In the Hello World example we used the c.text() method to send a simple string as a response, and to close the connection:
(c) => c.text('Hello, World!')
This sets the Content-Type header to text/html, and sends the string passed in as parameter.
After this, Hono closes the connection.
You can use c.json() to parse an object or array into JSON and set the application/json Content-Type header.
app.get('/', (c) => c.json({ test: true }))
Using c.html() you can pass an HTML string and that’s sent using the Content-Type header text/html.
app.get('/', (c) => {
c.html(`
<html>
<head>
<title>test</title>
</head>
<body>
<h1>test</h1>
<p>test</p>
</body>
</html>
`)
})
The browser will correctly render the HTML:
Since we used a template literal (using backticks), we can also interpolate data:
app.get('/', (c) => {
const numbers = ['one', 'two', 'three']
return c.html(`
<html>
<head>
<title>test</title>
</head>
<body>
<h1>test</h1>
${numbers.map((num) => '<p>' + num + '</p>').join('\n')}
</body>
</html>
`)
})
Anyway we’ll see a better way of creating HTML later when I’ll show you how to use JSX in Hono.
Set the HTTP response status
You can return a 404 response by returning c.notFound().
Otherwise you use c.status() passing 404: c.status(404)
Lessons in this unit:
| 0: | Introduction |
| 1: | Your first Hono app |
| 2: | The Request object |
| 3: | ▶︎ Send a response to the client |
| 4: | Manage cookies |
| 5: | Work with HTTP headers |
| 6: | Handling redirects |
| 7: | Routing |
| 8: | JSX templates |
| 9: | Middleware |
| 10: | Hono on Node.js |