diff --git a/en/guide/migrating-5.md b/en/guide/migrating-5.md index 0318be4d2..4c35ccd7b 100755 --- a/en/guide/migrating-5.md +++ b/en/guide/migrating-5.md @@ -117,7 +117,7 @@ Express 5 no longer supports the signature `res.send(obj, status)`. Instead, set

res.send(status)

-Express 5 no longer supports the signature res.send(status), where _`status`_ is a number. Instead, use the `res.sendStatus(statusCode)` function, which sets the HTTP response header status code and sends the text version of the code: "Not Found", "Internal Server Error", and so on. +Express 5 no longer supports the signature `res.send(status)`, where `status` is a number. Instead, use the `res.sendStatus(statusCode)` function, which sets the HTTP response header status code and sends the text version of the code: "Not Found", "Internal Server Error", and so on. If you need to send a number by using the `res.send()` function, quote the number to convert it to a string, so that Express does not interpret it as an attempt to use the unsupported old signature.

res.sendfile()

@@ -130,14 +130,23 @@ The `res.sendfile()` function has been replaced by a camel-cased version `res.se Path route matching syntax is when a string is supplied as the first parameter to the `app.all()`, `app.use()`, `app.METHOD()`, `router.all()`, `router.METHOD()`, and `router.use()` APIs. The following changes have been made to how the path string is matched to an incoming request: -- Add new `?`, `*`, and `+` parameter modifiers. For example `/users/:user+` now matches `/users/1`, `/users/1/2`, etc. but not `/users`. -- The special `*` path segment behavior has been removed. This means that `*` is no longer a valid path and `/foo/*/bar` now matches a literal `'*'`. For the previous behaviour, a `(.*)` matching group should be used instead. -- Named matching groups no longer available by position in `req.params`. For example, `/:foo(.*)` only captures as `req.params.foo` and not available as `req.params[0]`. -- Regular expressions can now only be used in a matching group. For example, `/users/\\d+` is invalid and should be written as `/users/(\\d+))`. -- It is now possible to use named capturing groups in paths using `RegExp`, for example `/\/(?.+)/` would result in `req.params.group` being populated. -- Custom prefix and suffix groups are now supported using `{}`, for example `/:entity{-:action}?` would match `/user` and `/user-delete`. -- Unbalanced patterns now produce an error. For example `/test(foo` previously worked, but now the opening parenthesis `(` must be escaped to match the previous behavior: `/test\\(foo`. -- As with parentheses, curly brackets also require escaping. That is, `/user{:id}` no longer matches `/user{42}` as before unless written as `/user\\{:id\\}`. +- The wildcard `*` must have a name, matching the behavior of parameters `:`, use `/*splat` instead of `/*` +- The optional character `?` is no longer supported, use braces instead: `/:file{.:ext}`. +- Regexp characters are not supported. For example: +```js +app.get('/[discussion|page]/:slug', async (req, res) => { + res.status(200).send("ok") +}) +``` +should be changed to: +```js +app.get(['/discussion/:slug', '/page/:slug'], async (req, res) => { + res.status(200).send("ok") +}) +``` + +- Some characters have been reserved to avoid confusion during upgrade (`()[]?+!`), use `\` to escape them. +- Parameter names now support valid JavaScript identifiers, or quoted like `:"this"`.

Rejected promises handled from middleware and handlers

@@ -185,4 +194,4 @@ This method now enforces asynchronous behavior for all view engines, avoiding bu

Brotli encoding support

-Express 5 supports Brotli encoding for requests.. \ No newline at end of file +Express 5 supports Brotli encoding for requests received from clients that support it. \ No newline at end of file