Strategies for setting up the runtime dynamically for Nextjs API routes

After deploying my Next.js 13 app on Cloudflare Pages, I encountered an issue with the API routes. To address this, I had to export the runtime variable from each route in the following manner.

export const runtime = "edge"

During local development, I found that I need to switch this value to 'nodejs'. I attempted to use a Next.js environment variable for this purpose, but unfortunately, it did not work on Cloudflare.

Does anyone have any suggestions on a more efficient method to toggle between these two runtimes for production and development environments? Thank you in advance!

javascriptnext.jscloudflareedge-runtime

Answer №1

To resolve your issue, we can manage the variables in production or development using the .env file. Utilize .env for production and .env.local for development.

Here is an update:

Add a configuration to the file next.config.js:

const nextConfig = {
...
  serverRuntimeConfig: {
    runtime: process.env.RUNTIME
  }
...
}

Now you can access this configuration with the next/config package. For example:

// /app/pages.tsx

import getConfig from 'next/config';

...
const {serverRuntimeConfig} = getConfig();

console.log(serverRuntimeConfig.runtime); => the value depends on .env or .env.locale file.

This approach has worked successfully for me.

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