// Example logging an error: var http = require('http'); var Logger = require('../lib/bunyan'); var util = require('util'); var log = new Logger({ name: 'myserver', serializers: { err: Logger.stdSerializers.err, // <--- use this } }); try { throw new TypeError('boom'); } catch (err) { log.warn({err: err}, 'operation went boom: %s', err) // <--- here } log.info(new TypeError('how about this?')) // <--- alternatively this try { throw 'boom string'; } catch (err) { log.error(err) } /* BEGIN JSSTYLED */ /** * * $ node err.js | ../bin/bunyan -j * { * "name": "myserver", * "hostname": "banana.local", * "err": { * "stack": "TypeError: boom\n at Object.<anonymous> (/Users/trentm/tm/node-bunyan/examples/err.js:15:9)\n at Module._compile (module.js:411:26)\n at Object..js (module.js:417:10)\n at Module.load (module.js:343:31)\n at Function._load (module.js:302:12)\n at Array.0 (module.js:430:10)\n at EventEmitter._tickCallback (node.js:126:26)", * "name": "TypeError", * "message": "boom" * }, * "level": 4, * "msg": "operation went boom: TypeError: boom", * "time": "2012-02-02T04:42:53.206Z", * "v": 0 * } * $ node err.js | ../bin/bunyan * [2012-02-02T05:02:39.412Z] WARN: myserver on banana.local: operation went boom: TypeError: boom * TypeError: boom * at Object.<anonymous> (/Users/trentm/tm/node-bunyan/examples/err.js:15:9) * at Module._compile (module.js:411:26) * at Object..js (module.js:417:10) * at Module.load (module.js:343:31) * at Function._load (module.js:302:12) * at Array.0 (module.js:430:10) * at EventEmitter._tickCallback (node.js:126:26) * */ /* END JSSTYLED */