show number of Comments for Articles

src/App.js

@@ -111,11 +111,33 @@ class App extends React.Component {
     }
   }
 
+  async fetchComments() {
+    try {
+      const { data } = await axios.get(API + '/api/comments')
+      return data
+    } catch (error) {
+      console.log(error)
+      this.setState({ error })
+    }
+  }
+
+  async fetchVotes() {
+    try {
+      const { data } = await axios.get(API + '/api/votes')
+      return data
+    } catch (error) {
+      console.log(error)
+      this.setState({ error })
+    }
+  }
+
   async fetchData() {
     const articles = await this.fetchArticles()
     const tasks = await this.fetchTasks()
     const projects = await this.fetchProjects()
-    await this.setState({ loading: false, articles, tasks, projects })
+    const comments = await this.fetchComments()
+    const votes = await this.fetchVotes()
+    await this.setState({ loading: false, articles, tasks, projects, comments, votes })
   }
 
   componentDidMount() {

src/components/articles.js

@@ -20,6 +20,11 @@ function Articles(props) {
               >
                 {article.title}{' '}
               </button>
+              <button
+                className="btn ml-1 float-right"
+              >
+                {props.comments.map(c => c.articleId === article.id).length} comments
+              </button>
             </li>
           ))}