fetching exchange rates from db than api calls
This commit is contained in:
Abhishek Sinha
parent
2f9126942b
commit
17fbd1f80c
@ -11387,6 +11387,10 @@
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.determineClosestSupernode(localbitcoinplusplus.wallets.my_local_flo_address);
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if (typeof my_closest_su=="object") {
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request.globalParams.primarySupernode = my_closest_su[0].data.id;
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request.globalParams["receiversList"] = [];
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for (let j = 0; j <= localbitcoinplusplus.master_configurations.MaxBackups; j++) {
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request.globalParams.receiversList.push(my_closest_su[j].data.id);
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}
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}
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}
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} else {
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@ -14356,7 +14360,43 @@
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})
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});
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},
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fiat_to_crypto_exchange_rate(crypto_code="", fiat="") {
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// This function should be run periodically maybe through cron job
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update_fiat_to_crypto_exchange_rate(crypto_code="", fiat="") {
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this.fiat_to_crypto_exchange_rate_from_API(crypto_code, fiat)
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.then(new_price=>{
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console.log(new_price);
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if (typeof new_price=="number") {
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let rate_obj = {
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id: `${crypto_code}_${fiat}`,
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crypto_code: crypto_code,
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currency_code: fiat,
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rate: new_price,
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timestamp: +new Date()
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};
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const rate_obj_str = JSON.stringify(rate_obj);
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const rate_obj_hash = Crypto.SHA256(rate_obj_str);
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const RM_WALLET = new localbitcoinplusplus.wallets;
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const rate_obj_sign = RM_WALLET.sign(rate_obj_hash, localbitcoinplusplus.wallets.MY_SUPERNODE_PRIVATE_KEY);
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rate_obj['supernode_pub_key'] = localbitcoinplusplus.wallets.my_local_flo_public_key;
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rate_obj['sign'] = rate_obj_sign;
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updateinDB('crypto_fiat_rates', rate_obj)
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.then(()=>{
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showMessage(`INFO: ${crypto_code}<=>${fiat} rate updated.`);
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this.resolve_current_crypto_price_in_fiat(crypto_code, fiat);
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})
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.catch(()=>console.error(`ERROR: Failed to update ${crypto_code}<=>${fiat} rate.`));
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return true;
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} else {
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console.error(`ERROR: Failed to get valid response while fetching ${crypto_code}<=>${fiat} rate.`);
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}
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}).catch(e=>{
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console.error(e);
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});
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},
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fiat_to_crypto_exchange_rate_from_API(crypto_code="", fiat="") {
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return new Promise((resolve, reject)=>{
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if (crypto_code=="BTC") {
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@ -14403,55 +14443,56 @@
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}
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});
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},
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fiat_to_crypto_exchange_rate(crypto_code="", fiat="") {
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return new Promise((resolve, reject)=>{
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try {
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let id = `${crypto_code}_${fiat}`;
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readDB('crypto_fiat_rates', id)
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.then(res=>{
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if (typeof res=="object") {
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return resolve(res);
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}
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reject(false);
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});
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} catch(e) {
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reject(e);
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}
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});
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},
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async set_current_crypto_price_in_fiat(crypto_code, currency_code) {
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if (!localbitcoinplusplus.master_configurations.tradableAsset1.includes(crypto_code)
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|| !localbitcoinplusplus.master_configurations.tradableAsset2.includes(currency_code)
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|| !localbitcoinplusplus.master_configurations.supernodesPubKeys
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.includes(localbitcoinplusplus.wallets.my_local_flo_public_key)) return false;
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let new_price = 0;
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let rate_obj = null;
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if (crypto_code=="BTC" && currency_code=="USD") {
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new_price = await this.fiat_to_crypto_exchange_rate(crypto_code, currency_code);
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rate_obj = await this.fiat_to_crypto_exchange_rate(crypto_code, currency_code);
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}
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if (crypto_code=="BTC_TEST" && currency_code=="USD") {
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new_price = await this.fiat_to_crypto_exchange_rate("BTC", currency_code);
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rate_obj = await this.fiat_to_crypto_exchange_rate("BTC", currency_code);
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}
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if (crypto_code=="BTC" && currency_code=="INR") {
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new_price = await this.fiat_to_crypto_exchange_rate(crypto_code, currency_code);
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rate_obj = await this.fiat_to_crypto_exchange_rate(crypto_code, currency_code);
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}
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if (crypto_code=="BTC_TEST" && currency_code=="INR") {
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new_price = await this.fiat_to_crypto_exchange_rate("BTC", currency_code);
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rate_obj = await this.fiat_to_crypto_exchange_rate("BTC", currency_code);
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}
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if (crypto_code=="FLO" && currency_code=="USD") {
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new_price = await this.fiat_to_crypto_exchange_rate(crypto_code, currency_code);
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rate_obj = await this.fiat_to_crypto_exchange_rate(crypto_code, currency_code);
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}
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if (crypto_code=="FLO_TEST" && currency_code=="USD") {
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new_price = await this.fiat_to_crypto_exchange_rate("FLO", currency_code);
