pino-step base on the pino

pino-step is a fork branch of the pino, please find more information from pino's README.

pino-step

pino is a very pretty node.js logger, pino-step just updates afew lines base on it.

Usage

npm install --save pino-step

Example

const pinoRaw = require('./')();
const pino = require('./')({
    prettyPrint: true
});

name instead of pid+hostname

as default, pino-step uses name or js script name instead of pid and hostname in pino.

pino.info({name: 'pino-json'}, 'this is a string message.');
pinoRaw.info({name: 'pino-json'}, 'this is a string message.');

pino.info('this is a string message.');
pinoRaw.info('this is a string message.');

output

>node try.js
[2017-10-15T14:01:25.536Z] INFO [pino-json]:
"this is a string message."
{"pid":14533,"name":"try.js","hostname":"192.168.0.102","level":30,"time":1508076085540,"msg":[{"t":0,"o":"this is a string message."}],"name":"pino-json","v":1}
~/Code/hub/pino[master]>node try.js
[2017-10-15T14:04:02.485Z] INFO [pino-json]:
"this is a string message."
{"pid":14593,"name":"try.js","hostname":"192.168.0.102","level":30,"time":1508076242489,"msg":[{"t":0,"o":"this is a string message."}],"name":"pino-json","v":1}
[2017-10-15T14:04:02.489Z] INFO [try.js]:
"this is a string message."
{"pid":14593,"name":"try.js","hostname":"192.168.0.102","level":30,"time":1508076242489,"msg":[{"t":0,"o":"this is a string message."}],"v":1}

all in msg, and all are an object with type

all log elements are with itself type, and as an object, all of them are included msg part like following object type.

{
  "t": [type],
  "o": [output]
}

pino.trace('string message', {obj: true}, 42, 'format = %d', 1);
pinoRaw.trace('string message', {obj: true}, 42, 'format = %d', 1);

output

[2017-10-15T14:19:32.987Z] TRACE [try.js]:
"string message"
{
  "obj": true
}
42
"format = 1"
{"pid":15397,"name":"try.js","hostname":"192.168.0.102","level":10,"time":1508077172987,"msg":[{"t":0,"o":"string message"},{"t":1,"o":{"obj":true}},{"t":4,"o":42},{"t":0,"o":"format = 1"}],"v":1}

now pino-step supports the following types.

module.exports = {
    string: 0,
    object: 1,
    error: 2,
    array: 3,
    number: 4
};

pino.info(['this', 'is', 'an', 'array']);
pinoRaw.info(['this', 'is', 'an', 'array']);

pino.error(new Error('this is an error.'));
pinoRaw.error(new Error('this is an error.'));

output

[2017-10-15T14:32:31.466Z] INFO [try.js]:
[
  "this",
  "is",
  "an",
  "array",
]
{"pid":16034,"name":"try.js","hostname":"192.168.0.102","level":30,"time":1508077951467,"msg":[{"t":3,"o":["this","is","an","array"]}],"v":1}
[2017-10-15T14:32:31.467Z] ERROR [try.js]:
Error: this is an error.
    at Object.<anonymous> (/Users/Jie/Code/hub/pino/try.js:39:12)
    at Module._compile (module.js:624:30)
    at Object.Module._extensions..js (module.js:635:10)
    at Module.load (module.js:545:32)
    at tryModuleLoad (module.js:508:12)
    at Function.Module._load (module.js:500:3)
    at Function.Module.runMain (module.js:665:10)
    at startup (bootstrap_node.js:201:16)
    at bootstrap_node.js:626:3
{"pid":16034,"name":"try.js","hostname":"192.168.0.102","level":50,"time":1508077951467,"msg":[{"t":2,"o":{"msg":"this is an error.","stack":"Error: this is an error.\n    at Object.<anonymous> (/Users/Jie/Code/hub/pino/try.js:40:15)\n    at Module._compile (module.js:624:30)\n    at Object.Module._extensions..js (module.js:635:10)\n    at Module.load (module.js:545:32)\n    at tryModuleLoad (module.js:508:12)\n    at Function.Module._load (module.js:500:3)\n    at Function.Module.runMain (module.js:665:10)\n    at startup (bootstrap_node.js:201:16)\n    at bootstrap_node.js:626:3"}}],"v":1}

more complex object

pino-step supports to record and output more complex object log.

const obj1 = {
    a: 'a',
    b: 1
};
const obj2 = {
    c: ['this', 'is', 'c'],
    d: obj1
};
pino.warn({name: 'object'}, obj1, obj2);
pinoRaw.warn({name: 'object'}, obj1, obj2);

output

[2017-10-15T14:40:58.469Z] WARN [object]:
{
  "a": "a",
  "b": 1
}
{
  "c": [
    "this",
    "is",
    "c"
  ],
  "d": {
    "a": "a",
    "b": 1
  }
}
{"pid":16661,"name":"try.js","hostname":"192.168.0.102","level":40,"time":1508078458469,"msg":[{"t":1,"o":{"a":"a","b":1}},{"t":1,"o":{"c":["this","is","c"],"d":{"a":"a","b":1}}}],"name":"object","v":1}

more arguments

pino-step can take more arguments than 11 that pino takes.

tools.js in pino-step

function genLog (z) {
  return function LOG () {
    var m = arguments[0];
    ...

tools.js in pino

function genLog (z) {
  return function LOG (a, b, c, d, e, f, g, h, i, j, k) {
     var l = 0
     ...

more

pino-step is just a fork of pino, please find more in pino pages.