I’m new to React and I’m making React SSR page. Perfectly working (it’s almost stastic page yet but use JSON datas). Why I can’t here use in my compoment Suspense why I’ve load JSON data?
import React, { Suspense, useEffect, useState } from 'react';
import './interfaces/types';
interface ProductProperties {
[key: string]: {
title: string;
comments: {
comment1: string;
comment2: string;
comment3: string;
comment4: string;
comment5: string;
};
};
}
interface ProductPropertyProps {
id: string;
rating: number;
comment?: string;
}
const ProductProperty: React.FC<ProductPropertyProps> = ({ id, rating, comment }) => {
const [property, setProperty] = useState<ProductProperties | null>(null);
useEffect(() => {
import('../../data/productProperties.json')
.then((json) => {
setProperty(json.default);
})
.catch((error) => {
console.error("Failed to load JSON file:", error);
});
}, []);
if (property === undefined) {
return null; // Or return a loading spinner or placeholder
}
if (!property) {
return null; // Or return a loading spinner or placeholder
}
const propertyDefinition = property[id];
// TODO: Handle the case when the property definition is not found
if (!propertyDefinition) {
console.error(`No property definition found for id ${id}`);
return null; // Or return a default value or error message
}
const title = propertyDefinition.title;
// Použitie vlastného komentára ak je k dispozícii, inak použitie predvoleného z definície
const finalComment = comment || ((propertyDefinition.comments as unknown) as { [key: string]: string })[`comment${rating}`];
return (
<Suspense fallback={<div>Loading...</div>}>
<div className="product-property">
<div className="product-property-title">{title}</div>
<div className="product-property-rating">
{[...Array(5)].map((_, index) => (
<i key={index} className={`star star-${index < rating ? 'filled' : 'outline'}`}></i>
))}
</div>
<div className="product-property-comment">{finalComment}</div>
</div>
</Suspense>
);
}
export default ProductProperty;
But in App.tsx I can use it
// App.tsx
import React, { Suspense } from 'react';
import Product from './components/product/Product';
import productData from './data/productData.json';
const App: React.FC = () => {
// This will be used later if we want to update the product data
//const [productDataState, setProductData] = useState<ProductData[]>(productData);
return (
<>
{productData.map((product) => (
// Title of product must be unique and therefore can be used as key
<Suspense key={product.title} fallback={
<div className='product-container-fallback'>
<div>Nahrhráva sa produkt. Prosíme chvíľu strpenia</div>
</div>
}>
<button style={{ border: 'none', background: 'none', padding: 0, margin: 0 }}>
<Product productInfo={product} />
</button>
</Suspense >
))
}
</>
);
};
export default App;
It’s some possible? I know that Vite SSR has some limitations yet, but code is so nice generated…
Or…. The page it’s working but I have error in browser console:
Uncaught Error: Hydration failed because the initial UI does not match what was rendered on the server.
Or
Warning: An error occurred during hydration. The server HTML was replaced with client content in .
Thanks for any advice