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Update to memoize the sensor reading to prevent overflowing the sensor with requests

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This commit is contained in:
William Moore 2022-05-26 20:24:35 -05:00
parent 25e5a63d46
commit ea87ab6478
1 changed files with 4 additions and 3 deletions
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7
index.js
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@ -35,9 +35,7 @@ const router = new Router();
router.get('/', async ctx => { router.get('/', async ctx => {
try { try {
const sensor = await fetch(SENSOR_URL); ctx.body = `{"temperature": ${currentSensorReading}}`;
const reading = await sensor.json();
ctx.body = reading;
} catch (e) { } catch (e) {
ctx.body = 'There was an error retrieving the sensor data.'; ctx.body = 'There was an error retrieving the sensor data.';
ctx.status = 500; ctx.status = 500;
@ -50,10 +48,13 @@ app
app.listen(PORT); app.listen(PORT);
let currentSensorReading=0.0
async function temperatoTick() { async function temperatoTick() {
try { try {
const sensor = await fetch(SENSOR_URL); const sensor = await fetch(SENSOR_URL);
const reading = await sensor.json(); const reading = await sensor.json();
currentSensorReading = reading.temperature;
if (reading.temperature >= SET_POINT) { if (reading.temperature >= SET_POINT) {
const basicAuth = Buffer.from(`${USERNAME}:${PASSWORD}`).toString('base64'); const basicAuth = Buffer.from(`${USERNAME}:${PASSWORD}`).toString('base64');
await fetch(NOTIF_URL, { await fetch(NOTIF_URL, {