fix: add array params with key (#237)

* fix: add array query params with key

* chore: use encoded key and value for array params

Co-authored-by: Sascha Galley <[email protected]>

Author: SaschaGalley

templates/base/http-clients/fetch-http-client.eta

@@ -69,17 +69,18 @@ export class HttpClient<SecurityDataType = unknown> {
         this.securityData = data;
     }
 
+    private encodeQueryParam(key: string, value: any) {
+        const encodedKey = encodeURIComponent(key);
+        return `${encodedKey}=${encodeURIComponent(typeof value === "number" ? value : `${value}`)}`;
+    }
+
     private addQueryParam(query: QueryParamsType, key: string) {
-      const value = query[key];
-      const encodedKey = encodeURIComponent(key);
-      return `${encodedKey}=${encodeURIComponent(
-        typeof value === 'number' ? value : `${value}`,
-      )}`;
+        return this.encodeQueryParam(key, query[key]);
     }
 
     private addArrayQueryParam(query: QueryParamsType, key: string) {
         const value = query[key];
-        return `${value.map(this.addQueryParam).join('&')}`;
+        return value.map((v: any) => this.encodeQueryParam(key, v)).join("&");
     }
 
     protected toQueryString(rawQuery?: QueryParamsType): string {