next-app

1. Update connection string in server.js:

   appInsights.setup("<YOUR_CONNECTION_STRING>").start();

2. Run following command:

   npm install
   npm run dev
   

3. Make some requests by going to localhost:3000/a and localhost:3000/b. Then go to Azure portal - your Application Insights resource page to review data.

Reference:

1. Setup Next.js: https://nextjs.org/docs/getting-started#setup
2. Custom server example: https://nextjs.org/docs/advanced-features/custom-server
3. Online sample: https://stackblitz.com/edit/github-ycxznf