multiple chains x same module

[harrysolovay]

Let's say we're using a Capi pattern lib multisig_util.

import * as multisigUtil from "multisig_util"

Let's use an import map to specify the chain.

import_map.json

{
  "scopes": {
    "multisig_util/": {
      "#chain": "<the-compass>"
    }
  }
}

What if we want to utilize this lib twice in the same file, with two different chains? Given this approach, we cannot.

On one hand, we could design libs such that the "compass" needs to be injected into instances at runtime.

import { MultisigUtil } from "multisig_util"

const multisigUtil = new MultisigUtil(client)

But this is lackluster, as one does not get the type-checking against the target chain (not ideal).

I believe we'll need to tackle this via the codegen server (#471)

import * as multisigUtil from "http://localhost:8000/...compass.../lib/multisig_util/mod.ts"

How would this look with the import-mapped lead?

import * as multisigUtil from "#polkadot/lib/multisig_util/mod.ts"

I suppose any valid import spec could follow /lib (as well as anything defined within the import map)