53 lines
1.5 KiB
JavaScript
53 lines
1.5 KiB
JavaScript
// list all stations in a single file
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// only find stations with 4 letter codes
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const fs = require('fs');
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const path = require('path');
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const https = require('./https');
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// immediately invoked function so we can access async/await
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const start = async () => {
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// load the list of states
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const states = ['AK', 'NC', 'VA', 'TX', 'GA', 'PR'];
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// const states = require('./stations-states.js');
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const output = {};
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// loop through states
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await Promise.all(states.map(async (state) => {
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try {
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// get list and parse the JSON
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const stationsRaw = await https(`https://api.weather.gov/stations?state=${state}`);
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const stationsAll = JSON.parse(stationsRaw).features;
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// filter stations for 4 letter identifiers
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const stations = stationsAll.filter((station) => station.properties.stationIdentifier.match(/^[A-Z]{4}$/));
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// add each resulting station to the output
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stations.forEach((station) => {
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const id = station.properties.stationIdentifier;
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if (output[id]) {
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console.log(`Duplicate station: ${state}-${id}`);
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return;
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}
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output[id] = {
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id,
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city: station.properties.name,
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state,
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lat: station.geometry.coordinates[1],
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lon: station.geometry.coordinates[0],
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};
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});
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console.log(`Complete: ${state}`);
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} catch (e) {
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console.error(`Unable to get state: ${state}`);
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return false;
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}
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}));
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// write the output
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fs.writeFileSync(path.join(__dirname, 'output/stations.js'), JSON.stringify(output, null, 2));
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};
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// immediately invoked function allows access to async
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(async () => {
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await start();
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})();
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