Reading a list of categories from the API in a React component

categories-component.js

import React, { Component } from "react";
import config from "./config";
import CategoriesList from "./CategoriesList";

class Categories extends Component {
  constructor(props) {
    super(props);

    this.state = {
      categories: []
    };
  }

  componentWillMount() {
    fetch(config.API_CATEGORIES_URL)
      .then(response => response.json())
      .then(json => this.setState({ categories: json }))
      .catch(() => {
        console.log("An error occured");
      });
  }

  render() {
    return <CategoriesList categories={this.state.categories} />;
  }
}

export default Categories;