Better retrieval mechanism; also caching for promise
Martin Zwigl
parent
0cfd65b919
commit
3d6c78afac
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@ -7,4 +7,4 @@ Crypto-Coins Infos with the help of the Coinmarketcap API
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Martin Zwigl
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## Reminder for last working
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- ef6c04b1cca90125d3e41381be4a70231c076412
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- 0cfd65b919157356d46ccbbeb2416d794312e13a
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@ -1,67 +1,93 @@
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(function() {
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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)
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const settings = require("Storage").readJSON("coin_info.settings.json",1)||{};
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const db = require("Storage").readJSON("coin_info.cmc_key.json",1)||{};
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const settings = require("Storage").readJSON("coin_info.settings.json", 1) || {};
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const db = require("Storage").readJSON("coin_info.cmc_key.json", 1) || {};
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const logFile = require("Storage").open("log.txt", "a");
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if (!(settings.tokenSelected instanceof Array))
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settings.tokenSelected = [];
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// Ensure tokenSelected is an array
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if (!(settings.tokenSelected instanceof Array)) settings.tokenSelected = [];
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// Cache for storing results
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let cache = {};
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return {
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name: "CoinInfo",
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items: settings.tokenSelected.map(token => {
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return { name : token,
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get : function()
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{
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// const url = `https://pro-api.coinmarketcap.com/v2/cryptocurrency/quotes/latest?slug=${token}`;
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// const url = `https://pro-api.coinmarketcap.com/v2/cryptocurrency/quotes/latest?slug=bitcoin`;
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const url = `https://api.binance.com/api/v3/ticker/24hr?symbol=BTCUSDT`;
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return Bangle
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.http(url, {
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method: 'GET'
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// ,headers: {
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// 'CMC_PRO_API_KEY': db.apikey
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// }
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})
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return {
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name: token,
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get: function() {
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// Return cached data if available
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if (cache[token]) {
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return cache[token];
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}
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// Return placeholder while fetching data
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return {
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text: "Load...",
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img: COIN_ICON
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};
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},
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show: function() {
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var self = this;
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// Fetch data when shown
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const url = `https://api.binance.com/api/v3/ticker/24hr?symbol=${token.toUpperCase()}`;
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Bangle.http(url, { method: 'GET' })
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.then(cmcResult => {
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// text: JSON.parse(cmcResult.resp).data["1"].symbol, // Fixed data path
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logFile.write("HTTP resp:" + JSON.stringify(cmcResult));
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const apiData = JSON.parse(cmcResult.resp); // Correctly declare variable
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const apiData = JSON.parse(cmcResult.resp);
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logFile.write("data:" + JSON.stringify(apiData));
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return {
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text: apiData.symbol,
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// Update cache with fetched data
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cache[token] = {
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// text: `${apiData.symbol}\n${apiData.lastPrice} USD`,
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text: `${apiData.symbol}`,
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img: COIN_ICON
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};
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// Trigger a redraw of this item
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self.emit("redraw");
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})
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.catch(err => {
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logFile.write("API Error: " + JSON.stringify(err));
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return {
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text: err.toString(),
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cache[token] = {
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text: "Error",
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img: COIN_ICON
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}
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});
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},
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show : function() {
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var self = this;
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// Set timeout to align to the next minute
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self.interval = setTimeout(function timerTimeout() {
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self.emit("redraw");
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// Continue updating every hour
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self.interval = setInterval(function intervalCallback() {
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};
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self.emit("redraw");
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}, 3600000);
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}, 3600000 - (Date.now() % 3600000));
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});
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// Set interval to refresh data every hour
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self.interval = setInterval(() => {
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Bangle.http(url, { method: 'GET' })
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.then(cmcResult => {
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const apiData = JSON.parse(cmcResult.resp);
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cache[token] = {
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// text: `${apiData.symbol}\n${apiData.lastPrice} USD`,
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text: `${apiData.symbol}`,
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img: COIN_ICON
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};
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self.emit("redraw");
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})
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.catch(err => {
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logFile.write("API Error: " + JSON.stringify(err));
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cache[token] = {
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text: "Error",
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img: COIN_ICON
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};
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self.emit("redraw");
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});
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}, 3600000); // Refresh every hour
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},
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hide : function() {
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hide: function() {
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if (this.interval) {
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clearInterval(this.interval);
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this.interval = null;
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}
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}
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// ,run: function () {
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// this.emit("redraw");
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// }
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}
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};
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})
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};
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})
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})();
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@ -1,7 +1,7 @@
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{ "id": "coin_info",
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"name": "Crypto-Coins Info",
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"shortName":"Coins Info",
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"version": "0.04.24",
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"version": "0.04.25",
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"description": "Crypto-Coins Infos with the help of the Coinmarketcap API",
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"icon": "app.png",
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"tags": "clkinfo",
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