"如何在 ReactJS 中使用 axios 从 json 数据（api）中获取特定数据"

Question

I want to get a Image with spesific Text in caption from Instagram graph api.For example if caption from image has "yes" word in Instagram then must show in homepage.The problem is i know i cant write if promises in axios or maybe i dont know how to write this rule.thank you for your help.

 import React from 'react' import '../styles/home.css' import axios from 'axios'; export default class Home extends React.Component { state = { posts: [] } componentDidMount() { axios.get(`https://graph.instagram.com/me/media?fields=id,caption,media_url,permalink,username&access_token=IGQ....`) .then(res => { const posts = res.data.data; this.setState({ posts }); }) } render() { return ( <div> { this.state.posts .map(post => <div className="banner_image"> <img className="post_img" key={post.id} src={post.media_url} alt="image"/> <div className="banner_text"> <div className="banner_content"> { this.state.posts .map(post => <h1 className="main_title" key={post.id}>{post.username}</h1> ) } {this.state.posts .map(post => <h3 className="main_caption" key={post.id}>{post.caption}</h3> ) } </div> </div> </div> ) } { this.state.posts .map(post => <img className="post_img_food" key={post.id} src={post.media_url} alt="image"/> ) } </div> ) } }

Answer 1

You could try .indexOf and make a if statement that finds the string "yes" if its there it will display that picture if not elif or end.

Answer 2

You can use RegExp (Regular expression) Or ES6 built in function like . include (),.search() to check if yes found in caption then use ternary operator .

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