pre-load wfo point info for regional and travel cities

datagenerators/travelcities.js

@@ -0,0 +1,41 @@
+// look up points for each travel city
+const fs = require('fs/promises');
+const chunk = require('./chunk');
+const https = require('./https');
+
+(async () => {
+	// source data
+	const travelCities = JSON.parse(await fs.readFile('./datagenerators/travelcities-raw.json'));
+
+	const result = [];
+	const dataChunks = chunk(travelCities, 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/${city.Latitude},${city.Longitude}`);
+				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/travelcities.json', JSON.stringify(result, null, '	'));
+})();