node-bunyan-lite/examples/err.js

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// Example logging an error:
var http = require('http');
var Logger = require('../lib/bunyan');
var util = require('util');
var log = new Logger({
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name: 'myserver',
serializers: {
err: Logger.stdSerializers.err, // <--- use this
}
});
try {
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throw new TypeError('boom');
} catch (err) {
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log.warn({err: err}, 'operation went boom: %s', err) // <--- here
}
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log.info(new TypeError('how about this?')) // <--- alternatively this
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try {
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throw 'boom string';
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} catch (err) {
log.error(err)
}
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/* 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 */