Feature Request: Support Passthrough from msw Endpoint to msw Endpoint about msw

[kettanaito]

Hi, @TakashiAihara. I believe what you want to achieve is already supported. If you return undefined from a response resolver, it will skip that handler and MSW will continue with the other matching request handlers. You can return at any point in the resolver to trigger this mechanism.

Here's an example:

http.get('/resource', ({ request }) => {
  if (request.headers.get('Accept') === 'text/csv') {
    // Exit this handler but don't return how to
    // resolve this request. This will tell MSW to
    // keep looking for other matching handlers.
    return 
  }
}),
http.get('/resource', ({ request }) => {
  // Handling a "Accept: text/csv" requests at this point.
  return HttpResponse.json({ mock: true })
})

[kettanaito]

It looks like I've missed to mention this behavior in the docs. This behavior is called "fallthrough", and you can now read about it in the Fallthrough the request section of the response resolver page. Thanks for bringing this to my attention!