"external_defu_default(...) is not a function" when defining axios create method in plugin

[Tcharlyson]

Environment

---

• Operating System: Darwin
• Node Version: v14.19.3
• Nuxt Version: 2.16.0-27616340.013f051b
• Package Manager: [email protected]
• Builder: webpack
• User Config: head, ssr, css, plugins, components, buildModules, modules, axios, dayjs, vuetify, publicRuntimeConfig, privateRuntimeConfig, storybook, i18n, build, router, serverHandlers, devServerHandlers, bridge
• Runtime Modules: @nuxtjs/[email protected], 8n, @nuxtjs/[email protected]
• Build Modules: (), @nuxtjs/[email protected], @nuxtjs/[email protected], @pinia/[email protected], @nuxt/[email protected]

---

Reproduction

https://codesandbox.io/s/confident-wildflower-cjzhey

Describe the bug

I've set a plugin :

export default <Plugin>function ({ app, $axios }, inject: Inject) {
  const snackbarStore = useSnackbarStore()
  const authStore = useAuthStore()

  const api = $axios.create({
    headers: {
      common: {
        Accept: 'application/json',
        'Accept-Language': `${app.i18n.locale}, fr-FR`,
      },
    }
  })

  inject('api', api)
}

On dev mode everything's fine but when I build and start, I got this error :

[nuxt] [request error] external_defu_default(...) is not a function
  at Function.create (./server/chunks/app/server.mjs:22020:59)  
  at plugins_api (./server/chunks/app/server.mjs:22223:26)  
  at createApp (./server/chunks/app/server.mjs:22723:15)  
  at async __webpack_exports__.default (./server/chunks/app/server.mjs:22821:11)  
  at async renderToString (./server/chunks/handlers/renderer.mjs:268:19)  
  at async ./server/chunks/handlers/renderer.mjs:601:20  
  at async ./server/node_modules/h3/dist/index.mjs:417:19  
  at async Server.nodeHandler (./server/node_modules/h3/dist/index.mjs:367:7)

Line 22020 is :

create(options) {
  return createAxiosInstance(external_defu_default()(options, this.defaults));
}

Additional context

No response

Logs

No response

[aldarund]

In the provided example for me its just infinite loop into plugin with printing console.log from it. Its caused by defu error, but for some reason that error in plugin cause infinite loop ( possible another issue?). To get defu error need wrap axios.create from plugin into try catch e.g. like this

// eslint-disable-next-line import/named
import { NuxtAxiosInstance } from '@nuxtjs/axios'
import { Inject } from '@nuxt/types/app'
import type { Plugin } from '@nuxt/types'

export default <Plugin>function ({ $axios }, inject: Inject) {
  console.log('Plugin is called')
  // Create a custom axios instance
  try {
  const api = $axios.create({
    headers: {
      common: {
        Accept: 'application/json'
      }
    }
  }) as NuxtAxiosInstance
  } catch (e) {
	  console.log(e)
  }

} 

which will produce following error:

Plugin is called
TypeError: external_defu_default(...) is not a function
    at Function.create (file:///d:/sss/.output/server/chunks/server.mjs:16425:60)
    at api (file:///d:/sss/.output/server/chunks/server.mjs:16542:30)
    at createApp (file:///d:/sss/.output/server/chunks/server.mjs:16734:16)
    at async __webpack_exports__.default (file:///d:/sss/.output/server/chunks/server.mjs:16829:12)
    at async Object.renderToString (file:///d:/sss/.output/server/chunks/renderer.mjs:274:19)
    at async file:///d:/sss/.output/server/chunks/renderer.mjs:658:20
    at async file:///d:/sss/.output/server/node_modules/h3/dist/index.mjs:438:19
    at async Server.nodeHandler (file:///d:/sss/.output/server/node_modules/h3/dist/index.mjs:384:7)

[brolnickij]

I have the same problem

npm i --save-dev [email protected] solves this problem

[existe-deja]

insatlling defu doesn't solve the problem on

------------------------------
- Operating System: `Linux`
- Node Version:     `v16.19.0`
- Nuxt Version:     `2.16.2`
- Nitro Version:    `1.0.0`
- Package Manager:  `[email protected]`
- Builder:          `webpack`
- User Config:      `bridge`, `target`, `nitro`, `components`, `runtimeConfig`, `app`, `css`, `loading`, `plugins`, `devServerHandlers`, `modules`, `build`, `router`, `twicpics`, `i18n`, `toast`, `sentry`, `content`, `serverHandlers`, `devServer`, `typescript`, `buildModules`
- Runtime Modules:  `@nuxtjs/[email protected]`, `@nuxtjs/[email protected]`, `@nuxtjs/[email protected]`, `@nuxtjs/[email protected]`, `@twicpics/components/[email protected]`
- Build Modules:    `()`, `@nuxt/[email protected]`
------------------------------

[brolnickij]

confirmed, for the latest build @nuxt/bridge downgrade for defu - not working :((

[brolnickij]

im finded solution unjs/defu#81 (comment)