Files
wtr/app/api/forecast/route.ts

39 lines
1.6 KiB
TypeScript

import { NextResponse } from "next/server";
const FORECAST_URL = "https://api.open-meteo.com/v1/forecast";
function parseCoordinate(value: string | null, min: number, max: number) {
if (!value?.trim()) return null;
const coordinate = Number(value);
return Number.isFinite(coordinate) && coordinate >= min && coordinate <= max ? coordinate : null;
}
export async function GET(request: Request) {
const { searchParams } = new URL(request.url);
const latitude = parseCoordinate(searchParams.get("latitude"), -90, 90);
const longitude = parseCoordinate(searchParams.get("longitude"), -180, 180);
if (latitude === null || longitude === null) {
return NextResponse.json({ error: "Invalid coordinates." }, { status: 400 });
}
const params = new URLSearchParams({
latitude: String(latitude),
longitude: String(longitude),
hourly: "temperature_2m,apparent_temperature,precipitation_probability,precipitation,weather_code,wind_speed_10m",
daily: "weather_code,temperature_2m_max,temperature_2m_min,precipitation_probability_max,precipitation_sum,sunrise,sunset",
timezone: "Europe/Warsaw",
forecast_days: "7",
wind_speed_unit: "ms",
});
try {
const response = await fetch(`${FORECAST_URL}?${params}`, { next: { revalidate: 900 } });
if (!response.ok) return NextResponse.json({ error: "Forecast service is unavailable." }, { status: 502 });
return NextResponse.json(await response.json(), {
headers: { "Cache-Control": "public, s-maxage=900, stale-while-revalidate=1800" },
});
} catch {
return NextResponse.json({ error: "Forecast service is unavailable." }, { status: 502 });
}
}