fix: type error

packages/fetch-links/links/authLink.ts

@@ -1,16 +1,20 @@
-import {
-  ClientAuthOptions,
-  mergeHeaders,
-  modifyRequest,
-  openIntProxyLink,
-} from '@opensdks/runtime'
-import {Link} from '../link.js'
+import type {UnionToIntersection} from 'type-fest'
+import type {ClientAuthOptions} from '@opensdks/runtime'
+import {mergeHeaders, modifyRequest, openIntProxyLink} from '@opensdks/runtime'
+import type {Link} from '../link.js'
 
-export function authLink(auth: ClientAuthOptions, baseUrl: string): Link {
-  if (!auth) {
+type Indexify<T> = T & Record<string, undefined>
+type AllUnionKeys<T> = keyof UnionToIntersection<{[K in keyof T]: undefined}>
+type NonDiscriminatedUnion<T> = {
+  [K in AllUnionKeys<T> & string]: Indexify<T>[K]
+}
+
+export function authLink(_auth: ClientAuthOptions, baseUrl: string): Link {
+  if (!_auth) {
     // No Op
     return (req, next) => next(req)
   }
+  const auth = _auth as NonDiscriminatedUnion<ClientAuthOptions>
 
   if (auth.openInt) {
     return openIntProxyLink(auth.openInt, baseUrl)

packages/fetch-links/package.json

@@ -42,7 +42,8 @@
   "dependencies": {},
   "devDependencies": {
     "axios": "^1.6.2",
-    "concurrently": "^8.2.2"
+    "concurrently": "^8.2.2",
+    "type-fest": "^4.28.0"
   },
   "publishConfig": {
     "access": "public"

packages/runtime/createClient.spec.ts

@@ -55,8 +55,15 @@ test('application/x-www-form-urlencoded bracket style', () => {
   )
 })
 
-test('expect links array to have 2 elements by default', () => {
+test('expect links array to have 1 elements by default', () => {
   const client = createClient()
+  expect(client.links.length).toBe(1)
+})
+
+test('expect links array to have 2 elements when auth is present', () => {
+  const client = createClient({
+    auth: {basic: {username: 'user', password: 'pass'}},
+  })
   expect(client.links.length).toBe(2)
 })
 

packages/runtime/createClient.ts

@@ -16,12 +16,12 @@ import {flattenNestedObject} from './utils.js'
 type _ClientOptions = NonNullable<Parameters<typeof _createClient>[0]>
 
 export type ClientAuthOptions =
-  | {openInt?: OpenIntProxyLinkOptions}
+  | {openInt: OpenIntProxyLinkOptions}
   /** to be passed as Authorization header as a bearer token, Should handle automatic refreshing */
-  | {oauth?: {accessToken: string; refreshToken?: string; expiresAt?: number}}
-  | {basic?: {username: string; password: string}}
+  | {oauth: {accessToken: string; refreshToken?: string; expiresAt?: number}}
+  | {basic: {username: string; password: string}}
   /** non oauth / directly specifying bearer token */
-  | {bearer?: string}
+  | {bearer: string}
 
 export interface ClientOptions extends _ClientOptions {
   links?: Link[] | ((defaultLinks: Link[]) => Link[])
@@ -42,7 +42,9 @@ export function createClient<Paths extends {}>({
   ...clientOptions
 }: ClientOptions = {}) {
   const defaultLinks = [
-    authLink(clientOptions.auth ?? {}, clientOptions.baseUrl ?? ''),
+    ...(clientOptions.auth
+      ? [authLink(clientOptions.auth, clientOptions.baseUrl ?? '')]
+      : []),
     fetchLink(),
   ]
   const links =