feat: Support for asynchronous getLoadContext

[ogadra]

Related #21

Support for asynchronous getLoadContext.
The getLoadContext function is already awaited in src/middleware.ts at line 21.
Therefore, we only need to support the type that returns Promise<AppLoadContext>.

※ 英語に自信がないので、日本語でも説明します。
非同期の getLoadContext のサポート。
getLoadContext 関数はすでに src/middleware.tsの21行目でawaitされています。
そのため、GetLoadContext 型が Promise<AppLoadContext> を返せるようにすればよいです。

[yusukebe]

Hi @ogadra Thank you for the PR!

@predaytor Will this solve your problem? Can you review this?

[predaytor]

@yusukebe yeah! except we also need to check the promise in dev script at src/dev.ts:

app.all('*', async (c) => {
  // ...

  // const remixContext = getLoadContext(args)
  // return handler(c.req.raw, remixContext)

  const remixContext = getLoadContext(args)

  return handler(c.req.raw, remixContext instanceof Promise ? await remixContext : remixContext)
})

[yusukebe]

@ogadra @predaytor

I've updated to check if Promise or not and added the type defaultGetLoadContext: 37cda75

Can you review this?

[ogadra]

@yusukebe Thanks for support! Looks good to me!

[yusukebe]

Okay! Merging.