ws4kp/datagenerators/travelcities.js

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// 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, ' '));
})();