Modules: Feature: Arbitrary sources for module source text

[GeoffreyBooth]

• I want to load modules from a database and not from the filesystem.
• I want to load modules from a URL.

Use case 6. Related to use case 38, about --eval for ESM code.

[Jamesernator]

This can be partially solved by the vm.Module constructor and linking and evaluating the module yourself. Obviously it's not that elegant so I wouldn't call it a done solution, but at the very least the use case is accomplishable.

Perhaps the --loader flag thing would also enable this use case, but I'm not too familiar with it.

[xtuc]

Sorry I don't understand this use case, could you please provide a few examples?

Are the following example in this use case?

import tty from "unix:///dev/tty0"
import file from "file://tmp/foo"
import something from "tcp://localhost"

[GeoffreyBooth]

Pinging @ceejbot as this was their use case.

[ljharb]

I would expect that there'd be a way to do both of the following:

1. programmatically create a module, perhaps with VM.module, from an arbitrary string, and define it to be importable at some path
2. define a custom loader that can handle custom URL protocols, or custom paths, that can load source text in real time.