Upgrade to miniflare v3

[peterhirn]

Hi,

miniflare v3 was released quite recently (~2 months ago). As far as I understand they completely replaced the cf emulation in node.js with native workerd which lead to this long list of breaking API changes. Additionally there are a couple of missing features.

Mixing miniflare v2 and wrangler v3 in development works, but produces some unexpected behavior:

• miniflare v2 requires additional configuration to parse config files (.env, wrangler.toml, etc.)
• state is persisted in different local folders (.mf/ vs .wrangler/)

I was wondering

• is there an ongoing effort to upgrade to miniflare v3
• do some of the breaking changes / missing features outright prevent an upgrade
• would you be interested in a PR / how can I help

Cheers 🍺

References:

• chore(deps): update devdependency miniflare to v3 #1251

[Hebilicious]

Hi @peterhirn, we use miniflare only for the tests, so upgrading should be relatively straightforward as we are not using a lot of the miniflare features. Feel free to open a PR.