Create api_gateway.go

sdk/api/api_gateway.go

@@ -0,0 +1,41 @@
+package api
+
+import (
+	"context"
+	"fmt"
+	"log"
+	"net/http"
+
+	"github.com/KOSASIH/pi-nexus-autonomous-banking-network/sdk/api/pb"
+	"google.golang.org/grpc"
+)
+
+type APIGateway struct {
+	pb.UnimplementedAPIGatewayServer
+}
+
+func (g *APIGateway) HandleRequest(ctx context.Context, req *pb.Request) (*pb.Response, error) {
+	// TO DO: implement API request handling logic
+	log.Printf("Received API request from %s", req.ClientID)
+	return &pb.Response{Result: "success"}, nil
+}
+
+func main() {
+	lis, err := net.Listen("tcp", ":50054")
+	if err != nil {
+		log.Fatalf("failed to listen: %v", err)
+	}
+
+	srv := grpc.NewServer()
+	pb.RegisterAPIGatewayServer(srv, &APIGateway{})
+
+	log.Println("API gateway listening on port 50054")
+	srv.Serve(lis)
+
+	http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
+		fmt.Fprint(w, "PiNexus SDK API Gateway")
+	})
+
+	log.Println("HTTP server listening on port 8080")
+	http.ListenAndServe(":8080", nil)
+}