fix: move and refactor to reduce duplicate code

src/session-adapters/cookieAdapter.ts

@@ -0,0 +1,38 @@
+import { expireCookie, getCookie, setCookie, verifyData } from '../utils'
+import jwt from 'jsonwebtoken'
+import { type Adapter } from '../storyblok-auth-api/AuthHandlerParams'
+
+const clientSecret = process.env['CLIENT_SECRET'] || ''
+
+export const cookieAdapter: Adapter = {
+  getItem: ({ req, key }) => {
+    const cookie = getCookie(req, key)
+
+    if (!cookie) {
+      return undefined
+    }
+
+    //TODO: fix typing
+    return verifyData(clientSecret)(cookie) as object
+  },
+  setItem: ({ req, res, key, value }) => {
+    const currentSession = cookieAdapter.getItem({ req, res, key })
+
+    // TODO: Improve readability
+    // TODO: improve checking as user might select their own key and not sb.auth
+    const isSession = key === 'sb.auth'
+    const data = isSession
+      ? {
+          sessions: currentSession ? [currentSession, value] : [value],
+        }
+      : value
+
+    const signedData = jwt.sign({ data }, clientSecret)
+    setCookie(res, key, signedData)
+  },
+  hasItem: ({ req, res, key }) =>
+    cookieAdapter.getItem({ req, res, key }) !== undefined,
+  removeItem: ({ res, key }) => {
+    expireCookie(res, key)
+  },
+}

src/storyblok-auth-api/session-adapters/createInternalAdapter.ts → src/session-adapters/createInternalAdapter.ts

@@ -1,5 +1,8 @@
 import http from 'http'
-import { Adapter, InternalAdapter } from '../AuthHandlerParams'
+import {
+  Adapter,
+  InternalAdapter,
+} from '../storyblok-auth-api/AuthHandlerParams'
 
 export const createInternalAdapter = ({
   req,

src/session/sessionCookieStore.ts

@@ -2,8 +2,8 @@ import { AppSessionCookieStoreFactory, AppSessionStore } from './types'
 import { getAllSessions, getSession, putSession, removeSession } from './crud'
 import { refreshStoredAppSession } from './refreshStoredAppSession'
 import { GetCookie, SetCookie } from '../utils'
-import { createInternalAdapter } from '../storyblok-auth-api/session-adapters/createInternalAdapter'
-import { cookieAdapter } from '../storyblok-auth-api/session-adapters/cookieAdapter'
+import { createInternalAdapter } from '../session-adapters/createInternalAdapter'
+import { cookieAdapter } from '../session-adapters/cookieAdapter'
 
 export const sessionCookieStore: AppSessionCookieStoreFactory =
   (params) =>

src/storyblok-auth-api/auth-handler.ts

@@ -2,8 +2,8 @@ import http from 'http'
 import { AuthHandlerParams } from './AuthHandlerParams'
 import { handleAnyRequest } from './handle-requests'
 import { reconcileNodeResponse } from './reconcileNodeResponse'
-import { createInternalAdapter } from './session-adapters/createInternalAdapter'
-import { cookieAdapter } from './session-adapters/cookieAdapter'
+import { createInternalAdapter } from '../session-adapters/createInternalAdapter'
+import { cookieAdapter } from '../session-adapters/cookieAdapter'
 
 /**
  * Auth handler for Node.js