Solution

src/App.tsx

@@ -1,27 +1,53 @@
-import React from 'react';
+import React, { useState } from 'react';
+import { get5First, getAll, getRedGoods } from './api/goods';
 import './App.scss';
 import { GoodsList } from './GoodsList';
+import { Good } from './types/Good';
 
-// import { getAll, get5First, getRed } from './api/goods';
-// or
-// import * as goodsAPI from './api/goods';
+export const App: React.FC = () => {
+  const [goods, setGoods] = useState<Good[]>([]);
 
-export const App: React.FC = () => (
-  <div className="App">
-    <h1>Dynamic list of Goods</h1>
+  const handleLoadAll = () => {
+    getAll().then(goodsFromServer => setGoods(goodsFromServer));
+  };
 
-    <button type="button" data-cy="all-button">
-      Load all goods
-    </button>
+  const handleLoadFirstFive = () => {
+    get5First().then(firstFiveGoods => setGoods(firstFiveGoods));
+  };
 
-    <button type="button" data-cy="first-five-button">
-      Load 5 first goods
-    </button>
+  const handleLoadOnlyRed = () => {
+    getRedGoods().then(onlyRedGoods => setGoods(onlyRedGoods));
+  };
 
-    <button type="button" data-cy="red-button">
-      Load red goods
-    </button>
+  return (
+    <div className="App">
+      <h1>Dynamic list of Goods</h1>
 
-    <GoodsList goods={[]} />
-  </div>
-);
+      <button
+        type="button"
+        data-cy="all-button"
+        onClick={handleLoadAll}
+      >
+        Load all goods
+      </button>
+
+      <button
+        type="button"
+        data-cy="first-five-button"
+        onClick={handleLoadFirstFive}
+      >
+        Load 5 first goods
+      </button>
+
+      <button
+        type="button"
+        data-cy="red-button"
+        onClick={handleLoadOnlyRed}
+      >
+        Load red goods
+      </button>
+
+      <GoodsList goods={goods} />
+    </div>
+  );
+};

src/GoodsList.tsx

@@ -8,7 +8,11 @@ type Props = {
 export const GoodsList: React.FC<Props> = ({ goods }) => (
   <ul>
     {goods.map(good => (
-      <li key={good.id} data-cy="good">
+      <li
+        key={good.id}
+        data-cy="good"
+        style={{ color: good.color }}
+      >
         {good.name}
       </li>
     ))}

src/api/goods.ts

@@ -10,10 +10,18 @@ export function getAll(): Promise<Good[]> {
 
 export const get5First = () => {
   return getAll()
-    .then(goods => goods); // sort and get the first 5
+    .then(goods => {
+      goods.sort((a, b) => a.name.localeCompare(b.name));
+
+      return goods.slice(0, 5);
+    });
 };
 
 export const getRedGoods = () => {
   return getAll()
-    .then(goods => goods); // get only red
+    .then(goods => {
+      const filteredGoods = goods.filter(good => good.color === 'red');
+
+      return filteredGoods;
+    });
 };