body.

More information on body formatting is to come.

Example

A production example of using this transport is available here: photoprism-helper logger.ts

Here is the relevant code, omitting anything not relevant to the transport:

import { createLogger, transports } from 'winston';
import { AxiosTransport } from 'winston-axios';

const config = {
  levelConsole: 'info',
  url: 'http://apiurl.com'
  key: 'abc123'
}
//.code here.//

// Create a logger instance with custom settings
export const logger = createLogger({
  transports: [
    new transports.Console({ level: config.levelConsole }),
    //.code here.//
  ],
    //.code here.//
});

//.code here.//

// Add an Axios transport to the logger instance
logger.add(
  new AxiosTransport({
    url: config.url,
    path: '/log',
    auth: config.key,
  })
);

Documentation

AxiosTransportOptions

Options for Axios Transport.

AxiosTransport

Transport for Winston that sends log messages to a remote server using Axios.

AxiosTransportOptions

Options for Axios Transport.

Param	Type	Description
url	string	The url to send the logs to.
path	string	The path to send the logs to. The destination url will resolve to url + path.
auth	string	The authentication token to send with the logs. Will override any auth headers provided in headers.
authType	TransportAuthType	The type of authentication to use.
method	TransportMethod	The method to use when sending the logs.
headers	AxiosRequestHeaders	The headers to send with the logs.

AxiosTransport

Transport for Winston that sends log messages to a remote server using Axios.

See: AxiosTransportOptions

new AxiosTransport(options)

Param	Type	Description
options	AxiosTransportOptions	The options for the transport.

Example

const logger = createLogger({
  transports: [
    new AxiosTransport({
      url: 'http://localhost:3000',
      path: '/logs',
    }),
  ],
});
logger.log({ level: 'info', message: 'Hello World' });