Changes to the compse yml and the way and amout of artikeltexte are delivered and taht not duplicates are displayed

server-app/main.go

@@ -206,7 +206,7 @@ func main() {
 		if err := withConn(r, func(conn *pgx.Conn) error {
 
 			rows, err := conn.Query(r.Context(), `
-				SELECT title, link, summary, image, published_at
+				SELECT article_id, title, link, summary, image, published_at
 				FROM articles
 				WHERE image IS NOT NULL
 				ORDER BY COALESCE(published_at, created_at) DESC
@@ -238,16 +238,40 @@ func main() {
 			w.Write([]byte("\n"))
 			flusher.Flush()
 
+			seen := make(map[string]struct{})
+			rowCount := 0
+
 			for rows.Next() {
+				rowCount++
+				var articleID *string
 				var title, link, summary string
 				var image *string
 				var published *time.Time
 
-				if err := rows.Scan(&title, &link, &summary, &image, &published); err != nil {
+				if err := rows.Scan(&articleID, &title, &link, &summary, &image, &published); err != nil {
 					return err
 				}
 
+				id := ""
+				if articleID != nil {
+					id = strings.TrimSpace(*articleID)
+				}
+				if id == "" {
+					if link != "" {
+						id = link
+					} else if title != "" {
+						id = title
+					} else {
+						id = fmt.Sprintf("row:%d", rowCount)
+					}
+				}
+				if _, exists := seen[id]; exists {
+					continue
+				}
+				seen[id] = struct{}{}
+
 				item := map[string]interface{}{
+					"id":          id,
 					"title":       title,
 					"link":        link,
 					"text":        summary,