add error handling

Author: yrobla

pkg/feeds/maven/maven.go

@@ -3,6 +3,7 @@ package maven
 import (
 	"bytes"
 	"encoding/json"
+	"errors"
 	"fmt"
 	"net/http"
 	"time"
@@ -72,6 +73,18 @@ func (feed Feed) fetchPackages(page int) ([]Package, error) {
 	}
 	defer resp.Body.Close()
 
+	// Handle rate limiting (HTTP status code 429).
+	if resp.StatusCode == http.StatusTooManyRequests {
+		time.Sleep(5 * time.Second)
+		return feed.fetchPackages(page) // Retry the request
+	}
+
+	// Handle other HTTP status codes
+	if resp.StatusCode != http.StatusOK {
+		newErr := errors.New("unexpected HTTP status code")
+		return nil, fmt.Errorf("%w", newErr)
+	}
+
 	// Decode response.
 	var response Response
 	err = json.NewDecoder(resp.Body).Decode(&response)