Add support for Dexomy exchange

2025-03-02 19:49:32 -07:00
parent c239f129cf
commit 76a4b5e218
4 changed files with 220 additions and 3 deletions
@@ -0,0 +1,194 @@
+const request = require('postman-request');
+const base_url = 'https://dexomy.com/api/v2/';
+const market_url_template = 'https://dexomy.com/exchange/dashboard?coin_pair={coin}_{base}';
+
+// initialize the rate limiter to wait 2 seconds between requests to prevent abusing external apis
+const rateLimitLib = require('../ratelimit');
+const rateLimit = new rateLimitLib.RateLimit(1, 2000, false);
+
+function get_summary(coin, exchange, api_error_msg, cb) {
+  const req_url = base_url + 'get-pair-list/';
+
+  // NOTE: no need to pause here because this is the first api call
+  request({uri: req_url, json: true}, function (error, response, body) {
+    if (error)
+      return cb(error, null, null);
+    else if (body == null || body == '' || typeof body !== 'object')
+      return cb(api_error_msg, null, null);
+    else if (!body.success)
+      return cb((body.message != null ? body.message : api_error_msg), null, null);
+    else {
+      try {
+        // find the correct coin pair record
+        const pairObject = body.data.find(item => item.coin_pair_name === `${coin}/${exchange}`);
+
+        if (pairObject) {
+          const coindata = {
+            parent_coin_id: pairObject.parent_coin_id,
+            child_coin_id: pairObject.child_coin_id
+          };
+
+          const summary = {
+            'high': parseFloat(pairObject.high) || 0,
+            'low': parseFloat(pairObject.low) || 0,
+            'volume': parseFloat(pairObject.volume) || 0,
+            'last': parseFloat(pairObject.last_price) || 0,
+            'change': parseFloat(pairObject.price_change) || 0
+          };
+
+          return cb(null, summary, coindata);
+        } else
+          return cb(api_error_msg, null, null);
+      } catch(err) {
+        return cb(api_error_msg, null, null);
+      }
+    }
+  });
+}
+
+function get_trades(parent_coin_id, child_coin_id, api_error_msg, cb) {
+  const req_url = `${base_url}get-exchange-market-trades?base_coin_id=${parent_coin_id}&trade_coin_id=${child_coin_id}`;
+
+  // pause for 2 seconds before continuing
+  rateLimit.schedule(function() {
+    request({uri: req_url, json: true}, function (error, response, body) {
+      if (error)
+        return cb(error, null);
+      else if (body == null || body == '' || typeof body !== 'object')
+        return cb(api_error_msg, null);
+      else if (!body.success)
+        return cb((body.message != null ? body.message : api_error_msg), null);
+      else {
+        try {
+          let trades = [];
+
+          for (let t = 0; t < body.data.transactions.data.length; t++) {
+            // convert the string timestamp to iso time and then to a unix timestamp
+            const isoTime = body.data.transactions.data[t].time.replace(' ', 'T') + 'Z';
+            const unixTimestamp = Math.floor(new Date(isoTime).getTime() / 1000);
+
+            trades.push({
+              ordertype: body.data.transactions.data[t].price_order_type.toString().toUpperCase(),
+              price: parseFloat(body.data.transactions.data[t].price) || 0,
+              quantity: parseFloat(body.data.transactions.data[t].amount) || 0,
+              timestamp: unixTimestamp
+            });
+          }
+
+          return cb(null, trades);
+        } catch(err) {
+          return cb(api_error_msg, null);
+        }
+      }
+    });
+  });
+}
+
+function get_orders(parent_coin_id, child_coin_id, api_error_msg, cb) {
+  const req_url = `${base_url}get-exchange-all-orders?base_coin_id=${parent_coin_id}&trade_coin_id=${child_coin_id}`;
+
+  // pause for 2 seconds before continuing
+  rateLimit.schedule(function() {
+    request({uri: req_url, json: true}, function (error, response, body) {
+      if (error)
+        return cb(error, null, null);
+      else if (body == null || body == '' || typeof body !== 'object')
+        return cb(api_error_msg, null, null);
+      else if (!body.success)
+        return cb((body.message != null ? body.message : api_error_msg), null, null);
+      else {
+        try {
+          let buys = [];
+          let sells = [];
+
+          for (let b = 0; b < body.data.buy_orders.data.length; b++) {
+            buys.push({
+              price: parseFloat(body.data.buy_orders.data[b].price) || 0,
+              quantity: parseFloat(body.data.buy_orders.data[b].amount) || 0
+            });
+          }
+
+          for (let s = 0; s < body.data.sell_orders.data.length; s++) {
+            sells.push({
+              price: parseFloat(body.data.sell_orders.data[s].price) || 0,
+              quantity: parseFloat(body.data.sell_orders.data[s].amount) || 0
+            });
+          }
+
