Add PostgreSQL database option and more booking flow functionalities

interoperability/ocss/client.go

@@ -2,7 +2,15 @@ package ocss
 
 import "errors"
 
-type Client struct{}
+type Client struct {
+	BaseURL string
+}
+
+func NewClient(baseUrl string) *Client {
+	return &Client{
+		BaseURL: baseUrl,
+	}
+}
 
 func (c Client) GetDriverJourneys() ([]DriverJourney, error) {
 	return nil, errors.New("not implemented")