Initial

frontend/src/App.js

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+import { ThemeProvider, createTheme } from "@mui/material/styles";
+import Container from "@mui/material/Container";
+import Typography from "@mui/material/Typography";
+import { Home } from "./pages/Home";
+
+const darkTheme = createTheme({
+    palette: {
+        mode: "light",
+    },
+});
+
+function App() {
+    return (
+        <ThemeProvider theme={darkTheme}>
+            <Container fixed>
+                <Typography variant="h2" gutterBottom>
+                    Komponiranje frontend demo
+                </Typography>
+                <Home />
+            </Container>
+        </ThemeProvider>
+    );
+}
+
+export default App;

frontend/src/api/common.js

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+import axios from "axios";
+import { API_URL } from "../const";
+
+export class ApiBase {}
+
+const commonHeaders = {
+    "Content-Type": "application/json",
+    Accept: "application/json",
+    "Access-Control-Allow-Origin": "*",
+    "Access-Control-Max-Age": 60,
+    "x-timezone": Intl.DateTimeFormat().resolvedOptions().timeZone,
+};
+
+export const axiosUnauthorizedInstance = axios.create({
+    baseURL: API_URL,
+    timeout: 5000,
+    headers: commonHeaders,
+});
+
+axiosUnauthorizedInstance.interceptors.response.use(
+    (response) => response,
+    (error) => {
+        return Promise.reject(error);
+    }
+);
+
+export const axiosInstance = axios.create({
+    baseURL: API_URL,
+    timeout: 5000,
+    headers: {
+        ...commonHeaders,
+    },
+});

frontend/src/api/index.js

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+export { machinesApi } from "./machines";

frontend/src/api/machines.js

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+import { axiosInstance, ApiBase } from "./common";
+
+class MachinesApi extends ApiBase {
+    list = async () => {
+        return axiosInstance.get(`/machines`, {});
+    };
+    get = async (machineId) => {
+        return axiosInstance.get(`/machines/${machineId}`, {});
+    };
+    listProducts = async (machineId) => {
+        return axiosInstance.get(`/machines/${machineId}/products`, {});
+    };
+}
+
+export const machinesApi = new MachinesApi();

frontend/src/components/Machines.js

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+import * as React from "react";
+import { useState } from "react";
+
+import List from "@mui/material/List";
+import ListItem from "@mui/material/ListItem";
+import ListItemButton from "@mui/material/ListItemButton";
+import ListItemText from "@mui/material/ListItemText";
+import Typography from "@mui/material/Typography";
+import Paper from "@mui/material/Paper";
+
+function Machines({ machines, onSelect }) {
+    const [selectedId, setSelectedId] = useState(null);
+
+    const handleOnClick = (machineName, machineId) => {
+        onSelect(machineName, machineId);
+        setSelectedId(machineId);
+    };
+
+    const machineItems = machines.map((machine) => {
+        return (
+            <ListItem key={machine.id} disablePadding>
+                <ListItemButton
+                    selected={selectedId === machine.id}
+                    onClick={(event) => handleOnClick(machine.name, machine.id)}
+                >
+                    <ListItemText primary={machine.name} />
+                </ListItemButton>
+            </ListItem>
+        );
+    });
+
+    return (
+        <>
+            <Typography variant="h4" gutterBottom>
+                Machines
+            </Typography>
+            <List>
+                <Paper>{machineItems}</Paper>
+            </List>
+        </>
+    );
+}
+
+export { Machines };

frontend/src/const.js

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+export const API_URL = process.env.REACT_APP_BACKEND_API_URL || "http://localhost:10000";

frontend/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;
+}

frontend/src/index.js

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+import React from 'react';
+import ReactDOM from 'react-dom/client';
+import './index.css';
+import App from './App';
+import reportWebVitals from './reportWebVitals';
+
+const root = ReactDOM.createRoot(document.getElementById('root'));
+root.render(
+  <React.StrictMode>
+    <App />
+  </React.StrictMode>
+);
+
+// If you want to start measuring performance in your app, pass a function
+// to log results (for example: reportWebVitals(console.log))
+// or send to an analytics endpoint. Learn more: https://bit.ly/CRA-vitals
+reportWebVitals();

frontend/src/pages/Home.js

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+import * as React from "react";
+import { useState, useEffect } from "react";
+
+import Grid from "@mui/material/Unstable_Grid2";
+
+import { machinesApi } from "../api";
+import { Machines } from "../components/Machines";
+
+function Home() {
+    const [machines, setMachines] = useState([]);
+
+    useEffect(() => {
+        machinesApi.list().then((response) => {
+            setMachines(response.data.machines);
+        });
+    }, []);
+
+    const onMachineSelect = (machineName, machineId) => {
+        console.log("selected:", machineName);
+        machinesApi.listProducts(machineId).then((response) => {
+            console.log(response.data.products);
+        });
+    };
+
+    return (
+        <Grid container spacing={2}>
+            <Grid md={4}>
+                <Machines machines={machines} onSelect={onMachineSelect} />
+            </Grid>
+            <Grid md={8}>...</Grid>
+        </Grid>
+    );
+}
+
+export { Home };

frontend/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;