express v5

[joergbaier]

@apollo/server has express v4 as a dependency. After several years, express is moving forward with releasing v5 (currently published as next tag). Having support for v5 here would unblock and encourage people to upgrade.

https://www.npmjs.com/package/express?activeTab=versions
https://github.com/expressjs/express/releases/tag/v5.0.0

At this time, I have not checked for breaking changes in this repo, but wanted to open this issue to get things rolling. Any changes could be published under the next tag as well.

[joergbaier]

Typing updates for @types/express & @types/express-serve-static-core
DefinitelyTyped/DefinitelyTyped#70563

[RobinTail]

Breaking changes are listed in the migration guide, which is not yet up to date. Besides the listed changes there is also Node.js min supported version: 18.
The primary feature is proper handling of asynchronous handlers.

[glasser]

I think it would be a good start if community members wanted to publish Express 5 integrations separately (perhaps under the @as-integrations npm org / apollo-server-integrations GitHub org)! While we could add a @apollo/server/express5 directory directly to Apollo Server, it might be challenging to do so in a way that uses different dependencies for two different parts of the same npm module, so getting this in core might be more likely a thing for the next major version of AS, which is not currently scheduled.