feat: auto-generate AppAuthClient type

Author: onmax

docs/app/components/content/landing/hero.yml

@@ -37,8 +37,6 @@ tabs:
           plugins: [adminClient(), twoFactorClient()],
         })
       }
-
-      export type AppAuthClient = ReturnType<typeof createAppAuthClient>
   - name: app/pages/login.vue
     code: |
       <script setup lang="ts">

docs/content/1.getting-started/4.client-setup.md

@@ -20,9 +20,6 @@ export function createAppAuthClient(baseURL: string) {
     plugins: []
   })
 }
-
-// Export type for auto-inference
-export type AppAuthClient = ReturnType<typeof createAppAuthClient>
 ```
 
 ::callout{icon="i-lucide-info"}

playground/app/auth.client.ts

@@ -8,5 +8,3 @@ export function createAppAuthClient(baseURL: string) {
     plugins: [adminClient(), passkeyClient()],
   })
 }
-
-export type AppAuthClient = ReturnType<typeof createAppAuthClient>

src/module.ts

@@ -116,6 +116,16 @@ declare module '#nuxt-better-auth' {
 `,
     })
 
+    addTypeTemplate({
+      filename: 'types/nuxt-better-auth-client.d.ts',
+      getContents: () => `
+import type { createAppAuthClient } from '${clientConfigPath}'
+declare module '#nuxt-better-auth' {
+  export type AppAuthClient = ReturnType<typeof createAppAuthClient>
+}
+`,
+    })
+
     addTypeTemplate({
       filename: 'types/nuxt-better-auth-nitro.d.ts',
       getContents: () => `
@@ -129,7 +139,7 @@ declare module 'nitropack/types' {
 
     // HMR
     nuxt.hook('builder:watch', async (_event, relativePath) => {
-      if (relativePath.includes('auth.config')) {
+      if (relativePath.includes('auth.config') || relativePath.includes('auth.client')) {
         await updateTemplates({ filter: t => t.filename.includes('nuxt-better-auth') })
       }
     })

src/runtime/app/composables/useUserSession.ts

@@ -1,5 +1,4 @@
-import type { AppAuthClient } from '#auth/client'
-import type { AuthSession, AuthUser } from '#nuxt-better-auth'
+import type { AppAuthClient, AuthSession, AuthUser } from '#nuxt-better-auth'
 import { createAppAuthClient } from '#auth/client'
 import { computed, useRequestHeaders, useRuntimeConfig, useState, watch } from '#imports'
 import { consola } from 'consola'

test/fixtures/basic/app/auth.client.ts

@@ -3,5 +3,3 @@ import { createAuthClient } from 'better-auth/vue'
 export function createAppAuthClient(baseURL: string) {
   return createAuthClient({ baseURL })
 }
-
-export type AppAuthClient = ReturnType<typeof createAppAuthClient>

test/fixtures/dbless/app/auth.client.ts

@@ -3,5 +3,3 @@ import { createAuthClient } from 'better-auth/vue'
 export function createAppAuthClient(baseURL: string) {
   return createAuthClient({ baseURL })
 }
-
-export type AppAuthClient = ReturnType<typeof createAppAuthClient>