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molindo-node-logger
Advanced tools
A node.js logger that integrates well with the Molindo infrastructure.
A Node.js logger that integrates well with the Molindo infrastructure.
stderr
, while all other levels are printed to stdout
.unhandledRejection
errors thrown from promises are logged as well.operationName
in the case of GraphQL requests. Confidential headers like cookie
or authorization
are masked.ERROR
(40000), WARN
(30000), INFO
(20000), DEBUG
(10000), TRACE
(5000).import Logger from 'molindo-node-logger';
const logger = new Logger({ service: 'pizza-shop' });
logger.trace('Making a salami pizza …');
logger.debug('Adding salami …');
logger.info('Putting it in the oven …');
logger.warn("Don't forget to get it out in time …");
logger.error('Oh no, the pizza is burned!');
In production, printed JSON will look like this (except that it's not pretty printed):
{
"service": "pizza-shop",
"@timestamp": "2017-10-19T08:26:13.168Z",
"level": "INFO",
"level_value": 20000,
"message": "Pizza is ready!"
}
If you're running an express server, you can register the logger middleware to
log HTTP requests. GraphQL requests get automatically detected and attached as
meta.graphql
, with properties operationName
and the respective variables
.
import express from 'express';
import Logger, { createLoggerMiddleware } from 'molindo-node-logger';
const server = express();
const logger = new Logger({ service: 'pizza-shop' });
server.use(createLoggerMiddleware({ logger }));
The size of meta.graphql.variables
can sometimes grow too large to log
effectively. To manage this, the createLoggerMiddleware()
function provides a configurable parameter:
maxGraphQLVariablesLength
.
maxGraphQLVariablesLength
maxGraphQLVariablesLength
(default: 512), to set the maximum size of the meta.graphql.variables
payload to be logged.maxGraphQLVariablesLength
to 0
to completely turn off logging for meta.graphql.variables
.maxGraphQLVariablesLength
to -1
to include the complete meta.graphql.variables
payload without size restrictions.FAQs
A node.js logger that integrates well with the Molindo infrastructure.
We found that molindo-node-logger demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 0 open source maintainers collaborating on the project.
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