chore: update main.go

main.go

@@ -57,23 +57,26 @@ var (
 // -------------------------------
 
 func request(client *http.Client, method, url string, body interface{}) (*http.Response, error) {
-	var buf io.Reader
-	if body != nil {
-		data, err := json.Marshal(body)
-		if err != nil {
-			return nil, fmt.Errorf("failed to marshal request body: %w", err)
-		}
-		buf = bytes.NewBuffer(data)
-	}
+    var buf io.Reader
+    if body != nil {
+        data, err := json.Marshal(body)
+        if err != nil {
+            return nil, fmt.Errorf("failed to marshal request body: %w", err)
+        }
+        buf = bytes.NewBuffer(data)
+    }
 
-	req, err := http.NewRequest(method, url, buf)
-	if err != nil {
-		return nil, fmt.Errorf("failed to create request: %w", err)
-	}
+    req, err := http.NewRequest(method, url, buf)
+    if err != nil {
+        return nil, fmt.Errorf("failed to create request: %w", err)
+    }
 
-	req.Header.Set("X-API-KEY", portainerToken)
-	req.Header.Set("Content-Type", "application/json")
-	return client.Do(req)
+    req.Header.Set("X-API-KEY", portainerToken)
+    if method != "GET" {
+        req.Header.Set("Content-Type", "application/json")
+    }
+
+    return client.Do(req)
 }
 
 // -------------------------------