Neighbor's Preppy Maltese

    @ovotech/influx-metrics-tracker
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    1.3.5 • Public • Published

    Influx Metrics Tracker

    Track metrics and store them in an Influx database, with secondary logging if Influx is unavailable or invalid input is provided.

    Using

    yarn add @ovotech/influx-metrics-tracker
    import { createInfluxConnection, MetricsTracker } from '@ovotech/influx-metrics-tracker';
    import { Logger } from '@ovotech/winston-logger';
    import { InfluxDB, ISingleHostConfig } from 'influx';
    import * as winston from 'winston';
    
    // Define a specific tracker
    class PerformanceMetricsTracker extends MetricsTracker {
      private static queryTimeMeasurementName = 'query-time';
    
      async trackQueryTime(timeMs: number, queryName: string) {
        await this.trackPoint(
          PerformanceMetricsTracker.queryTimeMeasurementName,
          { queryName },
          { timeMs: Math.round(timeMs) },
        );
      }
    }
    
    // Create Logger and Influx instances
    const winstonLogger = winston.createLogger(...);
    const logger = new Logger(winstonLogger, { traceToken: req.headers['X-Trace-Token'] });
    const influx = createInfluxConnection(process.env);
    
    // Create the tracker
    const metricsMeta = {
      extraTagName: 'some-value',
    };
    const tracker = new PerformanceMetricsTracker(influx, logger, metricsMeta);
    
    // Track a point
    await tracker.trackQueryTime(12.34, 'myFirstQuery')

    As well as a base class that allows you to define custom trackers, there are pre-defined trackers for common operations. These allow services to use a common interface and not re-implement the same functionality.

    • ExternalRequestMetricsTracker - track information about calling other services
    • KafkaMetricsTracker - track actions around the lifecycle of Kafka events
    • ResponseMetricsTracker - track information about responses from an API

    Running the tests

    Then you can run the tests with:

    yarn test

    Coding style (linting, etc) tests

    Style is maintained with prettier and tslint

    yarn lint
    

    Deployment

    Deployment is preferment by lerna automatically on merge / push to master, but you'll need to bump the package version numbers yourself. Only updated packages with newer versions will be pushed to the npm registry.

    Contributing

    Have a bug? File an issue with a simple example that reproduces this so we can take a look & confirm.

    Want to make a change? Submit a PR, explain why it's useful, and make sure you've updated the docs (this file) and the tests (see test folder).

    License

    This project is licensed under Apache 2 - see the LICENSE file for details

    Keywords

    none

    Install

    npm i @ovotech/influx-metrics-tracker

    DownloadsWeekly Downloads

    60

    Version

    1.3.5

    License

    Apache-2.0

    Unpacked Size

    32.4 kB

    Total Files

    31

    Last publish

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