Nuxt•4mo ago

Custom scripts in command line?

Is it possible to create a custom script that I can run with "npm run"? It seems I can't access defineNuxtConfig during this approach with a normal TS file and TSX. ReferenceError: defineNuxtConfig is not defined I want a custom script I can run in the terminal that extends "npm run generate" so I can pass some arguments.

12 Replies

kapa.ai•4mo ago

Hi @Zyme. I'm kapa.ai, your friendly support bot. I will try to answer your question by searching through the knowledge base. :wave: ---------------------- To answer your question about creating custom scripts that can be run with "npm run" in a Nuxt project, I'll need to provide some clarification and suggestions based on the available information. The error you're encountering (ReferenceError: defineNuxtConfig is not defined) is because defineNuxtConfig is indeed not available in regular TypeScript files outside of the Nuxt context. This function is typically used in the nuxt.config.ts file and is made available by Nuxt itself. For creating custom scripts that extend Nuxt commands like "generate", you have a couple of options: 1. Use Nuxt CLI (nuxi) commands: Instead of trying to access defineNuxtConfig directly, you can use Nuxt's CLI tool (nuxi) to run commands with additional arguments. For example, you could create a custom script in your package.json like this:

   {
     "scripts": {
       "generate:custom": "nuxi generate --dotenv .env.custom"
     }
   }

   {
     "scripts": {
       "generate:custom": "nuxi generate --dotenv .env.custom"
     }
   }

Then you can run it with npm run generate:custom. 2. Create a separate Node.js script: If you need more complex logic, you can create a separate Node.js script that uses the Nuxt programmatic API. However, this approach is more advanced and not as straightforward. 3. Use Nuxt hooks: If you need to extend the behavior of the generate command, you might want to look into using Nuxt hooks in your nuxt.config.ts file. This allows you to tap into various points of the Nuxt lifecycle. Unfortunately, the knowledge sources don't provide a direct example of creating a custom script that extends "npm run generate" with additional arguments. The closest relevant information is about using the Nuxt CLI commands, which I've outlined in option 1 above. For more detailed information about Nuxt CLI commands, you can refer to the following documentation: Nuxt Commands If you need more specific functionality, you might want to explore Nuxt modules or plugins, which offer more powerful ways to extend Nuxt's capabilities. ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•4mo ago

<@105676519669538816> Kapa.ai is still learning and improving, please let me know how I did by reacting below.

ZymeOP•4mo ago

How do I create a custom typescript file that I can run with "npm run" with having access to nuxt config? @kapa.ai

kapa.ai•4mo ago

Let me check the knowledge base for you again. One moment! :books: Sorry @Zyme, I seem to be having a bit of trouble. Don't worry though, I've pinged my support and they will try to fix me up! :technologist: Perhaps try again in 15mins?

ZymeOP•4mo ago

@kapa.ai

kapa.ai•4mo ago

Mittchel•3mo ago

@kapa.ai

import { useRuntimeConfig, useNuxtApp } from '#imports'

export async function doSomethingWithNuxt() {
  try {
    const config = useRuntimeConfig()
    const nuxtApp = useNuxtApp()
    console.log('Nuxt Config:', config.public.MY_CUSTOM_VAR);
    console.log('Nuxt App:', nuxtApp);
    const data = await nuxtApp.$fetch('/api/some-data');
    console.log('Fetched data:', data);
    // const route = useRoute()
    console.log('Doing something with Nuxt...');
    return "Success"
  } catch (error) {
    console.error("Error doing something with Nuxt", error)
    return "Error"
  }
}

import { useRuntimeConfig, useNuxtApp } from '#imports'

export async function doSomethingWithNuxt() {
  try {
    const config = useRuntimeConfig()
    const nuxtApp = useNuxtApp()
    console.log('Nuxt Config:', config.public.MY_CUSTOM_VAR);
    console.log('Nuxt App:', nuxtApp);
    const data = await nuxtApp.$fetch('/api/some-data');
    console.log('Fetched data:', data);
    // const route = useRoute()
    console.log('Doing something with Nuxt...');
    return "Success"
  } catch (error) {
    console.error("Error doing something with Nuxt", error)
    return "Error"
  }
}

// scripts/my-script.ts
import { loadNuxtConfig, build } from '@nuxt/kit'
import { doSomethingWithNuxt } from '../utils/nuxt-helpers'

async function main() {
    try {
        const config = await loadNuxtConfig()
        await build(config)
        const result = await doSomethingWithNuxt()
        console.log("Result: ", result)
    } catch (error) {
        console.error('Error:', error)
        process.exit(1)
    }
}

main()

