fix: trailing slash integration url issues (#1571)

packages/integrations/src/base/integration.ts

@@ -1,4 +1,4 @@
-import { extractErrorMessage } from "@homarr/common";
+import { extractErrorMessage, removeTrailingSlash } from "@homarr/common";
 import type { IntegrationSecretKind } from "@homarr/definitions";
 import { logger } from "@homarr/log";
 import type { TranslationObject } from "@homarr/translation";
@@ -29,6 +29,19 @@ export abstract class Integration {
     return secret.value;
   }
 
+  protected url(path: `/${string}`, queryParams?: Record<string, string | Date | number | boolean>) {
+    const baseUrl = removeTrailingSlash(this.integration.url);
+    const url = new URL(`${baseUrl}${path}`);
+
+    if (queryParams) {
+      for (const [key, value] of Object.entries(queryParams)) {
+        url.searchParams.set(key, value instanceof Date ? value.toISOString() : value.toString());
+      }
+    }
+
+    return url;
+  }
+
   /**
    * Test the connection to the integration
    * @throws {IntegrationTestConnectionError} if the connection fails