I understand what is happening - the color code characters get JSON-string-escaped - I just can‘t imagine that this is what anyone wants or expects, at least not when logging to the console. These are far superior options compared to those available when you use a console.log command, which requires logging code to be spread across your entire code base, breaking DRY principles. function in conjunction with JSON.stringify. "CHILL WINSTON! There are a lot of ways to shave the JSON-like yak, but I quickly hacked this one together to illustrate it's possible: I understand your point, although I personally don't see the importance of development-stage console output to actually be valid JSON byte-by-byte. keys (args). Following the documentation, I initialized the logger like this: However, when using this logger, I get encoded color codes instead of colors: I would have expected the log output to actually be colored. Another important advantage of Winston is customizing log message format as well as creating your own custom format. opts.all could instead e.g. This article is going to explore using winston and Elasticsearch to do “structured logging” in Node.js. https://github.com/winstonjs/logform/blob/master/colorize.js#L92. winston is designed to be a simple and universal logging library withsupport for multiple transports. format. I spent my day searching and then found this. Log to console in standard text format and log to file in JSON format. Codota search - find any JavaScript module, class or function I just spend the past couple of hours working on this and came up with pretty much the same solution. https://github.com/winstonjs/winston#formats. app.use(expressWinston.errorLogger({ transports: [ new winston.transports.Console({ json: true, colorize: true }) ] })); Sending Request Logs to Loggly Request logs can easily be sent to Loggly , while continuing to log to the console. Sign in winston aims t… We’ll occasionally send you account related emails. 2. This post will be a mixture of my experience of facing such issues and one way to resolve from thousands of way available . Levels: Winston adds another interesting layer, which is log levels. A transport is essentially a storage devicefor your logs. In Winston 2, it seemed to work fine expect it didn't colorize the entire line. ... true, maxsize: 5242880, // 5MB maxFiles: 5, colorize: false, } } const logger = winston.createLogger({ levels: winston.config.npm.levels, transports: [ new winston.transports.File(options.file) ], exitOnError: false }) In this case, you need to pick a log … Node.js installed using the official PPA, as explained in How To Install Node.js on Ubuntu 16.04.With these prerequisites in place, we can build our application and install Winston. The basic idea is that we want to write logs with some metadata attached to them, beyond just a timestamp, a level, and a message. Forexample, one may want error logs to be stored in a persistent remote location(like a database), but all logs output to the console or a local file. Winston@3 console formatter for debugging purposes using util.inspect(). piping to a file. Each winston logger can have multiple transports (see:Transports) configured at different levels (see: Logging levels). Sign up for a free GitHub account to open an issue and contact its maintainers and the community. I just want my log levels to appear in red/yellow/green and appear as JSON payloads during development. Log to a file in addition to the console. A transport is essentially a storage device for your logs. colorize ({all: true}), winston. Q&A for Work. winston aims to decouple parts of the logging process to make it moreflexible and extensible. In standard text format and log to file in addition to the console want my log levels to appear red/yellow/green... User and a firewall i had my format function set to: @ that! 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