什么是在反应js中进行API调用的正确方法？ [英] what is right way to do API call in react js?

问题描述

我最近从Angular搬到了ReactJs。我正在使用jQuery进行API调用。我有一个API，它返回一个随机用户列表，打印在列表中。

I have recently moved from Angular to ReactJs. I am using jQuery for API calls. I have an API which returns a random user list that is to be printed in a list.

我不知道如何编写我的API调用。这是什么最佳做法？

I am not sure how to write my API calls. What is best practice for this?

我尝试了以下但我没有得到任何输出。如有必要，我愿意实施替代API库。

I tried the following but I am not getting any output. I am open to implementing alternative API libraries if necessary.

以下是我的代码：

import React from 'react';

export default class UserList extends React.Component {    
  constructor(props) {
    super(props);
    this.state = {
      person: []
    };
  }

  UserList(){
    return $.getJSON('https://randomuser.me/api/')
    .then(function(data) {
      return data.results;
    });
  }

  render() {
    this.UserList().then(function(res){
      this.state = {person: res};
    });
    return (
      <div id="layout-content" className="layout-content-wrapper">
        <div className="panel-list">
          {this.state.person.map((item, i) =>{
            return(
              <h1>{item.name.first}</h1>
              <span>{item.cell}, {item.email}</span>
            )
          })}
        <div>
      </div>
    )
  }
}

推荐答案

在这种情况下，您可以在 componentDidMount ，然后更新州

In this case, you can do ajax call inside componentDidMount, and then update state

export default class UserList extends React.Component {
  constructor(props) {
    super(props);

    this.state = {person: []};
  }

  componentDidMount() {
    this.UserList();
  }

  UserList() {
    $.getJSON('https://randomuser.me/api/')
      .then(({ results }) => this.setState({ person: results }));
  }

  render() {
    const persons = this.state.person.map((item, i) => (
      <div>
        <h1>{ item.name.first }</h1>
        <span>{ item.cell }, { item.email }</span>
      </div>
    ));

    return (
      <div id="layout-content" className="layout-content-wrapper">
        <div className="panel-list">{ persons }</div>
      </div>
    );
  }
}

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