import axios from "axios";
const NEWS_API_KEY = process.env.NEWS_API_KEY!;
const NEWS_API_BASE_URL = "https://newsapi.org/v2";
// Cache for storing fetched news
let newsCache: any[] = [];
let lastFetchTime = 0;
const CACHE_DURATION = 5 * 60 * 1000; // 5 minutes
interface NewsArticle {
title: string;
source: string;
publishedAt: string;
description?: string;
url?: string;
author?: string;
}
/**
* Fetch top 10 US news headlines
*/
export async function fetchTopHeadlines(
category?: string,
): Promise<NewsArticle[]> {
try {
// Check cache
const now = Date.now();
if (newsCache.length > 0 && now - lastFetchTime < CACHE_DURATION) {
console.error("Returning cached news");
return newsCache.map((article) => ({
title: article.title,
source: article.source.name,
publishedAt: article.publishedAt,
}));
}
// Fetch fresh news
console.error("Fetching fresh news from API");
const params: any = {
country: "us",
pageSize: 10,
apiKey: NEWS_API_KEY,
};
if (category) {
params.category = category;
}
const response = await axios.get(`${NEWS_API_BASE_URL}/top-headlines`, {
params,
});
if (response.data.status !== "ok") {
throw new Error(
`News API error: ${response.data.message || "Unknown error"}`,
);
}
// Update cache
newsCache = response.data.articles;
lastFetchTime = now;
// Return simplified headlines
return newsCache.map((article) => ({
title: article.title,
source: article.source.name,
publishedAt: article.publishedAt,
}));
} catch (error) {
if (axios.isAxiosError(error)) {
throw new Error(`Failed to fetch news: ${error.message}`);
}
throw error;
}
}
/**
* Get detailed information about a specific news article
*/
export async function getNewsDetails(
title: string,
): Promise<NewsArticle | null> {
try {
// First check cache
if (newsCache.length > 0) {
const article = newsCache.find(
(a) => a.title.toLowerCase() === title.toLowerCase(),
);
if (article) {
return {
title: article.title,
source: article.source.name,
publishedAt: article.publishedAt,
description:
article.description || "No description available",
url: article.url,
author: article.author || "Unknown",
};
}
}
// If not in cache, search for it
console.error(`Searching for article: ${title}`);
const response = await axios.get(`${NEWS_API_BASE_URL}/everything`, {
params: {
q: title,
pageSize: 1,
language: "en",
sortBy: "relevancy",
apiKey: NEWS_API_KEY,
},
});
if (
response.data.status !== "ok" ||
response.data.articles.length === 0
) {
return null;
}
const article = response.data.articles[0];
return {
title: article.title,
source: article.source.name,
publishedAt: article.publishedAt,
description: article.description || "No description available",
url: article.url,
author: article.author || "Unknown",
};
} catch (error) {
if (axios.isAxiosError(error)) {
throw new Error(`Failed to fetch news details: ${error.message}`);
}
throw error;
}
}
