问如何在react中使用google翻译api

EN

route.post('/', (req, res) => {
    var q = req.body.q;
    console.log(q);
  var options = { method: 'POST',
  url: 'https://translation.googleapis.com/language/translate/v2',
  form: 
   { key: process.env.TRANSLATE,
     q: q,
     target: 'en' } };
    request(options, function (error, response, body) {
    if (error) throw new Error(error);
    console.log(body);
    res.send(body);
    });
})

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

    this.state = {
      value: '',
      translated: '...'
    }
    this.translate=this.translate.bind(this);
  }

  translate(){
    axios.post('http://localhost:9000/translate',{q:this.state.value})
    .then(data => {
      this.setState({translated: data.data.data.translations[0].translatedText})
      console.log(data.data.data.translations[0].translatedText)
    }).catch(err => {
      console.log('error')
    })
  }



  render() {
    return (
      <div>
        <input 
          value={this.state.value}
          onChange={(e)=>this.setState({value: e.target.value})}
          type="text"/>
        <button onClick={this.translate}>Submit</button>
        <h1>{this.state.translated}</h1>
      </div>

    );
  }
}

export default App;

let fromLang = 'en';
let toLang = 'no'' // translate to norwegian
let text = 'something to translate';

const API_KEY = [YOUR_API_KEY];

let url = `https://translation.googleapis.com/language/translate/v2?key=${API_KEY}`;
url += '&q=' + encodeURI(text);
url += `&source=${fromLang}`;
url += `&target=${toLang}`;

fetch(url, { 
  method: 'GET',
  headers: {
    "Content-Type": "application/json",
    Accept: "application/json"
  }
})
.then(res => res.json())
.then((response) => {
  console.log("response from google: ", response);
})
.catch(error => {
  console.log("There was an error with the translation request: ", error);
});

    import React from 'react'

    export default class Translate extends React.Component{

      constructor(props){

        super(props)

        this.state={

          greeting:'I say: "Hello, you all!"',
          greeting_in_user_language: null

        }

        this.userLanguage = navigator.language.slice(0,2)
        this.API_KEY = 'YOUR_API_KEY'
        this.URL = `https://translation.googleapis.com/language/translate/v2?key=${this.API_KEY}&source=en`
        this.URL += `&target=${this.userLanguage}`

      }
      componentWillMount() {

        this.translate( 'greeting_in_user_language', '&q=' + encodeURI(this.state.greeting))

      }

      translate = (key,string_to_translate) => {


        fetch(this.URL+string_to_translate)
          .then(res => res.json())
          .then(
            ( res ) => { 
              let text = res.data.translations[0].translatedText.replace(/(&quot\;)/g,"\"")
              this.setState({[key]:text})
            }      
          ) .catch(
              ( error ) => { 
                console.log("There was an error: ", error); 
              }
            )
      }

      render() {
        return(
          <>
          <section className="page">
            <p>{
             this.state.greeting_in_user_language ?  
                this.state.greeting_in_user_language : 
                this.state.greeting
            }</p>
          </section>
          </>
        )
      }
     }