axios GET request function export/ import in react

How do I export axios get request from separate .js file so I can use it in my main.js by importing i.e:

import { getNewQuote }  from './api'

class App extends Component {

  constructor () {
    super();
    this.state = {
      quote: []
    }
    this.handleNewQuote = this.handleNewQuote.bind(this);
  }
  componentDidMount() {
    getNewQuote();
  }

  handleNewQuote() {
    getNewQuote();
  }
   ...

My api.js looks like this:

export function getNewQuote(){
    axios.defaults.baseURL = 'https://andruxnet-random-famous-quotes.p.mashape.com';
    axios.defaults.headers.common['X-Mashape-Key'] = "MY-API-KEY";
    axios.get('/?cat=famous&count=1')
      .then(res => {
        this.setState({ quote: res.data })
      })
      .catch(error => {
        console.log(error)
      })
}

With this setup I'm getting an error in console:

TypeError: Cannot read property 'setState' of undefined at api.js:8 at

I assume the issue is with:

axios getNewQuote export or getNewQuote call in componentDidMount

Any help?