import {
AlertsResponse,
PointsResponse,
ForecastResponse,
} from "../../domain/models/Weather.js";
export class NWSApiService {
private readonly API_BASE = "https://api.weather.gov";
private readonly USER_AGENT = "weather-app/1.0";
// Helper function for making NWS API requests
async makeRequest<T>(endpoint: string): Promise<T | null> {
const url = `${this.API_BASE}${endpoint}`;
const headers = {
"User-Agent": this.USER_AGENT,
Accept: "application/geo+json",
};
try {
const response = await fetch(url, { headers });
if (!response.ok) {
throw new Error(`HTTP error! status: ${response.status}`);
}
return (await response.json()) as T;
} catch (error) {
console.error("Error making NWS request:", error);
return null;
}
}
async getAlerts(stateCode: string): Promise<AlertsResponse | null> {
return this.makeRequest<AlertsResponse>(`/alerts?area=${stateCode}`);
}
async getPoints(
latitude: number,
longitude: number
): Promise<PointsResponse | null> {
return this.makeRequest<PointsResponse>(
`/points/${latitude.toFixed(4)},${longitude.toFixed(4)}`
);
}
async getForecast(forecastUrl: string): Promise<ForecastResponse | null> {
// This endpoint requires the full URL, not just the path
const headers = {
"User-Agent": this.USER_AGENT,
Accept: "application/geo+json",
};
try {
const response = await fetch(forecastUrl, { headers });
if (!response.ok) {
throw new Error(`HTTP error! status: ${response.status}`);
}
return (await response.json()) as ForecastResponse;
} catch (error) {
console.error("Error making NWS request:", error);
return null;
}
}
}
