Merge branch 'v3' into feat_sse_method_body

Author: jeevatkm

client.go

@@ -2193,7 +2193,11 @@ func (c *Client) Clone(ctx context.Context) *Client {
 	cc.formData = cloneURLValues(c.formData)
 	cc.header = c.header.Clone()
 	cc.pathParams = maps.Clone(c.pathParams)
-	cc.credentials = c.credentials.Clone()
+
+	if c.credentials != nil {
+		cc.credentials = c.credentials.Clone()
+	}
+
 	cc.contentTypeEncoders = maps.Clone(c.contentTypeEncoders)
 	cc.contentTypeDecoders = maps.Clone(c.contentTypeDecoders)
 	cc.contentDecompressers = maps.Clone(c.contentDecompressers)

sse.go

@@ -363,14 +363,15 @@ func (es *EventSource) Get() error {
 	if isStringEmpty(es.url) {
 		return fmt.Errorf("resty:sse: event source URL is required")
 	}
+
 	if isStringEmpty(es.method) {
 		// It is up to the user to choose which http method to use, depending on the specific code implementation. No restrictions are imposed here.
 		// Ensure compatibility, use GET as default http method
 		es.method = defaultHTTPMethod
 	}
 
-	if _, found := es.onEvent[defaultEventName]; !found {
-		return fmt.Errorf("resty:sse: OnMessage function is required")
+	if len(es.onEvent) == 0 {
+		return fmt.Errorf("resty:sse: At least one OnMessage/AddEventListener func is required")
 	}
 
 	// reset to begin

sse_test.go

@@ -341,7 +341,7 @@ func TestEventSourceCoverage(t *testing.T) {
 
 	es.SetURL("https://sse.dev/test")
 	err2 := es.Get()
-	assertEqual(t, "resty:sse: OnMessage function is required", err2.Error())
+	assertEqual(t, "resty:sse: At least one OnMessage/AddEventListener func is required", err2.Error())
 
 	es.OnMessage(func(a any) {}, nil)
 	es.SetURL("//res%20ty.dev")