React

by WILLIAM CORREA

HTML

<div id="app"></div>

CSS

body {
  background: #20262E;
  padding: 20px;
  font-family: Helvetica;
}

#app {
  background: #fff;
  border-radius: 4px;
  padding: 20px;
  transition: all 0.2s;
}

li {
  margin: 8px 0;
}

h2 {
  font-weight: bold;
  margin-bottom: 15px;
}

.done {
  color: rgba(0, 0, 0, 0.3);
  text-decoration: line-through;
}

input {
  margin-right: 5px;
}

React

class TodoApp extends React.Component {
  constructor(props) {
    super(props)
    this.state = {
    	items: []
    }
  }
  
  
  componentDidMount() {
    this.refresh()
  }
  
  refresh() {
    fetch('http://localhost:8080/api/todos')
      .then((response) => response.json())
      .then((items)=>{
        this.setState({items})
      })
  }

  render() {
    const refresh = this.refresh
    return (
      <div>
        <div>
          <button onClick={refresh}>
            Recarregar
          </button>
        </div>
        <h2>Todos:</h2>
        <ol>
        {this.state.items.map(item => (
          <li key={item.id}>
            <label>
              <input type="checkbox" checked={item.completed} /> 
              <span className={item.completed ? "done" : ""}>{item.description}</span>
            </label>
          </li>
        ))}
        </ol>
      </div>
    )
  }
}

ReactDOM.render(<TodoApp />, document.querySelector("#app"))