restucturization of recipients payment methods

api/gateway/chain/client/config.go

@@ -0,0 +1,20 @@
+package client
+
+import "time"
+
+// Config captures connection settings for the chain gateway gRPC service.
+type Config struct {
+	Address     string
+	DialTimeout time.Duration
+	CallTimeout time.Duration
+	Insecure    bool
+}
+
+func (c *Config) setDefaults() {
+	if c.DialTimeout <= 0 {
+		c.DialTimeout = 5 * time.Second
+	}
+	if c.CallTimeout <= 0 {
+		c.CallTimeout = 3 * time.Second
+	}
+}