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rate_obj = await this.fiat_to_crypto_exchange_rate("FLO", currency_code);
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}
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if (crypto_code=="FLO" && currency_code=="INR") {
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new_price = await this.fiat_to_crypto_exchange_rate(crypto_code, currency_code);
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rate_obj = await this.fiat_to_crypto_exchange_rate(crypto_code, currency_code);
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}
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if (crypto_code=="FLO_TEST" && currency_code=="INR") {
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new_price = await this.fiat_to_crypto_exchange_rate("FLO", currency_code);
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rate_obj = await this.fiat_to_crypto_exchange_rate("FLO", currency_code);
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}
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if(typeof new_price !== "number" || new_price<=0) throw new Error(`WARNING: Failed to get price.`);
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let rate_obj = {
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id: `${crypto_code}_${currency_code}`,
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crypto_code: crypto_code,
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currency_code: currency_code,
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rate: new_price,
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timestamp: +new Date()
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};
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const rate_obj_str = JSON.stringify(rate_obj);
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const rate_obj_hash = Crypto.SHA256(rate_obj_str);
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const RM_WALLET = new localbitcoinplusplus.wallets;
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const rate_obj_sign = RM_WALLET.sign(rate_obj_hash, localbitcoinplusplus.wallets.MY_SUPERNODE_PRIVATE_KEY);
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rate_obj['supernode_pub_key'] = localbitcoinplusplus.wallets.my_local_flo_public_key;
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rate_obj['sign'] = rate_obj_sign;
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console.log(rate_obj);
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if(rate_obj == null) throw new Error(`WARNING: Failed to get price.`);
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Object.defineProperty(localbitcoinplusplus.trade,
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`current_${crypto_code}_price_in_${currency_code}`, {
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@ -15723,6 +15764,12 @@
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function onOpen(evt) {
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reactor.dispatchEvent('new_supernode_connected', evt);
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readDB('localbitcoinUser', '00-01').then(res=>{
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if (typeof res=="object" && res.myLocalFLOAddress=="string") {
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localbitcoinplusplus.wallets.my_local_flo_address = res.myLocalFLOAddress;
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localbitcoinplusplus.wallets.my_local_flo_public_key = res.myLocalFLOPublicKey;
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}
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})
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readAllDB('myClosestSupernodes').then(sconn=>{
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const switchMyWS = new backupSupernodesWebSocketObject();
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sconn.map((m,i)=>{
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@ -19825,6 +19872,16 @@
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temporary_ip: null
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}
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const crypto_fiat_rates = {
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id: null,
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crypto_code: null,
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currency_code: null,
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rate: 0,
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supernode_pub_key: null,
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sign: null,
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timestamp: +new Date()
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}
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var db;
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const DBName = "localbitcoinDB";
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const request = window.indexedDB.open(DBName, 1);
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@ -20000,6 +20057,17 @@
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unique: false
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});
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}
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if (!db.objectStoreNames.contains('crypto_fiat_rates')) {
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var objectStore = db.createObjectStore("crypto_fiat_rates", {
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keyPath: 'id'
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});
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objectStore.createIndex('currency_code', 'currency_code', {
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unique: false
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});
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objectStore.createIndex('crypto_code', 'crypto_code', {
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unique: false
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});
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}
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}
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function readDB(tablename, id) {
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@ -20354,6 +20422,17 @@
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unique: false
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});
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}
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if (!db.objectStoreNames.contains('crypto_fiat_rates')) {
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var objectStore = db.createObjectStore("crypto_fiat_rates", {
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keyPath: 'id'
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});
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objectStore.createIndex('currency_code', 'currency_code', {
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unique: false
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});
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objectStore.createIndex('crypto_code', 'crypto_code', {
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unique: false
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});
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}
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}.bind(this)
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@ -20758,7 +20837,6 @@
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}
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});
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// Check last connected supernode, if not primary then
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// update the user data from other su first
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//wsUri = await localbitcoinplusplus.kademlia.getSupernodeSeed(idbData.myLocalFLOAddress);
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@ -20803,8 +20881,9 @@
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localbitcoinplusplus.master_configurations.tradableAsset1.forEach(function (
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asset1) {
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localbitcoinplusplus.master_configurations.tradableAsset2.forEach(
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function (asset2) {
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RM_TRADE.resolve_current_crypto_price_in_fiat(asset1, asset2);
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async function (asset2) {
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await RM_TRADE.update_fiat_to_crypto_exchange_rate(asset1, asset2);
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await RM_TRADE.resolve_current_crypto_price_in_fiat(asset1, asset2);
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});
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});
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}
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