Load testing

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Overview

Use load testing to ensure that your Blnk deployment can handle expected traffic and maintain performance under various conditions. This is a critical step in setting up your Blnk server.

Blnk use k6, a modern loading testing tool to manage this process. This guide will walk you through setting up and running a load test on your Blnk server using k6 with insights from a sample test result to help you understand and interpret your data.

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Before you start

Make sure you have:

1. Cloned the Blnk repository to your local machine;
2. Docker and Docker Compose installed, for running the Blnk server;
3. k6 installed on your machine. Visit k6.io for installation instructions.

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Set up your load test

git clone https://github.com/jerry-enebeli/Blnk && cd Blnk

cd tests/loadtest

import http from "k6/http";
import { uuidv4 } from 'https://jslib.k6.io/k6-utils/1.4.0/index.js';
import { check, sleep } from "k6";

export const options = {
    vus: 5,
    duration: '30s',
};

export default function () {
    const url = 'http://localhost:5001/transactions';
    const payload = JSON.stringify({
        "amount": 100,
        "allow_over_draft": true,
        "reference": uuidv4(),
        "currency": "USD",
        "source": "@cash",
        "destination": "@interests"
    });

    const params = {
        headers: {
            'Content-Type': 'application/json',
        },
    };

    let response = http.post(url, payload, params);
    check(response, {
        'is status 201': r => r.status === 201,
    });
}

k6 run script.js

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Need help?

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