Fetch information from API call

I am trying to fetch the temperature etc from the Open Weather API but cannot seem to get it to be able to display information about the actual weather. Using the person’s location to give me the weather at that point and use this to send notifications to the user.

Here is my code below:

import React, {useEffect, useState} from 'react'
import {Text, View, StylesSheet} from 'react-native'


export default function Weather () {
  const [ weather, setWeather] = useState({});
  const API_KEY = './lib/APIKey.js';
  const URL = `https://api.openweathermap.org/data/2.5/weather?lat=${this.coords.latitude}&lon=${this.coords.longitude}&units=metric&APPID=${API_KEY}`;

  async function getWeather() {
    const data = await fetch(URL).then(res => res.json());
    setWeather(data);
  }

  useEffect(() => {
    getWeather();
  })
  }

I’m trying to get the info and use it on another page. I do not need to display the information just need it for the back end and allow me to use the data to send triggered notifications.

Any help would be much appreciated.