I have a very basic express app. I added winston without any configuration. I create log messages like this:
require('winston').info('App started');
and all log messages go into app.out.log. When I vi into the file I see
info: App started
so default logging using winston seems to work fine. Now I want to use the query api of winston:
require('winston').query({}, function(err, results) {
if (err) {
res.status(400).json(err);
} else {
res.json(results);
}
});
But results is empty. The doc says:
Winston supports querying of logs with Loggly-like options. See Loggly Search API. Specifically: File, Couchdb, Redis, Loggly, Nssocket, and Http.
and since the default transport is File I would expect results to be not empty. Any ideas whats wrong?
By default, Winston uses only ConsoleTransport. So if you want to query a log file, you have to add proper Transport (in this example is used file transport).
There is a little example:
var winston = require('winston');
winston.add(winston.transports.File, { filename: 'app.out.log' });
winston.info('App started');
winston.query({}, function(err, results) {
if (err) {
res.status(400).json(err);
} else {
res.json(results);
}
});
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