categories requests has been done except product category

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);
+    }
   }
 }
 

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;