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winston-array-transport
write winston logs directly to javascript Array.
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Table of Contents
Motivation
There are a lot of cases where you need to parse and analyze your logs. For example, to access them during tests. This package provides transport that allows simply push logs to js array, so you don't need any runtime parsers anymore.
Requirements
To use library you need to have node and npm installed in your machine:
- node
>=10 - npm
>=6
Package is continuously tested on darwin, linux and win32 platforms. All active and maintenance LTS node releases are supported.
Installation
To install the library run the following command
npm i --save winston-array-transportUsage
The package can be used alongside any other winston transport.
import ArrayTransport from 'winston-array-transport';
import { createLogger } from 'winston';
const logs = [];
const transport = new ArrayTransport({ array: logs, json: true, level: 'info' });
export const logger = createLogger({
transports : [ transport ]
});
Configuration
Next options can be configured while transport creation:
- name - name of a transport,
ArrayTransportby default; - eol - end of line ,
os.EOLby default; - array - array, where all logs will be stored;
- parser - function, that will be applied to log messages;
- json - if set to
true,JSON.parseparser will be used; - limit - allows to limit amount of logs to
nlast items;
Contribute
Make the changes to the code and tests. Then commit to your branch. Be sure to follow the commit message conventions. Read Contributing Guidelines for details.