ui-router-server / connect / createConnectMiddleware

Function: createConnectMiddleware()

function createConnectMiddleware(router, options?): ConnectMiddleware;

Defined in: connect.ts:232

Wraps a ServerRouter as Connect middleware. Mount it BEFORE the static layer; the default host serves shells by rewriting req.url and next()ing into it. resolve() is always async (the simulate tier's lazy boundary), which Connect absorbs naturally — with matcher-tier mounts nothing async ever actually runs.

Under a base, the mounts see each url with the base taken off, and every url the middleware writes gets it back.

• redirect → writeHead(302, { Location }), the request's search MERGED into the verdict's location via mergeSearch (targets that declare their own query keep it — never ?a=1?b=2).
• shell → Link: <mount>; rel="canonical" (the shell is the same representation at every route path), then serveShell.
• shell with status (the otherwise projection) → validators stripped, downstream status relabeled, no canonical Link (a 404 is not an alternate representation of the mount root), then serveShell.
• notFound with a mount → serveNotFound (honest 404).
• notFound without a mount, or a non-navigation request → next().
• delegate → next() with `delegates: 'next'`; mount the handlers for delegating states downstream.
• response → next() with `responses: 'next'`; answer response states downstream.

Parameters

Parameter	Type
router	ServerRouter
options?	ConnectAdapterOptions

Returns

ConnectMiddleware

Throws

at construction when the router names delegate keys and delegates is not 'next', or declares response states and responses is not 'next'