Function renderToString

packages/server-renderer/src/renderToString.ts:70–97

(
  input: App | VNode,
  context: SSRContext = {},
)

}

export async function renderToString(
  input: App | VNode,
  context: SSRContext = {},
): Promise<string> {
  if (isVNode(input)) {
    // raw vnode, wrap with app (for context)
    return renderToString(createApp({ render: () => input }), context)
  }

  // rendering an app
  const vnode = createVNode(input._component, input._props)
  vnode.appContext = input._context
  // provide the ssr context to the tree
  input.provide(ssrContextKey, context)
  const buffer = await renderComponentVNode(vnode)

  const result = await unrollBuffer(buffer as SSRBuffer)

  await resolveTeleports(context)

  if (context.__watcherHandles) {
    for (const unwatch of context.__watcherHandles) {
      unwatch()
    }
  }

  return result
}

export async function resolveTeleports(context: SSRContext): Promise<void> {
  if (context.__teleportBuffers) {