[ FEATURE ] Client Object

[saniyar-dev]

Is your feature request related to a problem? Please describe.
Yes, we want to implement Client object as it's explained in this design document.

Some examples would be:

• Default client used to make requests:

import { Client } from 'k6/x/net/http';

export default async function () {
  const client = new Client();
  const response = await client.get('https://httpbin.test.k6.io/get');
  const jsonData = await response.json();
  console.log(jsonData);
}

• Creating a client with custom transport settings, some HTTP options, and making a POST request:

import { TCP } from 'k6/x/net';
import { Client } from 'k6/x/net/http';

export default async function () {
  const client = new Client({
    dial: async address => {
      return await TCP.open(address, { keepAlive: true });
    },
    proxy: 'https://myproxy',
    headers: { 'User-Agent': 'k6' },  // set some global headers
  });
  await client.post('http://10.0.0.10/post', {
    json: { name: 'k6' }, // automatically adds 'Content-Type: application/json' header
  });
}

• etc.

why we have this issue?

This issue will track the progress of Client object being implemented and it will be updated as we continue to develop new features on it, any further feature requests for Client object should be addressed here too.