Internal Logger #

Kuzzle uses its own opinionated wrapper around Pino to log messages.

The internal logger has 6 priority levels:

• trace (not printed by default)
• debug (not printed by default)
• info
• warn
• error
• fatal

Usage in an Application #

Messages will be logged using the util.inspect method from Node.js.

By default the log level is set to info. You can change this configuration under the server.appLogs.level configuration key.

Example: Set the log level to verbose and log verbose messages

import { Backend } from "kuzzle";

const app = new Backend("black-mesa");

// Set log level to debug
app.config.set("server.appLogs.level", "debug");

app.start().then(() => {
  app.log.trace("trace"); // will not be printed
  app.log.debug("debug");
  app.log.info("info");
  app.log.warn("warn");

  app.log.level("trace"); // change log level at runtime
  app.log.trace("trace"); // will get printed this time
});