AWS API Gateway stages and nextjs uri base path

[danielcondemarin]

Feature request

Is your feature request related to a problem? Please describe.

Amazon API Gateways have a stage in their URLs:

E.g. https://vbe6aad5c.execute-api.us-east-1.amazonaws.com/prod/home

This breaks next8 serverless page deployments routing because there doesn't seem to be a way to configure nextjs with a basePath (/prod in this case).

Describe the solution you'd like

I would like to be able to configure nextjs with a uri basePath which works with next's routing.

Could be something like:

next.config.js

module.exports = {
  uriBasePath: '/prod'
}

Note assetPrefix doesn't work here because it applies only to static files AFAIK.

Describe alternatives you've considered

Using a custom domain for the AWS API GW would solve the problem as it removes the /{stage} from the URL.

[timneutkens]

Duplicate of #4998