Bunyan logger.info error in Restful API - node.js

Question

I'm working on a Restful API and I'm logging all the important steps with bunyan, including the requests. I'm having two problems with logging:
My first problem is that when I log them, all my objects, instead of appearing like independent objects, appear in the msg field, like strings.
Here is my code to log the requests:
var logger = bunyan.createLogger({
name: 'main',
streams: [{
level: 'info',
path: './logs/requests.log'
}]
});
logRequest = function(request){
logger.info("Request started.", {id: request.id}, {method: request.method});
};
and when I see the request.log file it appears like this (I've just added some tabs to make it more comfortable to see) :
{
"name": "logger",
"hostname": "LLAS",
"pid": 7700,
"level": 30,
"msg":"Request started. { id: '1428527975041:LLAS:7700:i898o4l5:10000'{ method:'post' } ",
"time":"2015-04-08T21:19:35.055Z",
"v":0
}
So my problem is that "msg" field, I want to see the "id" and "method" like other fields instead of a string. I.E. :
{
"name": "logger",
"hostname": "LLAS",
"pid": 7700,
"level": 30,
"msg":"Request started.",
"id": '1428527975041:LLAS:7700:i898o4l5:10000',
"method": 'post',
"time":"2015-04-08T21:19:35.055Z",
"v":0
}
How can I solve my problem?
And my second problem is: When I do more than one log in the same file,it writes the JSON in the same line, instead of a new line, like this:
{"name":"logger",...,"v":0}{"name":"logger",...,"v":0}
Instead of this:
{"name":"logger",...,"v":0}
{"name":"logger",...,"v":0}
And I can't work later with those objects in the same line, also it is hard to read and mantain in that way.
Anyone know why is this happening?

Answer 1

My first problem is that when I log them, all my objects, instead of
appearing like independent objects, appear in the "msg" field, like
strings.
That's because you are passing more than one object. You can only pass one object as the first parameter for logging, all other parameters will be considered as msg. From the bunyan source code:
/**
* The functions below log a record at a specific level.
*
* Usages:
* log.<level>() -> boolean is-trace-enabled
* log.<level>(<Error> err, [<string> msg, ...])
* log.<level>(<string> msg, ...)
* log.<level>(<object> fields, <string> msg, ...)
*
* where <level> is the lowercase version of the log level. E.g.:
*
* log.info()
* ....
*/
So if you pass all your parameters in one object, it will work properly:
var request = { id: "abc", method: "GET" }; // dummy request object
logger.info({id: request.id, method: request.method}, "Request started.");
The result is (pretty printed):
{
"name": "main",
"hostname": "Victors-MacBook-Pro.local",
"pid": 2848,
"level": 30,
"id": "abc",
"method": "GET",
"msg": "Request started.",
"time": "2015-04-08T23:25:37.967Z",
"v": 0
}
And my second problem is: When I do more than one log in the same
file,it writes the JSON in the same line, instead of a new line.
Are you on Windows? If you are, maybe the problem is that bunyan may be using the UNIX style carriage return (\n) and not the Windows style (\r\n). Try using a text editor that supports UNIX style carriage returns (like notepad++ or sublime text, for example).