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Node.jsで画像アップロードと表示

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Node.jsで画像アップロードを受けつけるサーバーの続きです。
(ちょっと追加しただけです)

index.htmlserver.jsと同じ階層に作ります。アップロードした画像img.jpegがあります。

index.html
<html>
    <head></head>
    <body>
        <img src="/img.jpeg">
    </body>
</html>

コード

app.use(express.static(__dirname));の部分とres.sendFile()を追加しているくらいです。

server.js
'use strict';

const fs = require('fs');
const express = require('express');
const app = express();
const PORT = process.env.PORT || 3000;
app.use(express.static(__dirname));

//画像表示
app.get('/', (req, res) => res.sendFile('./index.thml'));

//画像アップロードを受け付け
app.post('/', (req, res) => {
    let buffers = [];
    let cnt = 0;

    req.on('data', (chunk) => {
        buffers.push(chunk);
        console.log(++cnt);
    });

    req.on('end', () => {
        console.log(`[done] Image upload`);
        req.rawBody = Buffer.concat(buffers);
        //書き込み
        fs.writeFile('./img.jpeg', req.rawBody, 'utf-8',(err) => {
            if(err) return;
            console.log(`[done] Image save`);
        });
    });
});
 
app.listen(PORT);

実行

$ node server.js

実行して localhost:3000にアクセスすると画像が表示されます。

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