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import React, { useState, useEffect } from 'react';
import { LineChart, Line, XAxis, YAxis, CartesianGrid, Tooltip, Legend, ResponsiveContainer } from 'recharts';
const App = () => {
const [prices, setPrices] = useState([]);
const [rawData, setRawData] = useState('');
const [error, setError] = useState(null);
const testingString = "hiiii";
useEffect(() => {
const fetchPrices = async () => {
try {
console.log('Fetching prices...');
const response = await fetch('/api/prices', {
method: 'GET',
headers: {
'Content-Type': 'application/json',
},
});
console.log('Response status:', response.status);
console.log('Response headers:', response.headers);
if (!response.ok) {
throw new Error(`HTTP error! status: ${response.status}`);
}
const data = await response.json();
console.log('Fetched data:', data);
setPrices(data);
setRawData(JSON.stringify(data, null, 2));
setError(null);
} catch (error) {
console.error('Failed to fetch prices:', error);
setError(error.toString());
setRawData('');
}
};
fetchPrices();
const interval = setInterval(fetchPrices, 5000);
return () => clearInterval(interval);
}, []);
// prep data
const chartData = prices.map(item => {
const parsedItem = JSON.parse(item);
return {
price: parsedItem.price,
time: new Date(parsedItem.timestamp * 1000).toLocaleTimeString()
};
}).reverse(); // show oldest data first
return (
<div>
<h1>price</h1>
<p>test stuff: {testingString}</p>
{error && <p>Error: {error}</p>}
<pre>{rawData}</pre>
<h2>Price Graph</h2>
<ResponsiveContainer width="100%" height={400}>
<LineChart
data={chartData}
margin={{
top: 5,
right: 30,
left: 20,
bottom: 5,
}}
>
<CartesianGrid strokeDasharray="3 3" />
<XAxis dataKey="time" />
<YAxis domain={['auto', 'auto']} />
<Tooltip />
<Legend />
<Line type="monotone" dataKey="price" stroke="#8884d8" activeDot={{ r: 8 }} />
</LineChart>
</ResponsiveContainer>
</div>
);
};
export default App;
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