diff --git a/package.json b/package.json
index d0d3f6c..0178e5f 100644
--- a/package.json
+++ b/package.json
@@ -23,7 +23,7 @@
     "morgan": "^1.10.0",
     "pg": "^8.2.1",
     "pg-hstore": "^2.3.3",
-    "sequelize": "^6.3.0",
+    "sequelize": "^6.3.5",
     "sequelize-cli": "^6.2.0"
   },
   "devDependencies": {
diff --git a/src/controllers/auth.js b/src/controllers/auth.js
index 85ab272..2a8d718 100644
--- a/src/controllers/auth.js
+++ b/src/controllers/auth.js
@@ -48,3 +48,35 @@ exports.signup = async (req, res, next) => {
       .catch((error) => next(error));
   });
 };
+exports.signIn = (req, res, next) => {
+  const { email, password, username } = req.body;
+  model.User.findOne({
+    where: {
+      email,
+
+    },
+
+  }).then((user) => {
+    if (!user) {
+      res.status(403).json({
+        error: 'user with that email doesn\'t exist !',
+      });
+    }
+    if (user) {
+      bcrypt.compare(password, user.password, (err, result) => {
+        if (!result) {
+          res.status(401).json({
+            message: 'password doesn\'t match',
+          });
+        } else {
+          const token = jwt.sign({ username }, process.env.secret);
+
+          return res.status(201).json({ token });
+        }
+        return res.status(400).json(err);
+      });
+    }
+  }).catch((error) => {
+    next(error);
+  });
+};
diff --git a/src/routes/auth.js b/src/routes/auth.js
index 56d037b..a04fdd4 100644
--- a/src/routes/auth.js
+++ b/src/routes/auth.js
@@ -2,8 +2,8 @@ import express from 'express';
 import { signupValidator } from '../validator/index';
 
 const router = express.Router();
-const { signup } = require('../controllers/auth');
+const { signup, signIn } = require('../controllers/auth');
 
 router.post('/auth/signup', signupValidator, signup);
-
+router.post('/auth/signin', signIn);
 export default router;
diff --git a/yarn.lock b/yarn.lock
index 2e67e7d..b706d40 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -3421,9 +3421,10 @@ sequelize-pool@^6.0.0:
   version "6.1.0"
   resolved "https://registry.yarnpkg.com/sequelize-pool/-/sequelize-pool-6.1.0.tgz#caaa0c1e324d3c2c3a399fed2c7998970925d668"
 
-sequelize@^6.3.0:
-  version "6.3.3"
-  resolved "https://registry.yarnpkg.com/sequelize/-/sequelize-6.3.3.tgz#930ab26f9e928d9bf2fe1fe477b428a092fef063"
+sequelize@^6.3.5:
+  version "6.3.5"
+  resolved "https://registry.yarnpkg.com/sequelize/-/sequelize-6.3.5.tgz#80e3db7ac8b76d98c45ca93334197eb6e2335158"
+  integrity sha512-MiwiPkYSA8NWttRKAXdU9h0TxP6HAc1fl7qZmMO/VQqQOND83G4nZLXd0kWILtAoT9cxtZgFqeb/MPYgEeXwsw==
   dependencies:
     debug "^4.1.1"
     dottie "^2.0.0"