diff --git a/package-lock.json b/package-lock.json
index 07305f5..421d9c3 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -3982,7 +3982,8 @@
         },
         "ansi-regex": {
           "version": "2.1.1",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "aproba": {
           "version": "1.2.0",
@@ -4000,11 +4001,13 @@
         },
         "balanced-match": {
           "version": "1.0.0",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "brace-expansion": {
           "version": "1.1.11",
           "bundled": true,
+          "optional": true,
           "requires": {
             "balanced-match": "^1.0.0",
             "concat-map": "0.0.1"
@@ -4017,15 +4020,18 @@
         },
         "code-point-at": {
           "version": "1.1.0",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "concat-map": {
           "version": "0.0.1",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "console-control-strings": {
           "version": "1.1.0",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "core-util-is": {
           "version": "1.0.2",
@@ -4128,7 +4134,8 @@
         },
         "inherits": {
           "version": "2.0.3",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "ini": {
           "version": "1.3.5",
@@ -4138,6 +4145,7 @@
         "is-fullwidth-code-point": {
           "version": "1.0.0",
           "bundled": true,
+          "optional": true,
           "requires": {
             "number-is-nan": "^1.0.0"
           }
@@ -4150,17 +4158,20 @@
         "minimatch": {
           "version": "3.0.4",
           "bundled": true,
+          "optional": true,
           "requires": {
             "brace-expansion": "^1.1.7"
           }
         },
         "minimist": {
           "version": "0.0.8",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "minipass": {
           "version": "2.3.5",
           "bundled": true,
+          "optional": true,
           "requires": {
             "safe-buffer": "^5.1.2",
             "yallist": "^3.0.0"
@@ -4177,6 +4188,7 @@
         "mkdirp": {
           "version": "0.5.1",
           "bundled": true,
+          "optional": true,
           "requires": {
             "minimist": "0.0.8"
           }
@@ -4249,7 +4261,8 @@
         },
         "number-is-nan": {
           "version": "1.0.1",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "object-assign": {
           "version": "4.1.1",
@@ -4259,6 +4272,7 @@
         "once": {
           "version": "1.4.0",
           "bundled": true,
+          "optional": true,
           "requires": {
             "wrappy": "1"
           }
@@ -4334,7 +4348,8 @@
         },
         "safe-buffer": {
           "version": "5.1.2",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "safer-buffer": {
           "version": "2.1.2",
@@ -4364,6 +4379,7 @@
         "string-width": {
           "version": "1.0.2",
           "bundled": true,
+          "optional": true,
           "requires": {
             "code-point-at": "^1.0.0",
             "is-fullwidth-code-point": "^1.0.0",
@@ -4381,6 +4397,7 @@
         "strip-ansi": {
           "version": "3.0.1",
           "bundled": true,
+          "optional": true,
           "requires": {
             "ansi-regex": "^2.0.0"
           }
@@ -4419,11 +4436,13 @@
         },
         "wrappy": {
           "version": "1.0.2",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         },
         "yallist": {
           "version": "3.0.3",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         }
       }
     },
diff --git a/src/controllers/product.controller.js b/src/controllers/product.controller.js
index ba000db..480345c 100755
--- a/src/controllers/product.controller.js
+++ b/src/controllers/product.controller.js
@@ -80,7 +80,7 @@ class ProductController {
   }
 
   /**
-   * get all products by caetgory
+   * get all products by category
    *
    * @static
    * @param {object} req express request object
@@ -215,7 +215,12 @@ class ProductController {
    */
   static async getAllCategories(req, res, next) {
     // Implement code to get all categories here
-    return res.status(200).json({ message: 'this works' });
+    try {
+      const categories = await Category.findAll();
+      return res.status(200).json(categories);
+    } catch (error) {
+      return next(error);
+    }
   }
 
   /**
@@ -225,9 +230,21 @@ class ProductController {
    * @param {*} next
    */
   static async getSingleCategory(req, res, next) {
-    const { category_id } = req.params;  // eslint-disable-line
-    // implement code to get a single category here
-    return res.status(200).json({ message: 'this works' });
+    const { category_id } = req.params; // eslint-disable-line
+    try {
+      const category = await Category.findByPk(category_id);
+      if (category) {
+        return res.status(200).json(category);
+      }
+      return res.status(404).json({
+        error: {
+          status: 404,
+          message: `Category with id ${category_id} does not exist`,  // eslint-disable-line
+        }
+      });
+    } catch (error) {
+      return next(error);
+    }
   }
 
   /**
@@ -237,9 +254,17 @@ class ProductController {
    * @param {*} next
    */
   static async getDepartmentCategories(req, res, next) {
-    const { department_id } = req.params;  // eslint-disable-line
-    // implement code to get categories in a department here
-    return res.status(200).json({ message: 'this works' });
+    try {
+      const { department_id } = req.params; // eslint-disable-line
+      const categories = await Category.findAll({
+        where: {
+          department_id,
+        },
+      });
+      return res.status(200).json(categories);
+    } catch (error) {
+      return next(error);
+    }
   }
 }
 
diff --git a/src/routes/api/product.route.js b/src/routes/api/product.route.js
index c1436b1..bfd1787 100755
--- a/src/routes/api/product.route.js
+++ b/src/routes/api/product.route.js
@@ -12,7 +12,8 @@ router.get('/products/inDepartment/:department_id', ProductController.getProduct
 router.get('/departments', ProductController.getAllDepartments);
 router.get('/departments/:department_id', ProductController.getDepartment);
 router.get('/categories', ProductController.getAllCategories);
-router.get('/categories/:category_id');
+router.get('/categories/:category_id', ProductController.getSingleCategory);
 router.get('/categories/inDepartment/:department_id', ProductController.getDepartmentCategories);
+router.get('/categories/inProduct/:product_id', ProductController.getProductsByCategory);
 
 export default router;