latest

2022-02-09-ambientweather/aw.mjs

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+#!/usr/bin/env zx
+
+const api = "https://lightning.ambientweather.net/devices";
+const outputDir = `${process.env.HOME}/tmp/weatherfetch`;
+const queryString =
+    "%24publicBox%5B0%5D%5B0%5D=-115.37389456264378&%24publicBox%5B0%5D%5B1%5D=36.1098453902911&%24publicBox%5B1%5D%5B0%5D=-115.1709572152316&%24publicBox%5B1%5D%5B1%5D=36.24422733946878&%24limit=500";
+const userAgent =
+    "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/98.0.4758.80 Safari/537.36";
+
+async function fetchWeather() {
+    const cw = await $`curl ${api}?${queryString} \
+        -H 'accept: application/json' \
+        -H 'authority: lightning.ambientweather.net' \
+        -H 'user-agent: '${userAgent} \
+        -H 'origin: https://ambientweather.net' \
+        -H 'sec-fetch-site: same-site' \
+        -H 'sec-fetch-mode: cors' \
+        -H 'sec-fetch-dest: empty' \
+        -H 'referer: https://ambientweather.net/' \
+        -H 'accept-language: en-US,en;q=0.9' \
+        --compressed 2>/dev/null`;
+    const o = await JSON.parse(cw);
+    return o;
+}
+
+function minToMs(minutes) {
+    return minutes * 60 * 1000;
+}
+
+async function main() {
+    await $`test -d ${outputDir} || mkdir -p ${outputDir}`;
+    while (true) {
+        await oneLoop();
+        await sleep(minToMs(30));
+    }
+}
+
+async function oneLoop() {
+    const now = await $`date -u +"%Y%m%dT%H%M%SZ"`;
+    const data = await fetchWeather();
+
+    fs.writeFileSync(outputDir + "/latest.json", JSON.stringify(data));
+    await $`cp ${outputDir}/latest.json ${outputDir}/${now}.json`;
+}
+
+main();