mirror of
https://github.com/nuxt/nuxt.git
synced 2024-11-23 14:15:13 +00:00
3ec108493d
* docs: simplify docs to only markdown * Create nuxt-config.md * chore: update * chore: add readme
70 lines
1.6 KiB
Markdown
70 lines
1.6 KiB
Markdown
---
|
||
title: "abortNavigation"
|
||
---
|
||
|
||
# `abortNavigation`
|
||
|
||
`abortNavigation` is a helper function that prevents navigation from taking place and throws an error if one is set as a parameter.
|
||
|
||
::alert{type="warning"}
|
||
`abortNavigation` is only usable inside a [route middleware handler](/docs/guide/directory-structure/middleware).
|
||
::
|
||
|
||
## Type
|
||
|
||
```ts
|
||
abortNavigation(err?: Error | string): false
|
||
```
|
||
|
||
## Parameters
|
||
|
||
### `err`
|
||
|
||
- **Type**: [`Error`](https://developer.mozilla.org/pl/docs/Web/JavaScript/Reference/Global_Objects/Error) | `string`
|
||
|
||
Optional error to be thrown by `abortNavigation`.
|
||
|
||
## Examples
|
||
|
||
The example below shows how you can use `abortNavigation` in a route middleware to prevent unauthorized route access:
|
||
|
||
```ts [middleware/auth.ts]
|
||
export default defineNuxtRouteMiddleware((to, from) => {
|
||
const user = useState('user')
|
||
|
||
if (!user.value.isAuthorized) {
|
||
return abortNavigation()
|
||
}
|
||
|
||
return navigateTo('/edit-post')
|
||
})
|
||
```
|
||
|
||
### `err` as a String
|
||
|
||
You can pass the error as a string:
|
||
|
||
```ts [middleware/auth.ts]
|
||
export default defineNuxtRouteMiddleware((to, from) => {
|
||
const auth = useState('auth')
|
||
|
||
if (!user.value.isAuthorized) {
|
||
abortNavigation('Insufficient permissions.')
|
||
}
|
||
})
|
||
```
|
||
|
||
### `err` as an Error Object
|
||
|
||
You can pass the error as an [`Error`](https://developer.mozilla.org/pl/docs/Web/JavaScript/Reference/Global_Objects/Error) object, e.g. caught by the `catch`-block:
|
||
|
||
```ts [middleware/auth.ts]
|
||
export default defineNuxtRouteMiddleware((to, from) => {
|
||
try {
|
||
/* code that might throw an error */
|
||
} catch (err) {
|
||
abortNavigation(err)
|
||
}
|
||
})
|
||
```
|