hw added

7_react/react2/week1/my-app/src/App.css

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+/* App.css */
+body {
+  font-family: "Arial", sans-serif;
+  margin: 0;
+  padding: 0;
+  background-color: #f4f4f4;
+}
+
+.container {
+  max-width: 800px;
+  margin: 50px auto;
+  padding: 20px;
+  background-color: #fff;
+  box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
+  border-radius: 5px;
+}
+
+input {
+  padding: 10px;
+  font-size: 16px;
+  margin-right: 10px;
+}
+
+button {
+  padding: 10px 20px;
+  font-size: 16px;
+  background-color: #4caf50;
+  color: #fff;
+  border: none;
+  cursor: pointer;
+  border-radius: 5px;
+}
+
+button:hover {
+  background-color: #45a049;
+}
+
+ul {
+  list-style: none;
+  padding: 0;
+}
+
+li {
+  margin: 10px 0;
+  padding: 10px;
+  background-color: #f0f0f0;
+  border-radius: 5px;
+}
+
+p {
+  font-size: 16px;
+  margin: 10px 0;
+}
+
+.loading {
+  font-size: 18px;
+  color: #3498db;
+}
+
+.error {
+  font-size: 18px;
+  color: #e74c3c;
+}
+
+.no-results {
+  font-size: 18px;
+  color: #2ecc71;
+}

7_react/react2/week1/my-app/src/App.js

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+// App.js
+import React, { useState } from "react";
+import { useGithubContext } from "./Context/GithubContext";
+import "./App.css";
+
+const App = () => {
+  const { users, loading, error, searchUsers } = useGithubContext();
+  const [query, setQuery] = useState("");
+
+  const handleSearch = () => {
+    searchUsers(query);
+  };
+
+  return (
+    <div>
+      <header>
+        <h1>Github User Searcher</h1>
+      </header>
+
+      <div>
+        <input
+          type="text"
+          value={query}
+          onChange={(e) => setQuery(e.target.value)}
+        />
+        <button onClick={handleSearch}>Search</button>
+
+        {loading && <p>Loading...</p>}
+        {error && <p>Error: {error}</p>}
+        {users.length === 0 && !loading && !error && <p>No results...</p>}
+
+        <ul>
+          {users.map((user) => (
+            <li key={user.id}>{user.login}</li>
+          ))}
+        </ul>
+      </div>
+    </div>
+  );
+};
+
+export default App;

7_react/react2/week1/my-app/src/Context/GithubContext.js

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+// GithubContext.js
+import React, { createContext, useReducer, useContext } from "react";
+
+const GithubContext = createContext();
+
+const initialState = {
+  users: [],
+  loading: false,
+  error: null,
+};
+
+const githubReducer = (state, action) => {
+  switch (action.type) {
+    case "SEARCH_LOADING":
+      return { ...state, loading: true, error: null };
+    case "SEARCH_SUCCESS":
+      return { ...state, users: action.payload, loading: false, error: null };
+    case "SEARCH_ERROR":
+      return { ...state, loading: false, error: action.payload };
+    default:
+      return state;
+  }
+};
+
+const GithubProvider = ({ children }) => {
+  const [state, dispatch] = useReducer(githubReducer, initialState);
+
+  const searchUsers = async (query) => {
+    try {
+      dispatch({ type: "SEARCH_LOADING" });
+      const response = await fetch(
+        `https://api.github.com/search/users?q=${query}`
+      );
+      const data = await response.json();
+
+      if (data.items) {
+        dispatch({ type: "SEARCH_SUCCESS", payload: data.items });
+      } else {
+        dispatch({ type: "SEARCH_ERROR", payload: "No results..." });
+      }
+    } catch (error) {
+      dispatch({
+        type: "SEARCH_ERROR",
+        payload: `Error fetching: ${error.message}`,
+      });
+    }
+  };
+
+  return (
+    <GithubContext.Provider value={{ ...state, searchUsers }}>
+      {children}
+    </GithubContext.Provider>
+  );
+};
+
+const useGithubContext = () => {
+  const context = useContext(GithubContext);
+  if (!context) {
+    throw new Error("useGithubContext must be used within a GithubProvider");
+  }
+  return context;
+};
+
+export { GithubProvider, useGithubContext };

7_react/react2/week1/my-app/src/components/useGithubContext

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+// App.js
+import React, { useState } from "react";
+import { useGithubContext } from "../Context/GithubContext";
+
+const App = () => {
+  const { users, loading, error, searchUsers } = useGithubContext();
+  const [query, setQuery] = useState("");
+
+  const handleSearch = () => {
+    searchUsers(query);
+  };
+
+  return (
+    <div>
+      <input
+        type="text"
+        value={query}
+        onChange={(e) => setQuery(e.target.value)}
+      />
+      <button onClick={handleSearch}>Search</button>
+
+      {loading && <p>Loading...</p>}
+      {error && <p>Error: {error}</p>}
+      {users.length === 0 && !loading && !error && <p>No results...</p>}
+
+      <ul>
+        {users.map((user) => (
+          <li key={user.id}>{user.login}</li>
+        ))}
+      </ul>
+    </div>
+  );
+};
+
+export default App;

7_react/react2/week1/my-app/src/index.css

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+body {
+  margin: 0;
+  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
+    'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue',
+    sans-serif;
+  -webkit-font-smoothing: antialiased;
+  -moz-osx-font-smoothing: grayscale;
+}
+
+code {
+  font-family: source-code-pro, Menlo, Monaco, Consolas, 'Courier New',
+    monospace;
+}

7_react/react2/week1/my-app/src/index.js

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+// index.js
+import React from "react";
+import ReactDOM from "react-dom";
+import App from "./App";
+import { GithubProvider } from "./Context/GithubContext";
+
+ReactDOM.render(
+  <React.StrictMode>
+    <GithubProvider>
+      <App />
+    </GithubProvider>
+  </React.StrictMode>,
+  document.getElementById("root")
+);

7_react/react2/week1/my-app/src/reportWebVitals.js

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+const reportWebVitals = onPerfEntry => {
+  if (onPerfEntry && onPerfEntry instanceof Function) {
+    import('web-vitals').then(({ getCLS, getFID, getFCP, getLCP, getTTFB }) => {
+      getCLS(onPerfEntry);
+      getFID(onPerfEntry);
+      getFCP(onPerfEntry);
+      getLCP(onPerfEntry);
+      getTTFB(onPerfEntry);
+    });
+  }
+};
+
+export default reportWebVitals;

7_react/react2/week1/my-app/src/setupTests.js

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+// jest-dom adds custom jest matchers for asserting on DOM nodes.
+// allows you to do things like:
+// expect(element).toHaveTextContent(/react/i)
+// learn more: https://github.com/testing-library/jest-dom
+import '@testing-library/jest-dom';