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FunctionProject/api/assets/functions/main/weatherRequest.js

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const axios = require('axios');
const Queue = require('smart-request-balancer');
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const errorHandling = require('../../utils/errorHandling');
const { requiredFields } = require('../../config/errors');
const { WEATHER_API_KEY } = require('../../config/config');
const queue = new Queue({
/*
rate: number of requests
per
limit: number of seconds
*/
rules: {
weatherRequest: {
rate: 50,
limit: 60,
priority: 1
},
}
});
/* OUTPUTS */
exports.weatherRequestOutput = async ({ res, next }, argsObject) => {
let { cityName } = argsObject;
// S'il n'y a pas les champs obligatoire
if (!(cityName)) {
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return errorHandling(next, requiredFields);
}
// Récupère les données météo grâce à l'API : openweathermap.org. (→ avec limite de 50 requêtes par minute)
queue.request(() => {
axios.get(`https://api.openweathermap.org/data/2.5/weather?q=${cityName}&lang=fr&units=metric&appid=${WEATHER_API_KEY}`)
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.then((response) => res.status(200).json(response.data))
.catch(() => errorHandling(next, { message: "La ville n'existe pas (dans l'API de openweathermap.org).", statusCode: 404 }));
}, 'everyone', 'weatherRequest');
}