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OpenNext takes the Next.js build output and converts it into a package that can be deployed to any functions as a service platform.

OpenNext aims to support all Next.js 13 features. Some features are work in progress. Please open a new issue to let us know!

• App & Pages Router
• API routes
• Dynamic routes
• Static site generation (SSG)
• Server-side rendering (SSR)
• Incremental static regeneration (ISR)
• Middleware
• Image optimization
• NextAuth.js
• Running at edge
• No cold start

Gymshark UK, Udacity, TUDN, NHS England

In the example folder, you can find a Next.js benchmark app. It contains a variety of pages that each test a single Next.js feature. The app is deployed to both Vercel and AWS using SST.

AWS link: https://d1gwt3w78t4dm3.cloudfront.net

Vercel link: https://open-next.vercel.app

• AWS_SDK_DYNAMODB_MAX_ATTEMPTS: The maximum number of times requests that encounter retryable failures should be attempted for DynamoDB. Defaults to 3.
• AWS_SDK_S3_MAX_ATTEMPTS: The maximum number of times requests that encounter retryable failures should be attempted for S3. Defaults to 3.
• DYNAMO_BATCH_WRITE_COMMAND_CONCURRENCY: The number of concurrent batch write commands to DynamoDB. Defaults to 4 in an effort to leave plenty of DynamoDB write request capacity for the production load.

To run OpenNext locally:

1. Clone this repository.
2. Build open-next:

   cd open-next
   pnpm build

3. Run open-next in watch mode:

   pnpm dev

4. Now, you can make changes in open-next and build your Next.js app to test the changes.

   cd path/to/my/nextjs/app
   path/to/open-next/packages/open-next/dist/index.js build

We are grateful for the projects that inspired OpenNext and the amazing tools and libraries developed by the community:

• nextjs-lambda by Jan for serving as inspiration for packaging Next.js's standalone output to Lambda.
• CDK NextJS by JetBridge for its contribution to the deployment architecture of a Next.js application on AWS.
• serverless-http by Doug Moscrop for developing an excellent library for transforming AWS Lambda events and responses.
• serverless-nextjs by Serverless Framework for paving the way for serverless Next.js applications on AWS.

Special shoutout to @khuezy and @conico974 for their outstanding contributions to the project.

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