Add implementation of Next.js server cookies storage

package.json

@@ -95,6 +95,11 @@
       "import": "./next/index.mjs",
       "require": "./next/index.js"
     },
+    "./next/server": {
+      "types": "./next/server.d.ts",
+      "import": "./next/server.mjs",
+      "require": "./next/server.js"
+    },
     ".": {
       "types": "./index.d.ts",
       "import": "./index.mjs",

src/next/server.ts

@@ -0,0 +1,25 @@
+import type { StorageRepository } from "../types";
+import { cookies } from "next/headers";
+
+export const getNextServerCookiesStorage = (): StorageRepository => {
+  const cache = new Map<string, string>();
+  return {
+    getItem(key) {
+      // We need to cache the value because cookies() returns stale data
+      // if cookies().set(…) is called in the same request.
+      return cache.get(key) ?? cookies().get(key)?.value ?? null;
+    },
+    removeItem(key) {
+      cache.delete(key);
+      cookies().delete(key);
+    },
+    setItem(key, value) {
+      try {
+        cache.set(key, value);
+        cookies().set(key, value, { httpOnly: true, sameSite: "lax" });
+      } catch {
+        // noop
+      }
+    },
+  };
+};