const { addLayout, configure, getLogger } = require('log4js');
const log4json = require('log4json');
addLayout('log4json', log4json);
configure({
appenders: {
log4json: {
type: 'console',
layout: {
type: 'log4json',
separator: ' | ',
space: 2,
omitDefaultCategory: false,
props: {
ts: '@timestamp',
level: 'lvl',
category: 'cat', // default category will be omitted unless "omitDefaultCategory" is false
stack: 'error', // only available when an error object is being logged
message: 'context',
callStack: 'stack', // only available when "enableCallStack" is true
}
}
}
},
categories: {
default: {
appenders: ['log4json'],
level: 'all',
enableCallStack: true
}
}
});
const logger = getLogger('fancy-category');
logger.debug('string logs', 'another string log', {customProp: ['also listed', true]}, 'yet another string');
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