chore: Add create product functionality patch task

.vscode/tasks.json

@@ -0,0 +1,11 @@
+{
+  "version": "2.0.0",
+  "tasks": [
+    {
+      "label": "Apply products_patch.diff",
+      "type": "shell",
+      "command": "git apply products_patch.diff",
+      "problemMatcher": []
+    }
+  ]
+}

products_patch.diff

@@ -0,0 +1,58 @@
+diff --git a/model/products.js b/model/products.js
+index 6df3f92..9366003 100644
+--- a/model/products.js
++++ b/model/products.js
+@@ -49,12 +49,23 @@ function get_purcharsed(username) {
+
+ }
+
++function create(product) {
++    var q = "INSERT INTO products(name, description, price) VALUES('" +
++            product.name + "', '" +
++            product.description + "', '" +
++            product.price +
++            "');";
++
++    return db.one(q);
++}
++
+ var actions = {
+     "list": list_products,
+     "getProduct": getProduct,
+     "search": search,
+     "purchase": purchase,
+-    "getPurchased": get_purcharsed
++    "getPurchased": get_purcharsed,
++    "create": create
+ }
+
+ module.exports = actions;
+diff --git a/routes/products.js b/routes/products.js
+index 814f834..4d5d1fb 100644
+--- a/routes/products.js
++++ b/routes/products.js
+@@ -144,6 +144,24 @@ router.all('/products/buy', function(req, res, next) {
+
+ });
+
++router.all('/products/create', function(req, res, next) {
++    let params = null;
++    if (req.method == "GET"){
++        params = url.parse(req.url, true).query;
++    } else {
++        params = req.body;
++    }
++
++    let product = null;
++    product = {
++        name: params.name,
++        description: params.description,
++        price: params.price,
++        image: params.image,
++        username: req.session.user_name
++    }
+
++    db_products.create(product)
++});
+
+ module.exports = router;