+          return cb(null, buys, sells);
+        } catch(err) {
+          return cb(api_error_msg, null, null);
+        }
+      }
+    });
+  });
+}
+
+function get_chartdata(parent_coin_id, child_coin_id, api_error_msg, cb) {
+  const end = Date.now();
+  const start = end - 86400000;
+  const req_url = `${base_url}get-exchange-chart-data?base_coin_id=${parent_coin_id}&trade_coin_id=${child_coin_id}&interval=15`;
+
+  // pause for 2 seconds before continuing
+  rateLimit.schedule(function() {
+    request({uri: req_url, json: true}, function(error, response, body) {
+      if (error)
+        return cb(error, null);
+      else if (body == null || body == '' || typeof body !== 'object' || typeof body == 'string' || body instanceof String)
+        return cb(api_error_msg, null);
+      else if (!body.success)
+        return cb((body.message != null ? body.message : api_error_msg), null);
+      else {
+        try {
+          let chartdata = [];
+
+          for (let c = 0; c < body.data.length; c++) {
+            // only take values more recent than the last 24 hours
+            if ((body.data[c].time * 1000) > start)
+              chartdata.push([
+                parseInt(body.data[c].time * 1000),
+                parseFloat(body.data[c].open) || 0,
+                parseFloat(body.data[c].high) || 0,
+                parseFloat(body.data[c].low) || 0,
+                parseFloat(body.data[c].close) || 0
+              ]);
+          }
+
+          return cb(null, chartdata);
+        } catch(err) {
+          return cb(api_error_msg, null);
+        }
+      }
+    });
+  });
+}
+
+module.exports = {
+  market_name: 'Dexomy',
+  market_logo: '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',
+  market_url_template: market_url_template,
+  market_url_case: 'u',
+  get_data: function(settings, cb) {
+    get_summary(settings.coin, settings.exchange, settings.api_error_msg, function(summary_error, stats, coindata) {
+      if (summary_error == null) {
+        get_orders(coindata.parent_coin_id, coindata.child_coin_id, settings.api_error_msg, function(order_error, buys, sells) {
+          if (order_error == null) {
+            get_trades(coindata.parent_coin_id, coindata.child_coin_id, settings.api_error_msg, function(trade_error, trades) {
+              if (trade_error == null) {
+                get_chartdata(coindata.parent_coin_id, coindata.child_coin_id, settings.api_error_msg, function (chart_error, chartdata) {
+                  if (chart_error == null)
+                    return cb(null, {buys: buys, sells: sells, trades: trades, stats: stats, chartdata: chartdata});
+                  else
+                    return cb(chart_error, null);
+                });
+              } else
+                return cb(trade_error, null);
+            });
+          } else
+            return cb(order_error, null);
+        });
+      } else
+        return cb(summary_error, null);
+    });
+  }
+};
@@ -983,7 +983,7 @@ exports.markets_page = {
  "show_market_select": true,
  // exchanges: Enable/disable api integration with any of the available built-in exchanges
  //            Enabled exchanges display a number of exchange-related metrics including market summary, 24 hour chart, most recent buy/sell orders and latest trade history
-  //            Supported exchanges: altmarkets, dex-trade, freiexchange/freixlite, nonkyc, poloniex, xeggex, yobit
+  //            Supported exchanges: altmarkets, dex-trade, dexomy, freiexchange/freixlite, nonkyc, poloniex, xeggex, yobit
  "exchanges": {
    // altmarkets: a collection of settings that pertain to the altmarkets exchange
    "altmarkets": {
@@ -1007,6 +1007,17 @@ exports.markets_page = {
      //                Ex: "LTC/BTC", "LTC/USDT", "LTC/ETH"
      "trading_pairs": [ "LTC/BTC" ]
    },
+    // dexomy: a collection of settings that pertain to the dexomy exchange    
+    "dexomy": {
+      // enabled: Enable/disable the dexomy exchange (true/false)
+      //          If set to false, the dexomy page will be completely inaccessible and no market data will be downloaded for this exchange
+      "enabled": false,
+      // trading_pairs: An array of market trading pair symbols
+      //                You can add as many trading pairs as necessary
+      //                All entries must specify your coins symbol as it is displayed on the exchange, followed by a slash (/) and ending with the symbol of the market or asset that is being traded against
+      //                Ex: "LTC/BTC", "LTC/USDT", "LTC/ETH"
+      "trading_pairs": [ "BTC/USDT" ]
+    },
    // freiexchange: a collection of settings that pertain to the freiexchange/freixlite exchange
    //               NOTE: freiexchange does not display a 24-hour chart due to a lack of OHLCV api data
    "freiexchange": {