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Next.js

Note: You are viewing the new Next.js documentation. The old docs are still available here.

Configuring the Build ID

Next.js uses a constant id generated at build time to identify which version of your application is being served. This can cause problems in multi-server deployments when next build is ran on every server. In order to keep a static build id between builds you can provide your own build id.

Open next.config.js and add the generateBuildId function:

module.exports = {
  generateBuildId: async () => {
    // You can, for example, get the latest git commit hash here
    return 'my-build-id'
  },
}

Related

Introduction to next.config.js

Learn more about the configuration file used by Next.js.
Setting a custom build directoryConfiguring onDemandEntries