Code Along For Crud

src/components/Item.js

@@ -1,16 +1,41 @@
-import React from "react";
+import React from "react"
+
+function Item({ item, onUpdateItem, onDeleteItem }) {
+  function handleAddToCart() {
+    fetch(`http://localhost:4000/items/${item.id}`, {
+      method: "PATCH",
+      headers: {
+        "Content-Type": "application/json",
+      },
+      body: JSON.stringify({ isInCart: !item.isInCart }),
+    })
+      .then((response) => response.json())
+      .then((updatedItemData) => onUpdateItem(updatedItemData))
+  }
+
+  function handleDeleteClick() {
+    fetch(`http://localhost:4000/items/${item.id}`, {
+      method: "DELETE",
+    })
+      .then((r) => r.json())
+      .then(() => onDeleteItem(item))
+  }
 
-function Item({ item }) {
   return (
     <li className={item.isInCart ? "in-cart" : ""}>
       <span>{item.name}</span>
       <span className="category">{item.category}</span>
-      <button className={item.isInCart ? "remove" : "add"}>
+      <button
+        className={item.isInCart ? "remove" : "add"}
+        onClick={handleAddToCart}
+      >
         {item.isInCart ? "Remove From" : "Add to"} Cart
       </button>
-      <button className="remove">Delete</button>
+      <button className="remove" onClick={handleDeleteClick}>
+        Delete
+      </button>
     </li>
-  );
+  )
 }
 
-export default Item;
+export default Item

src/components/ItemForm.js

@@ -1,11 +1,29 @@
 import React, { useState } from "react";
 
-function ItemForm() {
+function ItemForm({ onAddItem }) {
   const [name, setName] = useState("");
   const [category, setCategory] = useState("Produce");
 
+  function handleSubmit(event) {
+    event.preventDefault();
+    const itemData = {
+      name: name,
+      category: category,
+      isInCart: false,
+    };
+    fetch("http://localhost:4000/items", {
+      method: "POST",
+      headers: {
+        "Content-Type": "application/json",
+      },
+      body: JSON.stringify(itemData),
+    })
+      .then((response) => response.json())
+      .then((newItemData) => onAddItem(newItemData))
+  }
+
   return (
-    <form className="NewItem">
+    <form className="NewItem" onSubmit={handleSubmit}>
       <label>
         Name:
         <input

src/components/ShoppingList.js

@@ -1,36 +1,66 @@
-import React, { useState } from "react";
-import ItemForm from "./ItemForm";
-import Filter from "./Filter";
-import Item from "./Item";
+import React, { useEffect, useState } from "react"
+import ItemForm from "./ItemForm"
+import Filter from "./Filter"
+import Item from "./Item"
 
 function ShoppingList() {
-  const [selectedCategory, setSelectedCategory] = useState("All");
-  const [items, setItems] = useState([]);
+  const [selectedCategory, setSelectedCategory] = useState("All")
+  const [items, setItems] = useState([])
+
+  useEffect(() => {
+    fetch("http://localhost:4000/items")
+      .then((response) => response.json())
+      .then((itemsData) => setItems(itemsData))
+  }, [])
+
+  function handleDeleteItem(deletedItem) {
+    const updatedItems = items.filter((item) => item.id !== deletedItem.id)
+    setItems(updatedItems)
+  }
+
+  function handleUpdateItem(updatedItemData) {
+    const updatedItems = items.map((item) => {
+      if (item.id === updatedItemData.id) {
+        return updatedItemData
+      } else {
+        return item
+      }
+    })
+    setItems(updatedItems)
+  }
+
+  function handleAddItems(newItem) {
+    setItems([...items, newItem])
+  }
 
   function handleCategoryChange(category) {
-    setSelectedCategory(category);
+    setSelectedCategory(category)
   }
 
   const itemsToDisplay = items.filter((item) => {
-    if (selectedCategory === "All") return true;
-
-    return item.category === selectedCategory;
-  });
+    if (selectedCategory === "All") return true
+    return item.category === selectedCategory
+  })
 
   return (
     <div className="ShoppingList">
-      <ItemForm />
+      <ItemForm onAddItem={handleAddItems} />
       <Filter
         category={selectedCategory}
         onCategoryChange={handleCategoryChange}
       />
       <ul className="Items">
         {itemsToDisplay.map((item) => (
-          <Item key={item.id} item={item} />
+          <Item
+            key={item.id}
+            item={item}
+            onUpdateItem={handleUpdateItem}
+            onDeleteItem={handleDeleteItem}
+          />
         ))}
       </ul>
     </div>
-  );
+  )
 }
 
-export default ShoppingList;
+export default ShoppingList