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README.md

Example app using Couchbase

Couchbase is a modern database for enterprise applications. This example will show you how to connect to and use Couchbase in your Next.js app.

If you want to learn more about Couchbase, visit the following pages:

Deploy your own

Deploy with Vercel

How to use

Execute create-next-app with npm, Yarn, or pnpm to bootstrap the example:

npx create-next-app --example with-couchbase with-couchbase-app
yarn create next-app --example with-couchbase with-couchbase-app
pnpm create next-app --example with-couchbase with-couchbase-app

Deploy it to the cloud with Vercel (Documentation).

Configuration

Set up a Couchbase database

Set up a Couchbase database either locally or with Couchbase Cloud.

Local installation can be accomplished through a variety of methods, but Docker is the simplest.

After Couchbase is installed, set up a cluster by following this tutorial.

  • NOTE: the eventing and analytics services can be unchecked if memory is a constraint (this is often the case with docker and other local installations).

A variety of sample buckets can be installed to get up and running with a data model quickly.

Set up environment variables

Copy the env.local.example file in this directory to .env.local (which will be ignored by Git):

cp .env.local.example .env.local

Set each variable on .env.local:

  • COUCHBASE_USERNAME - The username of an authorized user on your Couchbase instance
  • COUCHBASE_PASSWORD - The corresponding password for the username specified above
  • COUCHBASE_ENDPOINT - The endpoint to connect to. Use localhost for a local instance of Couchbase, or the Wide Area Network address for a cloud instance.
  • COUCHBASE_BUCKET - The bucket you'd like to connect to for testing.
  • IS_CLOUD_INSTANCE - true if you are trying to connect to an instance of Couchbase Cloud, false otherwise.

Run Next.js in development mode

npm install
npm run dev
# or
yarn install
yarn dev

Your app should be up and running on http://localhost:3000! If it doesn't work, post on GitHub discussions.

You will either see a message stating "You are connected to Couchbase" or "You are NOT connected to Couchbase". Ensure that you have provided the correct environment variables.

When you are successfully connected, you can refer to the Couchbase Node.js SDK docs for further instructions on how to query your database.

Deploy on Vercel

You can deploy this app to the cloud with Vercel (Documentation).

Deploy Your Local Project

To deploy your local project to Vercel, push it to GitHub/GitLab/Bitbucket and import to Vercel.

Notes

  • When you import your project on Vercel, make sure to click on Environment Variables and set the keys to match your .env.local file.

  • For a cloud deployment on Vercel, the Environment Variables values will need to correspond to a cloud instance of Couchbase (localhost will NOT connect from a remote server such as Vercel). Find info on getting started with Couchbase cloud.

    • Important: you will have to allowlist 0.0.0.0/0 as the IP address, since Vercel's serverless deployments use dynamic IP addresses