762a240890
- Log system revamp: - Logs to stdout, disabled while testing - Use header `X-Request-Id`, or create a new `uuid` when no present, to identyfy log entries - Be able to set log level from env variable `LOG_LEVEL`, useful while testing: `LOG_LEVEL=info npm test`; even more human-readable: `LOG_LEVEL=info npm t | ./node_modules/.bin/pino-pretty` - Be able to reduce the footprint in the final log file depending on the environment - Use one logger for every service: Queries, Batch Queries (Jobs), and Data Ingestion (CopyTo/CopyFrom) - Stop using headers such as: `X-SQL-API-Log`, `X-SQL-API-Profiler`, and `X-SQL-API-Errors` as a way to log info. - Be able to tag requests with labels as an easier way to provide business metrics - Metro: Add log-collector utility (`metro`), it will be moved to its own repository. Attaching it here fro development purposes. Try it with the following command `LOG_LEVEL=info npm t | node metro` - Metro: Creates `metrics-collector.js` a stream to update Prometheus' counters and histograms and exposes them via Express' app (`:9145/metrics`). Use the ones defined in `grok_exporter` Announcements: - Profiler is always set. No need to check its existence anymore - Unify profiler usage for every endpoint Bug fixes: - Avoid hung requests while fetching user identifier
61 lines
1.6 KiB
JavaScript
61 lines
1.6 KiB
JavaScript
'use strict';
|
|
|
|
const pino = require('pino');
|
|
const { req: requestSerializer, res: responseSerializer, err, wrapErrorSerializer } = pino.stdSerializers;
|
|
const DEV_ENVS = ['test', 'development'];
|
|
|
|
module.exports = class Logger {
|
|
constructor () {
|
|
const { LOG_LEVEL, NODE_ENV } = process.env;
|
|
const logLevelFromNodeEnv = NODE_ENV === 'test' ? 'fatal' : 'info';
|
|
const errorSerializer = DEV_ENVS.includes(NODE_ENV) ? err : wrapErrorSerializer(err => {
|
|
err.stack = err.stack.split('\n').slice(0, 3).join('\n');
|
|
return err;
|
|
});
|
|
const options = {
|
|
base: null, // Do not bind hostname, pid and friends by default
|
|
level: LOG_LEVEL || logLevelFromNodeEnv,
|
|
serializers: {
|
|
request: requestSerializer,
|
|
response: responseSerializer,
|
|
error: (error) => Array.isArray(error) ? error.map((err) => errorSerializer(err)) : [errorSerializer(error)]
|
|
}
|
|
};
|
|
const dest = pino.destination({ sync: false }); // stdout
|
|
|
|
this._logger = pino(options, dest);
|
|
}
|
|
|
|
trace (...args) {
|
|
this._logger.trace(...args);
|
|
}
|
|
|
|
debug (...args) {
|
|
this._logger.debug(...args);
|
|
}
|
|
|
|
info (...args) {
|
|
this._logger.info(...args);
|
|
}
|
|
|
|
warn (...args) {
|
|
this._logger.warn(...args);
|
|
}
|
|
|
|
error (...args) {
|
|
this._logger.error(...args);
|
|
}
|
|
|
|
fatal (...args) {
|
|
this._logger.fatal(...args);
|
|
}
|
|
|
|
child (...args) {
|
|
return this._logger.child(...args);
|
|
}
|
|
|
|
finish (callback) {
|
|
return pino.final(this._logger, callback);
|
|
}
|
|
};
|