Nuxt•4d ago

set API_BASE_URL in static site

My landing page project has 3 environments: dev, staging, production, and the API url for all 3 environments are different. How can my static site use an environment variable for this?

8 Replies

kapa.ai•4d ago

Hi @cybercoder-naj. I'm kapa.ai, your friendly support bot. I will try to answer your question by searching through the knowledge base. :wave: ---------------------- To set different API base URLs for your static Nuxt site across different environments (dev, staging, production), you can use runtime config in combination with environment variables. Here's how you can approach this: 1. First, define your runtime config in nuxt.config.ts:

export default defineNuxtConfig({
  runtimeConfig: {
    public: {
      apiBase: '' // This will be overridden by NUXT_PUBLIC_API_BASE environment variable
    }
  }
})

export default defineNuxtConfig({
  runtimeConfig: {
    public: {
      apiBase: '' // This will be overridden by NUXT_PUBLIC_API_BASE environment variable
    }
  }
})

2. Set the environment variable NUXT_PUBLIC_API_BASE for each environment. You can do this in your .env file for local development:

NUXT_PUBLIC_API_BASE=<https://api-dev.example.com>

NUXT_PUBLIC_API_BASE=<https://api-dev.example.com>

3. For staging and production, set the environment variable on your hosting platform. 4. In your components or pages, you can access the API base URL using the useRuntimeConfig composable:

<script setup>
const config = useRuntimeConfig()
const apiBaseUrl = config.public.apiBase
</script>

<script setup>
const config = useRuntimeConfig()
const apiBaseUrl = config.public.apiBase
</script>

For a static site, it's important to note that you need to set these environment variables at build time, as they will be embedded in the generated static files. You cannot change them after the site is built and deployed. If you need to change the API base URL after deployment without rebuilding, you might need to consider a different approach, such as using client-side JavaScript to determine the current environment and set the API base URL accordingly. Sources: Docs > Guide > Going-further > Runtime Config Docs > Api > Nuxt Configuration > runtimeConfig ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•4d ago

<@711113525023735809> Kapa.ai is still learning and improving, please let me know how I did by reacting below.

NightFuriesOP•3d ago

@kapa.ai I have a common layer that requires the base url. One static app and another SSR app uses this common module. How can I use env variables such that both apps work

kapa.ai•3d ago

Let me check the knowledge base for you again. One moment! :books: ---------------------- To use environment variables for a common layer that requires the base URL, which is shared between a static app and an SSR app in Nuxt, you can follow these steps: 1. First, define the runtime config in your nuxt.config.ts for both applications:

export default defineNuxtConfig({
  runtimeConfig: {
    public: {
      apiBase: '' // This will be overridden by NUXT_PUBLIC_API_BASE environment variable
    }
  }
})

export default defineNuxtConfig({
  runtimeConfig: {
    public: {
      apiBase: '' // This will be overridden by NUXT_PUBLIC_API_BASE environment variable
    }
  }
})

2. Set the environment variable NUXT_PUBLIC_API_BASE for each environment and application. You can do this in your .env file for local development:

NUXT_PUBLIC_API_BASE=<https://api.example.com>

NUXT_PUBLIC_API_BASE=<https://api.example.com>

3. In your common layer, you can access the API base URL using the useRuntimeConfig composable:

const config = useRuntimeConfig()
const apiBaseUrl = config.public.apiBase

const config = useRuntimeConfig()
const apiBaseUrl = config.public.apiBase

This approach will work for both your static and SSR applications because: - For the SSR app, the environment variables will be read at runtime, allowing you to change them without rebuilding. - For the static app, the environment variables will be embedded at build time. However, there are a couple of important considerations: 1. For the static app, you'll need to rebuild and redeploy if you want to change the API base URL after deployment. 2. Ensure that you're setting the environment variables correctly for each environment and application, both during development and on your hosting platforms. 3. If you need to change the API base URL for the static app after deployment without rebuilding, you might need to consider a client-side solution. For example, you could use a configuration file that's loaded at runtime, or use a service to fetch the configuration. Remember, when using this approach, any values in runtimeConfig.public will be exposed to the client, so don't put any sensitive information there. Docs > Guide > Going-further > Runtime Config provides more detailed information on how to use runtime config and environment variables in Nuxt 3. If you need more specific guidance on implementing this in your common layer or have any other questions, please let me know. ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•3d ago

<@711113525023735809> Kapa.ai is still learning and improving, please let me know how I did by reacting below.

NightFuriesOP•3d ago

@kapa.ai I decided to use process.env.API_BASE but this was generated to const A = {}; A.API_BASE. what can i do to fix this?

kapa.ai•3d ago

Let me check the knowledge base for you again. One moment! :books: ---------------------- It seems like you're encountering an issue with how process.env variables are being processed in your Nuxt application. The behavior you're describing, where process.env.API_BASE is transformed into const A = {}; A.API_BASE, is not the expected behavior in Nuxt 3. Let's address this issue and provide a proper solution. In Nuxt 3, the recommended way to handle environment variables is to use the runtimeConfig feature. Here's how you can fix this: 1. First, update your nuxt.config.ts file to use runtimeConfig:

export default defineNuxtConfig({
  runtimeConfig: {
    public: {
      apiBase: process.env.NUXT_PUBLIC_API_BASE || '<https://default-api-url.com'>
    }
  }
})

export default defineNuxtConfig({
  runtimeConfig: {
    public: {
      apiBase: process.env.NUXT_PUBLIC_API_BASE || '<https://default-api-url.com'>
    }
  }
})

2. In your .env file or in your environment variables, use the NUXT_PUBLIC_ prefix:

NUXT_PUBLIC_API_BASE=<https://your-api-url.com>

NUXT_PUBLIC_API_BASE=<https://your-api-url.com>

3. In your code, instead of using process.env.API_BASE, use the useRuntimeConfig composable:

const config = useRuntimeConfig()
const apiBase = config.public.apiBase

const config = useRuntimeConfig()
const apiBase = config.public.apiBase

This approach has several advantages: - It works consistently across different environments (development, production, static generation, etc.). - It allows you to set default values in your nuxt.config.ts. - It properly exposes the variables to both server and client-side code when needed. If you're still seeing issues with variable replacement, make sure you're running the latest version of Nuxt 3 and that your build process is correctly set up. Remember, for security reasons, only variables prefixed with NUXT_PUBLIC_ will be exposed to the client-side code. If you need to keep some variables server-side only, you can place them directly under runtimeConfig without the public key. Docs > Guide > Going-further > Runtime Config provides more detailed information on how to properly use environment variables and runtime configuration in Nuxt 3. If you continue to face issues after implementing these changes, please provide more details about your setup and build process, and I'll be happy to help further. ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•3d ago

<@711113525023735809> Kapa.ai is still learning and improving, please let me know how I did by reacting below.

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