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vite-tsconfig-paths
Give vite
the ability to resolve imports using TypeScript's path mapping.
Usage
-
Install as dev dependency
-
Ensure the project either has "type": "module"
set or that the Vite config is renamed to vite.config.mjs
/ vite.config.mts
depending on whether TypeScript is used
-
Inject vite-tsconfig-paths
in the Vite config
import { defineConfig } from 'vite'
import tsconfigPaths from 'vite-tsconfig-paths'
export default defineConfig({
plugins: [tsconfigPaths()],
})
-
(optional) ⚠️ To enable path resolution in non-TypeScript modules (e.g. .vue
, .svelte
, .mdx
), you must set the allowJs
option to true in your tsconfig.json
file. If that doesn't work, you might need to enable loose: true
to resolve all files. Note that, due to a Vite limitation, CSS files (and CSS dialects) cannot be resolved with this plugin (see #30).
Note: You need to restart Vite when you update your paths
mappings. This is being tracked in #17 (contributions welcome).
Options
-
root: string
The directory to search for tsconfig.json
files.
The default value of this option depends on whether projects
is defined. If it is, then the Vite project root is used. Otherwise, Vite's searchForWorkspaceRoot
function is used.
-
projects: string[]
If you have an esoteric setup, you might need this option to specify where your tsconfig files are located. The paths within are relative to the root
option.
If defined, the root
directory won't be searched for tsconfig files. You should always try using just the root
option first, because this option is more brittle.
-
loose: boolean
Disable strictness that limits path resolution to TypeScript and JavaScript importers.
Useful if you want imports in Vue templates to be resolved, but don't want to use allowJs
in your tsconfig, for example.
In other words, when loose: true
is used, any file that gets transpiled into JavaScript will have its imports resolved by this plugin.
-
parseNative: boolean
Enable use of the tsconfck.parseNative
function, which delegates the loading of tsconfig files to the TypeScript compiler. You'll probably never need this, but I added it just in case.
⚠️ This option can slow down Vite's startup time by as much as
600ms, due to the size of the TypeScript compiler. Only use it when
necessary.
-
ignoreConfigErrors: boolean
When true, parsing errors encountered while loading tsconfig files will be ignored. This is useful if you have a monorepo with multiple tsconfig files, and you don't want to see errors for the ones that aren't relevant to the current project.
-
skip: (dir: string) => boolean
A function that determines which directories to skip when searching for tsconfig.json files. While .git
and node_modules
directories are always skipped, this option allows you to skip additional directories, which is useful in large monorepos to improve performance.
allowJs
If your tsconfig file has "allowJs": true
in it, path resolution will be expanded beyond TypeScript importers. The following extensions will have their imports resolved by this plugin: .vue
, .svelte
, .mdx
, .mjs
, .js
, .jsx
baseUrl
If the baseUrl
is defined, it gets prepended to all bare imports, and its resolution will take precedence over node_modules. This is also how TypeScript does it.
Say the baseUrl
is ../root
and you import react
. This plugin will use ../root/react
if it exists. If not found, then react
is resolved normally. The baseUrl
is relative to the project root (where tsconfig.json
lives).
include/exclude
The include
and exclude
tsconfig options are respected.
Internally, globrex is used for glob matching.
Troubleshooting
The DEBUG
environment variable can be used to figure out why this plugin isn't working as you may have expected.
DEBUG=vite-tsconfig-paths yarn vite
Also, check out the Troubleshooting wiki page for more guidance.