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Better retrieval mechanism; also caching for promise

master
Martin Zwigl 2025-03-08 01:50:10 +01:00
parent 3d6c78afac
commit b2e6077e8b
2 changed files with 16 additions and 34 deletions
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48
apps/coin_info/clkinfo.js
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@ -1,11 +1,10 @@
(function() {
const COIN_ICON = atob("MDCBAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAD/AAAAAA//8AAAAB///AAAAB8A/gAAAAgAH4AAAwAAB8AAB4AAA+AADwA4APAADgA4APAAHgA4AHgADAf/ADwAAAf/gBwAAAf/wB4AAAcB4A4AAAcA4A4AAAcA4A4AYAcA4AcA8AcB4AcB+Af/wDdj/Af/4D/n/Af/8D/n/AcAcB/A4AcAOA+A4AcAOAcAcAcAOAAAcAcAAAAAcAcAAAAAeAf/AAAAOAf/AAAAPAf/ADAAHgA4AHgADwA4AHAADwA4APAAB8AAA+AAA+AAB8AAAfgAH4AAAH8A/gAAAD///AAAAA//8AAAAAD/AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=="); // (full base64 string here)
const COIN_ICON = atob("MDCBAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAD/AAAAAA//8AAAAB///AAAAB8A/gAAAAgAH4AAAwAAB8AAB4AAA+AADwA4APAADgA4APAAHgA4AHgADAf/ADwAAAf/gBwAAAf/wB4AAAcB4A4AAAcA4A4AAAcA4A4AYAcA4AcA8AcB4AcB+Af/wDdj/Af/4D/n/Af/8D/n/AcAcB/A4AcAOA+A4AcAOAcAcAcAOAAAcAcAAAAAcAcAAAAAeAf/AAAAOAf/AAAAPAf/ADAAHgA4AHgADwA4AHAADwA4APAAB8AAA+AAA+AAB8AAAfgAH4AAAH8A/gAAAD///AAAAA//8AAAAAD/AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==");
const settings = require("Storage").readJSON("coin_info.settings.json", 1) || {};
const db = require("Storage").readJSON("coin_info.cmc_key.json", 1) || {};
const logFile = require("Storage").open("log.txt", "a");
// Ensure tokenSelected is an array
if (!(settings.tokenSelected instanceof Array)) settings.tokenSelected = [];
// Cache for storing results
@ -17,12 +16,10 @@
return {
name: token,
get: function() {
// Return cached data if available
// Immediate return from cache or placeholder
if (cache[token]) {
return cache[token];
}
// Return placeholder while fetching data
return {
text: "Load...",
img: COIN_ICON
@ -32,42 +29,23 @@
var self = this;
// Fetch data when shown
const url = `https://api.binance.com/api/v3/ticker/24hr?symbol=${token.toUpperCase()}`;
Bangle.http(url, { method: 'GET' })
.then(cmcResult => {
logFile.write("HTTP resp:" + JSON.stringify(cmcResult));
const apiData = JSON.parse(cmcResult.resp);
logFile.write("data:" + JSON.stringify(apiData));
const url = `https://api.binance.com/api/v3/ticker/24hr?symbol=${token.toUpperCase()}USDT`;
// Update cache with fetched data
cache[token] = {
// text: `${apiData.symbol}\n${apiData.lastPrice} USD`,
text: `${apiData.symbol}`,
img: COIN_ICON
};
// Trigger a redraw of this item
self.emit("redraw");
})
.catch(err => {
logFile.write("API Error: " + JSON.stringify(err));
cache[token] = {
text: "Error",
img: COIN_ICON
};
self.emit("redraw");
});
// Set interval to refresh data every hour
self.interval = setInterval(() => {
(function fetchData() {
Bangle.http(url, { method: 'GET' })
.then(cmcResult => {
logFile.write("HTTP resp:" + JSON.stringify(cmcResult));
const apiData = JSON.parse(cmcResult.resp);
logFile.write("data:" + JSON.stringify(apiData));
// Update cache with fetched data
cache[token] = {
// text: `${apiData.symbol}\n${apiData.lastPrice} USD`,
text: `${apiData.symbol}`,
img: COIN_ICON
};
// Trigger a redraw of this item
self.emit("redraw");
})
.catch(err => {
@ -78,6 +56,11 @@
};
self.emit("redraw");
});
})();
// Set interval to refresh data every hour
self.interval = setInterval(() => {
fetchData(); // Call the fetch function again
}, 3600000); // Refresh every hour
},
hide: function() {
@ -90,4 +73,3 @@
})
};
})();

2
apps/coin_info/metadata.json
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@ -1,7 +1,7 @@
{ "id": "coin_info",
"name": "Crypto-Coins Info",
"shortName":"Coins Info",
"version": "0.04.25",
"version": "0.04.26",
"description": "Crypto-Coins Infos with the help of the Coinmarketcap API",
"icon": "app.png",
"tags": "clkinfo",