support US

README.md

@@ -396,6 +396,17 @@ binance.UseTestnet = true
 client := binance.NewClient(apiKey, secretKey)
 ```
 
+Use the `binance.UseUSDomain` flag to switch domain to binance.us, including both client creation and the wesockets methods.
+```go
+import (
+    "github.com/adshao/go-binance/v2"
+)
+
+binance.UseUSDomain = true
+client := binance.NewClient(apiKey, secretKey)
+```
+
+
 #### Futures (usd(s)-m futures)
 
 Use the `futures.UseTestnet` flag before calling the client creation and the websockets methods

v2/client.go

@@ -125,6 +125,7 @@ type FuturesAlgoOrderStatusType string
 // Endpoints
 var (
 	BaseAPIMainURL    = "https://api.binance.com"
+	BaseAPIMainUSURL  = "https://api.binance.us"
 	BaseAPITestnetURL = "https://testnet.binance.vision"
 	BaseAPIDemoURL    = "https://demo-api.binance.com"
 )
@@ -143,6 +144,9 @@ var UseTestnet = false
 // UseDemo switch all the API endpoints from production to the demo
 var UseDemo = false
 
+// UseUSDomain switch all the API endpoints from production to the binance.us
+var UseUSDomain = false
+
 // Global enums
 const (
 	SideTypeBuy  SideType = "BUY"
@@ -368,6 +372,9 @@ func getAPIEndpoint() string {
 	if UseDemo {
 		return BaseAPIDemoURL
 	}
+	if UseUSDomain {
+		return BaseAPIMainUSURL
+	}
 	return BaseAPIMainURL
 }
 

v2/futures/websocket_service.go

@@ -61,6 +61,11 @@ var (
 	ProxyUrl                            = ""
 )
 
+// UseUSDomain switch all the WS streams from production to the binance.us
+// currently future websocket streams are not supported on US domain, so this is set to constantly false
+const UseUSDomain = false
+
+
 func getWsProxyUrl() *string {
 	if ProxyUrl == "" {
 		return nil

v2/options/websocket_service.go

@@ -33,6 +33,10 @@ var (
 	ProxyUrl = ""
 )
 
+// UseUSDomain switch all the WS streams from production to the binance.us
+// currently option websocket streams are not supported on US domain, so this is set to constantly false
+const UseUSDomain = false
+
 // getWsEndpoint return the base endpoint of the WS according the UseTestnet flag
 func getWsEndpoint() string {
 	if UseTestnet {

v2/websocket_service.go

@@ -15,12 +15,15 @@ import (
 var (
 	// Endpoints
 	BaseWsMainURL          = "wss://stream.binance.com:9443/ws"
+	BaseUSWsMainURL        = "wss://stream.binance.us:9443/ws"
 	BaseWsTestnetURL       = "wss://stream.testnet.binance.vision/ws"
 	BaseWsDemoURL          = "wss://demo-stream.binance.com/ws"
 	BaseCombinedMainURL    = "wss://stream.binance.com:9443/stream?streams="
+	BaseUSCombinedMainURL  = "wss://stream.binance.us:9443/stream?streams="
 	BaseCombinedTestnetURL = "wss://stream.testnet.binance.vision/stream?streams="
 	BaseCombinedDemoURL    = "wss://demo-stream.binance.com/stream?streams="
 	BaseWsApiMainURL       = "wss://ws-api.binance.com:443/ws-api/v3"
+	BaseUSWsApiMainURL     = "wss://ws-api.binance.us:443/ws-api/v3"
 	BaseWsApiTestnetURL    = "wss://ws-api.testnet.binance.vision/ws-api/v3"
 	BaseWsApiDemoURL       = "wss://demo-ws-api.binance.com/ws-api/v3"
 	BaseWsAnnouncementURL  = "wss://api.binance.com/sapi/wss"
@@ -58,6 +61,9 @@ func getWsEndpoint() string {
 	if UseDemo {
 		return BaseWsDemoURL
 	}
+	if UseUSDomain {
+		return BaseUSWsMainURL
+	}
 	return BaseWsMainURL
 }
 
@@ -69,6 +75,9 @@ func getCombinedEndpoint() string {
 	if UseDemo {
 		return BaseCombinedDemoURL
 	}
+	if UseUSDomain {
+		return BaseUSCombinedMainURL
+	}
 	return BaseCombinedMainURL
 }
 
@@ -1189,5 +1198,8 @@ func getWsApiEndpoint() string {
 	if UseDemo {
 		return BaseWsApiDemoURL
 	}
+	if UseUSDomain {
+		return BaseUSWsApiMainURL
+	}
 	return BaseWsApiMainURL
 }