logfmt

node-logfmt

install

npm install logfmt

use

straight up

var logfmt = require('logfmt');

logfmt.parse("foo=bar a=14 baz=\"hello kitty\" cool%story=bro f %^asdf code=H12")
//=>{ "foo": "bar", "a": 14, "baz": "hello kitty", "cool%story": "bro", "f": true, "%^asdf": true, "code" : "H12" }

express middleware

var logfmt   = require('logfmt').body_parser;

app.use(logfmt());

// req.body is now an array of objects
app.post('/logs', function(req, res){

  console.log('BODY: ' + JSON.stringify(req.body));

  req.body.forEach(function(data){
    console.log(data);
  });

  res.send('OK');
})

app.listen(3000)

test it:

curl -X POST --header 'Content-Type: application/logplex-1' -d "foo=bar a=14 baz=\"hello kitty\" cool%story=bro f %^asdf" http://localhost:3000/logs

command line

echo "foo=bar a=14 baz=\"hello kitty\" cool%story=bro f %^asdf" | logfmt
{ "foo": "bar", "a": 14, "baz": "hello kitty", "cool%story": "bro", "f": true, "%^asdf": true }

caveats

I use a regex and haven't optimized much for performance yet.