Feat: done tcp

tcp/client.go

@@ -0,0 +1,45 @@
+package tcp
+
+import (
+	"encoding/json"
+	"net"
+)
+
+func Do(addr, route string, method Method, body []byte) ([]byte, error) {
+	conn, err := net.Dial("tcp", addr)
+	if err != nil {
+		return []byte{}, err
+	}
+	defer conn.Close()
+	header := RequestHeader{
+		Method: method,
+		Route:  route,
+	}
+
+	rawHeader, err := json.Marshal(header)
+	if err != nil {
+		return []byte{}, err
+	}
+	if err := sendFrame(conn, rawHeader); err != nil {
+		return []byte{}, err
+	}
+
+	if err := sendFrame(conn, body); err != nil {
+		return []byte{}, err
+	}
+
+	b, err := readFrame(conn)
+	if err != nil {
+		return []byte{}, err
+	}
+
+	return b, nil
+}
+
+func Get(addr, route string) ([]byte, error) {
+	return Do(addr, route, MethodGET, []byte{})
+}
+
+func Post(addr, route string, b []byte) ([]byte, error) {
+	return Do(addr, route, MethodPOST, b)
+}