我正在尝试从React中的Object(API)中提取数据

时间:2018-01-17 02:54:42

标签: javascript reactjs api

我试图在对象上显示页面上的API数据。

我试图在camperlist.js文件中显示CamperList变量中的数据,但是我遇到了麻烦。

我将粘贴我用于检索API的每个文件的代码。

以下是camperlist.js文件中的代码:

import React from 'react';

import CamperListItem from './camper_list_item.js'

//This is where the data is being pulled from VVVV
const CamperList = (props) => {

console.log('these are the datas', props.campers);

return (
  
<div> hello world </div>

  );
}

export default CamperList

在下一个文件中,您将找到正在呈现的“CamperList”组件。

这是App.js文件:

import React, { Component } from 'react';
import logo from './logo.svg';
//import './App.css';
import axios from 'axios';

import CamperList from './camperlist'



export default class App extends Component {
  constructor(props) {
    super(props);
    this.state = {
      recentCampers: [],
      allTimeCampers: [],
      currentView: 'recentCampers'
    }


   }

  componentWillMount() {
     let current = this;
  axios.all([this.fetchRecent(), this.fetchAllTime()]).then(axios.spread(function(recentCampers, allTimeCampers){
    current.setState({ recentCampers, allTimeCampers});
  }));
}


   fetchRecent(){
     return axios.get('https://fcctop100.herokuapp.com/api/fccusers/top/recent')
   }

   fetchAllTime(){
     return axios.get('https://fcctop100.herokuapp.com/api/fccusers/top/alltime')
   }

   changeView(currentView){
     this.setState({currentView})
   }

   render() {
     return (
<div>
<h2> viewing top {this.state.currentView} </h2>
 <button onClick={()=> this.changeView('recentCampers')} className="btn btn-primary"> Recent </button>
 <button onClick={() => this.changeView('allTimeCampers')} className="btn btn-primary"> All Time </button>
<CamperList campers={this.state[this.state.currentView]}/>

 </div>
     );
   }
 }

这是camper_list_item.js文件:

import React from 'react';

const CamperListItem = (props) => {
  return(
  <div> camper item </div>
  );
}

export default CamperListItem

2 个答案:

答案 0 :(得分:0)

您是否能够成功收到您的请求?

因为看了你的代码。它只会显示hello world

您应该更改CamperList组件,以显示您的请求。

import React from 'react';

import CamperListItem from './camper_list_item.js'

//This is where the data is being pulled from VVVV
const CamperList = (props) => {

  return (
    <div>
      {props.campers.map(c => {
        return <div key={c.username}>{c.username}</div>
      }}
    </div>
  );
}

export default CamperList

答案 1 :(得分:0)

在循环浏览CamperListItem中的campers道具后,您可以返回CamperList组件。

import React from 'react';

import CamperListItem from './camper_list_item.js'

const CamperList = (props) => {
  return (
    <div>
      {
        props.campers.map((camper, i) => {
          return <CamperListItem camper={camper} key={i} />
        }
      }
    </div>
  );
}

export default CamperList;

这里我举例说明了使用CamperListItem赋予的道具的一个例子:

import React from 'react';

const CamperListItem = (props) => {
  return(
  <div>{props.camper.name}</div>
  );
}

export default CamperListItem