refresh data sources close #73

datagenerators/regionalcities.mjs

@@ -0,0 +1,40 @@
+// look up points for each regional city
+import fs from 'fs/promises';
+
+import chunk from './chunk.mjs';
+import https from './https.mjs';
+
+// source data
+const regionalCities = JSON.parse(await fs.readFile('./datagenerators/regionalcities-raw.json'));
+
+const result = [];
+const dataChunks = chunk(regionalCities, 5);
+
+// for loop intentional for use of await
+// this keeps the api from getting overwhelmed
+for (let i = 0; i < dataChunks.length; i += 1) {
+	const cityChunk = dataChunks[i];
+
+	// eslint-disable-next-line no-await-in-loop
+	const chunkResult = await Promise.all(cityChunk.map(async (city) => {
+		try {
+			const data = await https(`https://api.weather.gov/points/${city.lat},${city.lon}`);
+			const point = JSON.parse(data);
+			return {
+				...city,
+				point: {
+					x: point.properties.gridX,
+					y: point.properties.gridY,
+					wfo: point.properties.gridId,
+				},
+			};
+		} catch (e) {
+			console.error(e);
+			return city;
+		}
+	}));
+
+	result.push(...chunkResult);
+}
+
+await fs.writeFile('./datagenerators/output/regionalcities.json', JSON.stringify(result, null, '	'));