Added weather fetching API

server/fetcher.js

@@ -0,0 +1,35 @@
+import dotenv from "dotenv";
+dotenv.config();
+
+export class WeatherFetcher {
+
+    consturctor() {
+        this._apiKey = process.env.API_KEY;
+    };
+
+    // fetch lang+long co-ords for API
+    async _fetchCoords(city) {
+        const url = `http://api.openweathermap.org/geo/1.0/direct?q=${city}&limit=3&appid=${process.env.API_KEY}`; // specifying this._apiKey doesn't work???
+
+        const result = await fetch(url);
+        return await result.json();
+    };
+
+    // fetch list of potential cities
+    async fetchCities(string) {
+        const coords = await this._fetchCoords(string);
+        return coords.map((city) => { return {
+            name: city.name,
+            countryCode: city.country,
+            lat: city.lat,
+            lon: city.lon
+        };});
+    };
+
+    async fetchWeather(lat, lon) {
+        const url = `https://api.openweathermap.org/data/2.5/weather?lat=${lat}&lon=${lon}&appid=${process.env.API_KEY}`;
+
+        const result = await fetch(url);
+        return await result.json();
+    };
+};

tests/jest/fetcher.test.js

@@ -0,0 +1,32 @@
+import { WeatherFetcher } from "../../server/fetcher.js";
+
+describe("weather fetching", () => {
+
+    it("fetches city co-ords", async () => {
+        const fetcher = new WeatherFetcher();
+        const coords = await fetcher._fetchCoords("london");
+
+        expect(coords[0].name).toBe("London");  
+    });
+
+    it("fetches list of cities", async () => {
+        const fetcher = new WeatherFetcher();
+        const list = await fetcher.fetchCities("london");
+
+        expect(list[0].name).toBe("London");
+        expect(list[1].name).toBe("City of London");
+        expect(list[2].countryCode).toBe("CA");
+    });
+
+    it("fetches the weather data for a city", async () => {
+        const fetcher = new WeatherFetcher();
+        const coords = await fetcher._fetchCoords("london");
+
+        const lat = coords[0].lat;
+        const lon = coords[0].lon;
+
+        const weather = await fetcher.fetchWeather(lat, lon);
+
+        expect(weather.name).toBe("London");
+    });
+});

tests/playwright/dummy.test.js

@@ -1,6 +1,6 @@
 import { test, expect } from "@playwright/test";
 
 test("loads", async ({ page }) => {
-    await page.goto("./")
-    await expect(page).toHaveTitle("SkyCast")
-})
+    await page.goto("./");
+    await expect(page).toHaveTitle("SkyCast");
+});