Add basic CCXT support for 70+ exchanges (coinbase#25)

* Add product and ticker methods * Add loadOrderbook method * Add loadBalances * Update index * Throw on unsupported operations * Update node version requirement
macchado · Sep 20, 2017 · 293a255 · 293a255
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diff --git a/README.md b/README.md
@@ -1,6 +1,6 @@
 # GDAX Trading toolkit
 Provide all the tools traders need, both professional and hobbyist alike, to create automated trading bots on the
-GDAX and supported digital asset exchanges. Note: Node 6.11 is required.
+GDAX and supported digital asset exchanges. Note: Node 7.6 or above is required.
 
 
 ## Install

diff --git a/package.json b/package.json
@@ -49,6 +49,7 @@
     "@types/ws": "0.0.37",
     "bignumber.js": "4.0.2",
     "bintrees": "1.0.1",
+    "ccxt": "^1.6.72",
     "commander": "2.9.0",
     "crypto": "0.0.3",
     "gdax": "0.3.1",

diff --git a/src/exchanges/PublicExchangeAPI.ts b/src/exchanges/PublicExchangeAPI.ts
@@ -73,9 +73,13 @@ export interface Ticker {
 
 export interface Product {
     id: string;
+    // The id on the underlying source exchange
+    sourceId: string;
     baseCurrency: string;
     quoteCurrency: string;
     baseMinSize: BigJS;
     baseMaxSize: BigJS;
     quoteIncrement: BigJS;
+    // The original data from the underlying exchange
+    sourceData: any;
 }
diff --git a/src/exchanges/bitfinex/BitfinexExchangeAPI.ts b/src/exchanges/bitfinex/BitfinexExchangeAPI.ts
@@ -118,11 +118,13 @@ export class BitfinexExchangeAPI implements PublicExchangeAPI, AuthenticatedExch
                     const quote = prod.pair.slice(3, 6);
                     return {
                         id: REVERSE_PRODUCT_MAP[prod.pair] || prod.pair,
+                        sourceId: prod.pair,
                         baseCurrency: REVERSE_CURRENCY_MAP[base] || base,
                         quoteCurrency: REVERSE_CURRENCY_MAP[quote] || quote,
                         baseMinSize: Big(prod.minimum_order_size),
                         baseMaxSize: Big(prod.maximum_order_size),
-                        quoteIncrement: Big(prod.minimum_order_size)
+                        quoteIncrement: Big(prod.minimum_order_size),
+                        sourceData: prod
                     };
                 });
                 return products;

diff --git a/src/exchanges/bittrex/BittrexAPI.ts b/src/exchanges/bittrex/BittrexAPI.ts
@@ -55,11 +55,13 @@ export class BittrexAPI implements PublicExchangeAPI, AuthenticatedExchangeAPI {
                 const result: Product[] = data.result.map((market: any) => {
                     return {
                         id: market.MarketName, // same format as GDAX, so no need to map
+                        sourceId: market.MarketName,
                         baseCurrency: market.BaseCurrency,
                         quoteCurrency: market.marketCurrency,
                         baseMinSize: Big(market.MinTradeSize),
                         baseMaxSize: Big('1e18'),
-                        quoteIncrement: Big(market.MinTradeSize)
+                        quoteIncrement: Big(market.MinTradeSize),
+                        sourceData: market
                     };
                 });
                 return resolve(result);