// scripts/my-script.ts
import { loadNuxtConfig, build } from '@nuxt/kit'
import { doSomethingWithNuxt } from '../utils/nuxt-helpers'

async function main() {
    try {
        const config = await loadNuxtConfig()
        await build(config)
        const result = await doSomethingWithNuxt()
        console.log("Result: ", result)
    } catch (error) {
        console.error('Error:', error)
        process.exit(1)
    }
}

main()

```

kapa.ai•3mo ago

Let me check the knowledge base for you again. One moment! :books: ---------------------- Based on the code you've provided and the information from the knowledge sources, I can offer some insights and suggestions regarding your custom script approach. 1. Accessing Nuxt Context: The useRuntimeConfig and useNuxtApp composables are designed to be used within the Nuxt application context, typically in components, plugins, or Nuxt-specific lifecycle hooks. Using them in a standalone script might not work as expected. As mentioned in the Auto-imports documentation: "That means that (with very few exceptions) you cannot use them outside a Nuxt plugin, Nuxt route middleware or Vue setup function." 2. Using Nuxt Kit: Your approach of using @nuxt/kit in the my-script.ts file is on the right track. The loadNuxtConfig and build functions from @nuxt/kit are designed for programmatic usage outside of the Nuxt application context. However, the doSomethingWithNuxt function might not work as intended because it's trying to use Nuxt composables outside of the Nuxt context. 3. Accessing Runtime Config: If you need to access runtime config in your custom script, you can use the useRuntimeConfig utility from @nuxt/kit. Here's an example of how you might modify your script:

   import { loadNuxtConfig, build, useRuntimeConfig } from '@nuxt/kit'

   async function main() {
     try {
       const config = await loadNuxtConfig()
       await build(config)
       
       const runtimeConfig = useRuntimeConfig()
       console.log('Runtime Config:', runtimeConfig)
       
       // Your custom logic here
     } catch (error) {
       console.error('Error:', error)
       process.exit(1)
     }
   }

   main()

   import { loadNuxtConfig, build, useRuntimeConfig } from '@nuxt/kit'

   async function main() {
     try {
       const config = await loadNuxtConfig()
       await build(config)
       
       const runtimeConfig = useRuntimeConfig()
       console.log('Runtime Config:', runtimeConfig)
       
       // Your custom logic here
     } catch (error) {
       console.error('Error:', error)
       process.exit(1)
     }
   }

   main()

4. Fetching Data: If you need to fetch data in your custom script, you might want to use a regular HTTP client like node-fetch or axios instead of nuxtApp.$fetch, as the latter is tied to the Nuxt application context. 5. Running the Script: You can add a script to your package.json to run this custom script:

   {
     "scripts": {
       "custom-script": "ts-node scripts/my-script.ts"
     }
   }

   {
     "scripts": {
       "custom-script": "ts-node scripts/my-script.ts"
     }
   }

Then you can run it with npm run custom-script. Remember that while you can access some Nuxt functionality through @nuxt/kit, not all Nuxt features will be available in a standalone script. If you need full access to the Nuxt context, consider creating a Nuxt plugin or using Nuxt hooks instead. For more information on using Nuxt Kit, you can refer to the Nuxt Kit documentation. ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•3mo ago

<@986261971097780254> Kapa.ai is still learning and improving, please let me know how I did by reacting below.

Mittchel•3mo ago

@kapa.ai something like useNuxtApp in @nuxt/kit ?

kapa.ai•3mo ago

Let me check the knowledge base for you again. One moment! :books: ---------------------- Based on the knowledge sources provided, there isn't a direct equivalent to useNuxtApp in @nuxt/kit that can be used outside of the Nuxt application context. However, @nuxt/kit does provide some utilities that allow you to interact with the Nuxt instance programmatically. The closest utility provided by @nuxt/kit for accessing the Nuxt instance is useNuxt(). As mentioned in the Nuxt Kit Context documentation: "Nuxt modules allow you to enhance Nuxt's capabilities. They offer a structured way to keep your code organized and modular. If you're looking to break down your module into smaller components, Nuxt offers the useNuxt and tryUseNuxt functions. These functions enable you to conveniently access the Nuxt instance from the context without having to pass it as argument." Here's an example of how you might use useNuxt():

import { useNuxt } from '@nuxt/kit'

// Inside a function or module where Nuxt context is available
const nuxt = useNuxt()
// Now you can access various properties and methods of the Nuxt instance
console.log(nuxt.options)

import { useNuxt } from '@nuxt/kit'

// Inside a function or module where Nuxt context is available
const nuxt = useNuxt()
// Now you can access various properties and methods of the Nuxt instance
console.log(nuxt.options)

It's important to note that useNuxt() is designed to be used within the context of Nuxt modules or programmatic usage, not in regular application code or standalone scripts. If you're working in a context where the Nuxt instance might not always be available, you can use tryUseNuxt() instead:

import { tryUseNuxt } from '@nuxt/kit'

const nuxt = tryUseNuxt()
if (nuxt) {
  // Nuxt instance is available
} else {
  // Nuxt instance is not available
}

import { tryUseNuxt } from '@nuxt/kit'

const nuxt = tryUseNuxt()
if (nuxt) {
  // Nuxt instance is available
} else {
  // Nuxt instance is not available
}

Remember that these utilities are part of @nuxt/kit, which is primarily used for building Nuxt modules and programmatic interactions with Nuxt, not for regular application development. If you're trying to access the Nuxt app instance within your application code, you should continue to use useNuxtApp() in the appropriate contexts (components, plugins, etc.) as discussed in your previous questions. For more details on the Nuxt Kit utilities, you can refer to the Nuxt Kit documentation. ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•3mo ago

<@986261971097780254> Kapa.ai is still learning and improving, please let me know how I did by reacting below.

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