Added functionality to fetch order books for all markets

README.md

@@ -115,7 +115,7 @@ Example response:
 
 ### returnOrderBook(currencyA, currencyB, callback)
 
-Returns the order book for a given market.  
+Returns the order book for a given market. If currency A is specified as 'all' and currency B is not specified, then order books for all markets will be returned.
 Calls API method `returnOrderBook`.
 
     poloniex.returnOrderBook('VTC', 'BTC', function(err, data) {

lib/poloniex.js

@@ -138,9 +138,18 @@ module.exports = (function() {
         },
 
         returnOrderBook: function(currencyA, currencyB, callback) {
-            var parameters = {
-		currencyPair: joinCurrencies(currencyA, currencyB)
-	    };
+			if(currencyA === 'all' && typeof currencyB === 'function'){
+				//If the user specifies fetching all order books
+				callback = currencyB;
+				var parameters = {
+					currencyPair: 'all'
+				}
+			}
+			else{
+				var parameters = {
+					currencyPair: joinCurrencies(currencyA, currencyB)
+				};
+			}
 
             return this._public('returnOrderBook', parameters, callback);
         },

package.json

@@ -1,6 +1,6 @@
 {
   "name": "poloniex.js",
-  "version": "0.0.7",
+  "version": "0.0.8",
   "description": "Poloniex API client",
   "author": "Premasagar Rose <[email protected]>",
   "license": "MIT",