new relic x k6 test

_webinar-links.md

Webinar Assets

Thanks for attending todays webinar by Simon (@0x12b) and Gary (@gspncr). If you have questions you can use the k6 community or the New Relic Explorers Hub and tag us.

Here are some of the assets we presented or mean to distribute:

• k6 New Relic integration docs
• Medium article summarising findings from k6 with New Relic
• Node workshop demo app
• Node workshop live site
• Get a free New Relic account here
• Get started with k6 for free here

newrelic.js

import http from 'k6/http';

export class NewRel {
  constructor(apiKey, log = false) {
    this.log = log;
    this.params = {
      headers: {
        'Content-Type': 'application/json',
        'API-Key': apiKey,
      },
    };
    this.urls = {
      graphql: 'https://api.newrelic.com/graphql',
    };
  }

  PrintAlertingStatus() {
    let payload = JSON.stringify({
      query: `
      {
        actor {
          entitySearch(query: "name LIKE 'Node Workshop' AND domain IN ('APM')") {
            results {
              entities {
                ... on ApmApplicationEntityOutline {
                    alertSeverity
                }
              }
            }
          }
        }
      }
      `,
    });

    let res = http.post(this.urls.graphql, payload, this.params);

    if (this.log) {
      console.log('New Relic Check HTTP Status is: ' + res.status);
    }

    if (res.status === 200) {
      let body = JSON.parse(res.body);
      var result = body.data.actor.entitySearch.results.entities[0].alertSeverity;
      console.log('New Relic Status: ' + result);
    }
  }

  AppID() {
    
    // From NerdGraph, copy the GraphQL payload from tools > copy as cURL > take the entire {"query"} section
    let payload = JSON.stringify({
      query: `
      {
        actor {
          entitySearch(query: "name LIKE 'Node Workshop' AND domain IN ('APM')") {
            results {
              entities {
                ... on ApmApplicationEntityOutline {
                  applicationId
                }
              }
            }
          }
        }
      }
    `
    });

    let res = http.post(this.urls.graphql, payload, this.params);
    // Check we are not experiencing HTTP 400. If you are, the payload is likely wrong.

    if (this.log) {
      console.log('New Relic Check HTTP Status is: ' + res.status);
    }


    if (res.status === 200) {
      let body = JSON.parse(res.body);
      /* result will depend on the query. This query is built on alertSeverity result. 
       You need to modify the selector if you are performing a different query     */
      var result = JSON.stringify(
        body.data.actor.entitySearch.results.entities[0].applicationId
      );
    } else {
      throw new Error('Could not fetch AppID from New Relic')
    }

    return result;
  }

  //Send a deployment marker with start/end information on load test.
  Notify(testName, state, description, user) {
    var url =
      'https://api.newrelic.com/v2/applications/' + this.AppID() + '/deployments.json';
    console.log(url);

    // From NerdGraph, copy the GraphQL payload from tools > copy as cURL > take the entire {"query"} section
    let payload = JSON.stringify({
      deployment: {
        revision: testName,
        changelog: 'k6 load test ' + state,
        description: description,
        user: user,
      },
    });

    let res = http.post(url, payload, this.params);
    // Check we are not experiencing HTTP 400. If you are, the payload is likely wrong.
    if (![200, 201].includes(res.status)) {
      throw new Error(`Could not notify New Relic about test state (res: ${res.status})`)
    }
    
    return JSON.stringify(res.status);
  }
}

test.js

import { check, sleep } from 'k6';
import { NewRel } from './util/newrelic.js'
import http from 'k6/http';

const apiKey = '<New Relic API Key>'
const nr = new NewRel(apiKey);

export const options = {
  vus: 10,
  duration: '10s',
  tags: {
    testName: 'Tuesdays are for testing',
    user: 'nerd@newrelic.com'
  }
}

export function setup() {  
  nr.PrintAlertingStatus();
  nr.Notify(
    'Sunday load test - short',
    'START',
    'Beginning E2E load test script',
    'gspencer@newrelic.com',
  );
}

export default function () {
  execFrontPage();
  execMathUrl('http://nodeworkshop.eu-west-2.elasticbeanstalk.com/badmaths')
  execMathUrl('http://nodeworkshop.eu-west-2.elasticbeanstalk.com/maths')
  execMathUrl('http://nodeworkshop.eu-west-2.elasticbeanstalk.com/weirdmaths');
  sleep(1);
}

function execFrontPage() {
  const res = http.get(
    'http://nodeworkshop.eu-west-2.elasticbeanstalk.com',
    { type: 'part-of-test' },
  );

  check(res, {
    'was succesful': (r) => r.status == 200,
    'contains the header': (r) => r.body.includes('New Relic Node Workshop')
  })
}

function execMathUrl(url) {
  const res = http.get(url, { type: 'part-of-test' });
  
  return check(res, {
    'was succesful': (r) => r.status === 200,
    'has body': (r) => r.body && r.body != '',
    'returns 10': (r) => parseInt(JSON.parse(r.body).x, 10) === 10
  })
}

export function teardown(data) {
  nr.Notify(
    'Sunday load test - short',
    'END',
    'Finishing E2E load test script',
    'gspencer@newrelic.com'
    );
  nr.PrintAlertingStatus();
}