My Axios module

Model.js

import axios from "axios";
import qs from 'qs';

export default class Model {
  constructor(modelName) {
    this.modelName = modelName;
    const instance = axios.create({
      baseURL: 'http://127.0.0.1/api/',
      timeout: 1000,
      headers: {'X-Custom-Header': 'foobar'},
      params: {
        ID: 12345
      },
      paramsSerializer: function (params) {
        return qs.stringify(params, {arrayFormat: 'brackets'})
      },
    });

  }
}