title: React Native getting response 400 when post to oauth/token using laravel passport
body: <p>I am trying to login through oauth/tokens from my React Native project. I have tested with POSTMAN When i send the data from axios it works well. But when i try to send from my app it gives me <strong>Error: Request failed with status code 400</strong>
  my code is :</p>
  
  <pre><code>axios({
  method: 'post',
  url: 'http://183.172.100.84:8000/oauth/token',
  headers: { 
      'Accept': 'application/json',
          'Content-Type': 'application/x-www-form-urlencoded; charset=utf-8'
  },
  data: {
      client_id : '2',
      client_secret : 'secret',
      grant_type : 'password',
      email : this.state.userEmail,
      password : this.state.userPassword
  }
  })
  .then((response) =&gt; {
  console.log(response.data);
  })
  </code></pre>