Example of React & Fetch using ES6 syntax.

example-es6-with-fetch-and-bind.js

/*
This is an example of how to properly call `bind` within `fetch` if referencing `this`.
*/

import React from 'react'

class ExampleWithBind extends React.Component {
  constructor(props) {
    super(props);
    this.state = {
      prop_a: ''
    };
  }

  componentDidMount() {
    fetch('example.json', {
      method: 'get'
    }).then(function(response) {
      return response.json()
    }).then(function(response) {
      this.setState({ prop_a: response.prop_a});
    }.bind(this));
  }

  render() {
    return (
      <div>{this.state.prop_a}</div>
    );
  }
}

export default ExampleWithBind;