fixes

README.md

@@ -133,7 +133,7 @@ type NBPCurrency struct {
 func NewCurrency(tableType string) *NBPCurrency
     NewCurrency - function creates new currency type
 
-func (c *NBPCurrency) CurrencyByDate(date string, code string) error
+func (c *NBPCurrency) CurrencyByDate(code string, date string) error
     CurrencyByDate - function downloads and writes data to exchange (exchangeC)
     slice, raw data (json) still available in result field
 
@@ -164,7 +164,7 @@ func (c *NBPCurrency) CurrencyLast(code string, last int) error
         last - as an alternative to date, the last <n> tables/rates
         can be retrieved
 
-func (c *NBPCurrency) CurrencyRaw(date string, last int, code string, format string) error
+func (c *NBPCurrency) CurrencyRaw(code string, date string, last int, format string) error
     CurrencyRaw - function downloads data in json or xml form
 
 
@@ -251,6 +251,7 @@ func (c *NBPCurrency) GetRawOutput() string
 
 type NBPGold struct {
 	GoldRates []GoldRate
+
 	// Has unexported fields.
 }
     NBPGold type

currency.go

@@ -102,7 +102,7 @@ Parameters:
 
     format - 'json' or 'xml'
 */
-func (c *NBPCurrency) CurrencyRaw(date string, last int, code string, format string) error {
+func (c *NBPCurrency) CurrencyRaw(code string, date string, last int, format string) error {
 	var err error
 
 	url := c.getCurrencyAddress(c.tableType, date, last, code)
@@ -129,7 +129,7 @@ Parameters:
     code - ISO 4217 currency code, depending on the type of the
     table available currencies may vary
 */
-func (c *NBPCurrency) CurrencyByDate(date string, code string) error {
+func (c *NBPCurrency) CurrencyByDate(code string, date string) error {
 	var err error
 
 	url := c.getCurrencyAddress(c.tableType, date, 0, code)

currency_test.go

@@ -14,7 +14,7 @@ func TestGetCurrencyCurrent(t *testing.T) {
 	littleDelay()
 	client := NewCurrency(table)
 
-	err := client.CurrencyByDate("current", currency)
+	err := client.CurrencyByDate(currency, "current")
 	if err != nil {
 		t.Errorf("expected: err == nil, received: err != nil")
 	}
@@ -52,7 +52,7 @@ func TestGetCurrencyDay(t *testing.T) {
 	littleDelay()
 	client := NewCurrency(table)
 
-	err := client.CurrencyByDate(day, currency)
+	err := client.CurrencyByDate(currency, day)
 	if err != nil {
 		t.Errorf("expected: err == nil, received: err != nil")
 	}
@@ -79,7 +79,7 @@ func TestGetCurrencyDaySaturdayFailed(t *testing.T) {
 
 	client := NewCurrency(table)
 
-	err := client.CurrencyByDate(day, currency)
+	err := client.CurrencyByDate(currency, day)
 	if err == nil {
 		t.Errorf("expected: err != nil, received: err == nil")
 	}
@@ -221,7 +221,7 @@ func TestCurrencyCSVOutput(t *testing.T) {
 	want := "TABLE,DATE,AVERAGE (PLN)"
 
 	client := NewCurrency("A")
-	err := client.CurrencyByDate("current", "EUR")
+	err := client.CurrencyByDate("EUR", "current")
 	if err != nil {
 		t.Error(err)
 	}