Configuration result is immutable

[ruud00000]

I would like to run [loadtest][1] (command npx loadtest http://localhost:3000/endpoint) on production server with configuration file .loadtestrc:

{
    I would like to run loadtest (command  npx loadtest http://localhost:3000/endpoint ) on production server with configuration file .loadtestrc:

 
{
    "method": "POST",
    "body": {
        "to": "example@hotmail.com",
        "subject": "Loadtest",
        "text": "Loadtest text"
    },
    "headers": {
        "Content-Type": "application/json",
        "Accept": "application/json"
    },
    "maxRequests": 1,
    "concurrency": 1
   }

but that gives error "Configuration result is immutable".

How can I solve that?

Also tried running this from the command line:

loadtest https://localhost:3000/endpoint -c 1 -n 1 -H Accept:application/json -T application/json -P '{ "to": "example@hotmail.com", "subject": "Loadtest", "text": "Loadtest text" }' -m POST

but that gives the same error.

Also tried running node request-generator.js with content:

import {loadTest} from 'loadtest'

const options = {
    url: 'http://localhost:3000',
    concurrency: 1,
    method: 'POST',
    body:'',
    requestsPerSecond:1,
    maxSeconds:30,
    requestGenerator: (params, options, client, callback) => {
        const message = '{ "to": "example@hotmail.com", "subject": "Loadtest", "text": "Loadtest text" }';
        options.headers['Content-Length'] = message.length;
        options.headers['Content-Type'] = 'application/json';
        options.headers['Accept'] = 'application/json';
        options.body = message;
        options.path = '/send-email';
        const request = client(options, callback);
        request.write(message);
        return request;
    }
};

loadTest(options, (error, result) => {
    if (error) {
        return console.error('Got an error: %s', error);
    }
    console.log(result);
    console.log('Tests run successfully');
});

That also gives the same result.

On the server Ubuntu is running with NGINX.

BTW is this the place for asking for help using loadtest or is there a better place for that?

[alexfernandez]

Hi @ruud00000 ! Sorry for the delay. Yes, this is the right place.

I have tried creating the file .loadtestrc and it's failing for me too. I will fix it. Meanwhile please remove it and configure loadtest using the other options.

[alexfernandez]

Hi again! I just pushed a fix and published as 8.0.9, can you please try and see if it's working for you now? Otherwise I still suggest you remove .loadtestrc and try again.