如何使用react从github API获取用户仓库？

Question

I have a react app that searches the github for users using github api. I have the part that searches for users working fine, but when I add in a component to display the user's repo as well, it just displays the user info only and the console gives this error: Uncaught (in promise) TypeError: Cannot read property 'value' of undefined

Here is my code:

    class GitHubSearch extends React.Component {
       constructor(props){ 
         super(props); 
          this.state = { 
           username: '',
           userrepo: '',
          };
       }

       getUser(username) {
          return fetch(`https://api.github.com/users/${username}`)
          .then(response => response.json())
          .then(response => {
            return response;
           })
      }

       getUserRepo(userrepo) {
         return fetch(`https://api.github.com/users/${username}/repos`)
         .then(response => response.json())
         .then(response => {
          return response;
        })
      }

       async handleSubmit(e) {
           e.preventDefault();
           let user = await this.getUser(this.refs.username.value);
           this.setState({ avatar_url: user.avatar_url,
           username: user.login,
           followers: user.followers,
           following: user.following,
            url: user.url,
       });

     let repo = await this.getUserRepo(this.refs.userrepo.value);
        this.setState({ name: repo.name,
        description: repo.description,
        git_url: repo.git_url,
        stargazers_count: repo.stargazers_count,
        forks_count: repo.forks_count,
        open_issues_count: repo.open_issues_count,
        size: repo.size,

     })

  }

     render() {
       let user;
       if(this.state.username) {
          user = 
          <div className="resultBadge">
            <img src={this.state.avatar_url}/>
            <p className="userInfo">
             Username: <br/>
             {this.state.username} 
            </p> 
            <p className="followerInfo">
             {this.state.followers} Followers
            </p>
            <p className="followingInfo">
              Following {this.state.following} users
            </p>
          </div>
      }

      let repo;
        if(this.state.userrepo) {
           repo =
             <div className="repoResults">
                <p>
                  {this.state.name}
               </p>
             </div>
         }

           return (
              <div className="GitHubSearch">
                <header className="Search-header">
                  <h1>Github User Search </h1>
                </header>
                <form onSubmit={e => this.handleSubmit(e)}>
                   <input ref='username' type='text' placeholder='username' />
               </form>
               <p className="Search-intro">
                  {user}
               </p>
      <p>
        {repo}
       </p>
      </div>
   );
 }
}


ReactDOM.render(<GitHubSearch/>, document.getElementById('container'));

The HTML is:

Is there something missing here?

Answer 1

Actually, you don't have userrepo ref.

Probably, you should use the same ref to get repos because your getUserRepo gets username property and not name of repository.

So your getUserRepo function should looks like this:

let repo = await this.getUserRepo(this.refs.username.value);
        this.setState({ name: repo.name,
        description: repo.description,
        git_url: repo.git_url,
        stargazers_count: repo.stargazers_count,
        forks_count: repo.forks_count,
        open_issues_count: repo.open_issues_count,
        size: repo.size,

     })