diff --git a/src/Controller/Session/SessionScalarController.php b/src/Controller/Session/SessionScalarController.php
index dadce4d..fecd94c 100644
--- a/src/Controller/Session/SessionScalarController.php
+++ b/src/Controller/Session/SessionScalarController.php
@@ -32,4 +32,14 @@ public function countSessions(
 
         return $this->json($count);
     }
+
+    #[Route('/sessions/streak', name: 'sessions_streak', methods: ['GET'])]
+    public function getStreak(
+        SessionRepository $sessionRepository,
+        #[CurrentUser] User $user,
+    ) {
+        $streak = $sessionRepository->getStreak($user);
+
+        return $this->json($streak);
+    }
 }
diff --git a/src/Controller/TestController.php b/src/Controller/TestController.php
index c731530..3f1a7d8 100644
--- a/src/Controller/TestController.php
+++ b/src/Controller/TestController.php
@@ -6,9 +6,12 @@
 
 use App\Attribute\RelativeToEntity;
 use App\Entity\Topic;
-use App\Model\Period;
+use App\Entity\User;
+use App\Repository\SessionRepository;
+use DateTimeImmutable;
 use Symfony\Component\HttpFoundation\JsonResponse;
 use Symfony\Component\Routing\Attribute\Route;
+use Symfony\Component\Security\Http\Attribute\CurrentUser;
 
 #[Route('/_internal', name: 'api_', format: 'json')]
 #[RelativeToEntity(Topic::class)]
@@ -16,8 +19,12 @@ class TestController extends AbstractRestController
 {
     #[Route('/test', name: 'test')]
     public function index(
-        ?Period $period,
+        SessionRepository $sessionRepository,
+        #[CurrentUser]
+        User $user
     ): JsonResponse {
-        return $this->json($period);
+        $streak = $sessionRepository->getStreak($user);
+
+        return $this->json($streak);
     }
 }
diff --git a/src/Model/Streak.php b/src/Model/Streak.php
new file mode 100644
index 0000000..fd35707
--- /dev/null
+++ b/src/Model/Streak.php
@@ -0,0 +1,15 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Model;
+
+readonly class Streak
+{
+    public function __construct(
+        public int $current,
+        public int $longest,
+        public bool $inDanger,
+    ) {
+    }
+}
diff --git a/src/Repository/SessionRepository.php b/src/Repository/SessionRepository.php
index b132b41..bbbd786 100644
--- a/src/Repository/SessionRepository.php
+++ b/src/Repository/SessionRepository.php
@@ -11,7 +11,9 @@
 use App\Model\Page;
 use App\Model\Paginator;
 use App\Model\Period;
+use App\Model\Streak;
 use App\Trait\UseRepositoryExtension;
+use DateTimeImmutable;
 use Doctrine\Bundle\DoctrineBundle\Repository\ServiceEntityRepository;
 use Doctrine\Persistence\ManagerRegistry;
 
@@ -87,4 +89,73 @@ public function countAllByDate(User $user, ?Period $period)
             ->getQuery()
             ->getResult();
     }
+
+    public function getStreak(User $user)
+    {
+        $datesRaw = $this->createQueryBuilder('s')
+            ->select('DATE(s.startedAt) AS date') // Select only the date
+            ->leftJoin('s.reviews', 'r') // Join with the reviews table
+            ->where('s.author = :user') // Filter by the author
+            ->andWhere('r.id IS NOT NULL') // Ensure at least one review exists
+            ->andWhere('r.reset = :reset') // And the review is not a reset
+            // ->groupBy('date') // Group by the date
+            ->setParameter('user', $user) // Bind the user parameter
+            ->setParameter('reset', false) // Bind the reset parameter
+            ->getQuery()
+            ->getResult();
+
+        if (count($datesRaw) === 0) {
+            return new Streak(current: 0, longest: 0, inDanger: true);
+        }
+
+        $dates = array_map(fn ($item) => new DateTimeImmutable($item['date']), $datesRaw);
+        usort($dates, fn ($a, $b) => $a <=> $b);
+
+        $previousDate = null;
+        $longestStreak = 0;
+        $currentStreak = 0;
+        $currentPeriod = 0;
+        $today = new DateTimeImmutable();
+        $streakIncludesToday = false;
+
+        foreach ($dates as $date) {
+            if ($previousDate) {
+                $interval = $date->diff($previousDate)->days;
+
+                if ($interval === 1) { // Consecutive day
+                    $currentPeriod++;
+                } else { // Streak breaks
+                    $longestStreak = max($longestStreak, $currentPeriod);
+                    $currentPeriod = 1; // Reset streak
+                }
+            } else {
+                $currentPeriod = 1; // First date starts the streak
+            }
+
+            // Check if the current streak includes today or yesterday
+            if ($date->format('Y-m-d') === $today->format('Y-m-d')) {
+                $streakIncludesToday = true;
+                $currentStreak = $currentPeriod;
+            } elseif ($date->format('Y-m-d') === $today->modify('-1 day')->format('Y-m-d') && !$streakIncludesToday) {
+                $streakIncludesToday = true;
+                $currentStreak = $currentPeriod;
+            }
+
+            $previousDate = $date;
+        }
+
+        // Final check to update the longest streak
+        $longestStreak = max($longestStreak, $currentPeriod);
+
+        // If today or yesterday doesn't continue the streak, set current streak to 0
+        if (!$streakIncludesToday) {
+            $currentStreak = 0;
+        }
+
+        return new Streak(
+            current: $currentStreak,
+            longest: $longestStreak,
+            inDanger: end($dates)?->format('Y-m-d') !== $today->format('Y-m-d'),
+        );
+    }
 }