__TSS_START_OPTIONS__ is possibly undefined, especially in tests

Author: schiller-manuel

packages/start-client-core/src/createServerFn.ts

@@ -173,7 +173,7 @@ export async function executeMiddleware(
   env: 'client' | 'server',
   opts: ServerFnMiddlewareOptions,
 ): Promise<ServerFnMiddlewareResult> {
-  const globalMiddlewares = getStartOptions().functionMiddleware || []
+  const globalMiddlewares = getStartOptions()?.functionMiddleware || []
   const flattenedMiddlewares = flattenMiddlewares([
     ...globalMiddlewares,
     ...middlewares,

packages/start-client-core/src/getDefaultSerovalPlugins.ts

@@ -7,7 +7,7 @@ import type { AnySerializationAdapter } from '@tanstack/router-core'
 
 export function getDefaultSerovalPlugins() {
   const start = getStartOptions()
-  const adapters = start.serializationAdapters as
+  const adapters = start?.serializationAdapters as
     | Array<AnySerializationAdapter>
     | undefined
   return [

packages/start-client-core/src/getStartOptions.ts

@@ -1,6 +1,8 @@
 import { getStartContext } from '@tanstack/start-storage-context'
 import { createIsomorphicFn } from './createIsomorphicFn'
+import type { AnyStartInstanceOptions } from './createStart'
 
-export const getStartOptions = createIsomorphicFn()
-  .client(() => window.__TSS_START_OPTIONS__!)
-  .server(() => getStartContext().startOptions)
+export const getStartOptions: () => AnyStartInstanceOptions | undefined =
+  createIsomorphicFn()
+    .client(() => window.__TSS_START_OPTIONS__)
+    .server(() => getStartContext().startOptions)