Cookies - BunDocumentation Index
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Skip to main contentBun home pageWork with cookies in HTTP requests and responses using Bun’s built-in Cookie API.
Bun.serve({
routes: {
"/profile": req => {
// Access cookies from the request
const userId = req.cookies.get("user_id");
const theme = req.cookies.get("theme") || "light";
return Response.json({
userId,
theme,
message: "Profile page",
});
},
},
});
Setting cookies
To set cookies, use the set method on the CookieMap from the BunRequest object.
Bun.serve({
routes: {
"/login": req => {
const cookies = req.cookies;
// Set a cookie with various options
cookies.set("user_id", "12345", {
maxAge: 60 * 60 * 24 * 7, // 1 week
httpOnly: true,
secure: true,
path: "/",
});
// Add a theme preference cookie
cookies.set("theme", "dark");
// Modified cookies from the request are automatically applied to the response
return new Response("Login successful");
},
},
});
Bun.serve() automatically tracks modified cookies from the request and applies them to the response.
Deleting cookies
To delete a cookie, use the delete method on the request.cookies (CookieMap) object:
Bun.serve({
routes: {
"/logout": req => {
// Delete the user_id cookie
req.cookies.delete("user_id", {
path: "/",
});
return new Response("Logged out successfully");
},
},
});
Deleted cookies become a Set-Cookie header on the response with the maxAge set to 0 and an empty value.Was this page helpful?
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- Work with cookies in HTTP requests and responses using Bun