64e8e85aac
Prefer using explicit casts by calling `Number`, `Boolean`, or `String` over using operators like `+`, `!!` or `"" +`. This is considered best practice as it improves readability.
61 lines
2.1 KiB
TypeScript
61 lines
2.1 KiB
TypeScript
import { useQuery } from '@tanstack/react-query';
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import { WeatherResponse } from './types';
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/**
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* Requests the weather of the specified city
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* @param cityName name of the city where the weather should be requested
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* @returns weather of specified city
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*/
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export const useWeatherForCity = (cityName: string) => {
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const {
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data: city,
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isLoading,
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isError,
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} = useQuery({
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queryKey: ['weatherCity', { cityName }],
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queryFn: () => fetchCity(cityName),
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cacheTime: 1000 * 60 * 60 * 24, // the city is cached for 24 hours
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staleTime: Infinity, // the city is never considered stale
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});
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const weatherQuery = useQuery({
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queryKey: ['weather', { cityName }],
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queryFn: () => fetchWeather(city?.results[0]),
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enabled: Boolean(city),
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cacheTime: 1000 * 60 * 60 * 6, // the weather is cached for 6 hours
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staleTime: 1000 * 60 * 5, // the weather is considered stale after 5 minutes
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});
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return {
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...weatherQuery,
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isLoading: weatherQuery.isLoading || isLoading,
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isError: weatherQuery.isError || isError,
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};
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};
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/**
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* Requests the coordinates of a city
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* @param cityName name of city
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* @returns list with all coordinates for citites with specified name
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*/
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const fetchCity = async (cityName: string) => {
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const res = await fetch(`https://geocoding-api.open-meteo.com/v1/search?name=${cityName}`);
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return (await res.json()) as { results: Coordinates[] };
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};
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/**
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* Requests the weather of specific coordinates
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* @param coordinates of the location the weather should be fetched
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* @returns weather of specified coordinates
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*/
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async function fetchWeather(coordinates?: Coordinates) {
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if (!coordinates) return null;
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const { longitude, latitude } = coordinates;
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const res = await fetch(
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`https://api.open-meteo.com/v1/forecast?latitude=${latitude}&longitude=${longitude}&daily=weathercode,temperature_2m_max,temperature_2m_min¤t_weather=true&timezone=Europe%2FLondon`
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);
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// eslint-disable-next-line consistent-return
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return (await res.json()) as WeatherResponse;
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}
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type Coordinates = { latitude: number; longitude: number };
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