add update page component

src/App.js

@@ -3,6 +3,7 @@ import firebase from "./firebase";
 import { AddArticle } from "./pages/add_article";
 import IndexArticle from "./pages/index_article";
 import ShowArticle from "./pages/show_article";
+import UpdateArticle from "./pages/update_article";
 import { getPrivateMessage } from "./api";
 import { useState, useEffect } from "react";
 import { BrowserRouter as Router, Route, Link } from "react-router-dom";

src/pages/update_article.js

@@ -0,0 +1,29 @@
+import React from "react";
+import { useState, useEffect } from "react";
+import { getArticle } from "../api";
+
+const UpdateArticle = props => {
+  const [article, setArticle] = useState({});
+  const [title, setTitle] = useState("")
+  const [body, setBody] = useState("")
+
+  useEffect(() => {
+    const id = props.p.match.params.id;
+
+    getArticle(id).then(resp => {
+      setArticle(resp.Article);
+      setTitle(resp.Article.title)
+      setBody(resp.Article.body);
+    });
+  }, []);
+
+  return (
+    <div>
+      <input type="text" value={title} onChange={(e) => setTitle(e.target.value)}/>
+      <textarea value={body} onChange={(e) => setBody(e.target.value)} />
+      <input type="submit" />
+    </div>
+  );
+};
+
+export default UpdateArticle;