import JsonRpcClient from '/path/to/jsonrpcclient' class TutoringCalendar extends Component { componentDidMount() { var api = new JsonRpcClient({ endpoint: 'https://url.to/api', headers: { 'X-Token': this.state.token } }) api.request( METHOD_NAME, PARAM_1, PARAM_2, PARAM_3 ).then(function(response) { this.setState({apiResponse: response}) }.bind(this)) // End .then() } // End componentDidMount } // End class