add get global config

schemaregistry.go

@@ -604,6 +604,21 @@ func (c *Client) GetLatestSchema(subject string) (Schema, error) {
 	return c.getSubjectSchemaAtVersion(subject, SchemaLatestVersion)
 }
 
+// getGlobalConfig returns the default compatibility level of the schema registry
+func (c *Client) getGlobalConfig() (Config, error) {
+	var err error
+	var config = Config{}
+
+	resp, respErr := c.do(http.MethodGet, "/config", "", nil)
+	if respErr != nil && respErr.(ResourceError).ErrorCode != 404 {
+		return config, respErr
+	}
+	if resp != nil {
+		err = c.readJSON(resp, &config)
+	}
+	return config, err
+}
+
 // getConfigSubject returns the Config of global or for a given subject. It handles 404 error in a
 // different way, since not-found for a subject configuration means it's using global.
 func (c *Client) getConfigSubject(subject string) (Config, error) {
@@ -618,7 +633,6 @@ func (c *Client) getConfigSubject(subject string) (Config, error) {
 	if resp != nil {
 		err = c.readJSON(resp, &config)
 	}
-
 	return config, err
 }
 
@@ -650,6 +664,11 @@ func (c *Client) GetConfig(subject string) (Config, error) {
 	return c.getConfigSubject(subject)
 }
 
+// GetGlobalConfig returns the global compatibility level of the schema registry
+func (c *Client) GetGlobalConfig() (Config, error) {
+	return c.getGlobalConfig()
+}
+
 // SetConfig sets the configuration (Config type) for global Schema-Registry or a specific
 // subject. When Config returned has "compatibilityLevel" empty, it's using global settings.
 func (c *Client) SetConfig(subject, level string) error {