* fix getBalance() to take asset` parameter as string or array

* fix parameters for `move()`

Author: dutu

lib/luno.js

@@ -43,10 +43,6 @@ function Luno (keyId, keySecret, options) {
   this.port = options.port || 443
   this.ca = options.ca
   this.pair = options.pair || 'XBTZAR'
-  if (options.base_account_id && options.counter_account_id) {
-    this.base_account_id = options.base_account_id
-    this.counter_account_id = options.counter_account_id
-  }
 
   this._requestMts = []
   this._requestsRefresh = this._requestsRefresh.bind(this)
@@ -235,8 +231,14 @@ Luno.prototype.getMove = function (options, callback) {
   return this._request('GET', `/api/1/move`, options, callback)
 }
 
-Luno.prototype.move = function (options, callback) {
-  return this._request('POST', `/api/1/move`, options, callback)
+Luno.prototype.move = function (amount, debit_account_id, credit_account_id, options, callback) {
+  let [params, cb] = defaults({
+    amount,
+    debit_account_id,
+    credit_account_id,
+  }, options, callback)
+
+  return this._request('POST', `/api/1/move`, params, cb)
 }
 
 Luno.prototype.listMoves = function (options, callback) {
@@ -319,14 +321,6 @@ Luno.prototype.postLimitOrder = function (type, volume, price, options, callback
     pair: this.pair,
   }, options, callback)
 
-  if (this.base_account_id && !params.base_account_id) {
-    params.base_account_id = this.base_account_id
-  }
-
-  if (this.counter_account_id && !params.counter_account_id) {
-    params.counter_account_id = this.counter_account_id
-  }
-
   return this._request('POST', '/api/1/postorder', params, cb)
 }
 
@@ -345,14 +339,6 @@ Luno.prototype.postMarketOrder = function (type, volume, options, callback) {
     pair: this.pair,
   }, options, callback)
 
-  if (this.base_account_id && !params.base_account_id) {
-    params.base_account_id = this.base_account_id
-  }
-
-  if (this.counter_account_id && !params.counter_account_id) {
-    params.counter_account_id = this.counter_account_id
-  }
-
   return this._request('POST', '/api/1/marketorder', params, cb)
 }
 
@@ -378,8 +364,16 @@ Luno.prototype.getOrderV3 = function (options, callback) {
   return this._request('GET', '/api/exchange/3/order', params, cb)
 }
 
-Luno.prototype.getBalance = function (assets = [], callback) {
-  let params = assets.length > 0 ? { assets } : null
+Luno.prototype.getBalance = function (asset, callback) {
+  let params = null
+  if (typeof asset === 'string') {
+    params = { assets: [asset] }
+  }
+
+  if (Array.isArray(asset)) {
+    params = { assets: asset }
+  }
+
   return this._request('GET', `/api/1/balance`, params, callback)
 }