diff --git a/bun.lockb b/bun.lockb
index e4c6d7d..782352a 100755
Binary files a/bun.lockb and b/bun.lockb differ
diff --git a/package.json b/package.json
index b3ad55e..31db37c 100644
--- a/package.json
+++ b/package.json
@@ -9,6 +9,7 @@
   "module": "src/main.ts",
   "devDependencies": {
     "@tsconfig/node18": "^18.2.2",
+    "@types/tough-cookie": "^4.0.3",
     "@typescript-eslint/eslint-plugin": "^6.7.2",
     "@typescript-eslint/parser": "^6.7.2",
     "bun-types": "^1.0.2",
@@ -44,6 +45,8 @@
   },
   "dependencies": {
     "fp-ts": "^2.16.1",
+    "http-cookie-agent": "^5.0.4",
+    "tough-cookie": "^4.1.3",
     "undici": "^5.25.3"
   }
 }
diff --git a/src/loans.ts b/src/loans.ts
index 3adab57..aab27e3 100644
--- a/src/loans.ts
+++ b/src/loans.ts
@@ -1,6 +1,8 @@
 import { pipe } from "fp-ts/function";
 import * as TE from "fp-ts/TaskEither";
-import { Dispatcher, request } from "undici";
+import { CookieAgent } from "http-cookie-agent/undici";
+import { CookieJar } from "tough-cookie";
+import { Dispatcher, FormData, request } from "undici";
 
 // type Loans = {
 //   username: string;
@@ -10,15 +12,42 @@ import { Dispatcher, request } from "undici";
 // }
 
 export const listLoans = (): TE.TaskEither<Error, string> => {
-  const post = (url: string) =>
-    TE.tryCatch(
-      () => request(url),
-      (reason) => new Error(`Unable to fetch loans: ${String(reason)}`),
-    );
-  const parseJson = TE.tryCatchK<Error, [Dispatcher.ResponseData], string>(
-    (resp) => resp.body.text(),
-    (reason) => new Error(`Unable to : ${String(reason)}`),
+  return pipe(
+    authenticate(
+      "http://www.mediathequederoubaix.fr",
+      // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
+      process.env.USERNAME!,
+      // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
+      process.env.PASSWORD!,
+    ),
+    TE.chain(getText),
   );
-
-  return pipe(post("http://www.mediathequederoubaix.fr"), TE.chain(parseJson));
 };
+
+const authenticate = (url: string, user: string, pass: string) =>
+  TE.tryCatch(
+    () => {
+      const cookieJar = new CookieJar();
+      const agent = new CookieAgent({ cookies: { jar: cookieJar } });
+
+      const data = new FormData();
+      data.set("name", user);
+      data.set("pass", pass);
+      data.set("form_id", "user_login");
+
+      return request(url, {
+        method: "POST",
+        body: data,
+        dispatcher: agent,
+      });
+    },
+    (reason) => new Error(`Unable to authenticate: ${String(reason)}`),
+  );
+const getText = TE.tryCatchK<Error, [Dispatcher.ResponseData], string>(
+  async (resp) => {
+    const text = await resp.body.text();
+    console.log("text", text);
+    return text;
+  },
+  (reason) => new Error(`Unable to : ${String(reason)}`),
+);
diff --git a/src/test.ts b/src/test.ts
new file mode 100644
index 0000000..9988220
--- /dev/null
+++ b/src/test.ts
@@ -0,0 +1,15 @@
+import { FormData, request } from "undici";
+
+const data = new FormData();
+data.set("name", "X0002412030");
+data.set("pass", "03/11/1980");
+data.set("form_id", "user_login");
+
+const resp = await request("http://www.mediathequederoubaix.fr", {
+  method: "POST",
+  body: data,
+});
+
+const text = await resp.body.text();
+
+console.log("text", text);