fix(): prevent the keep alive flag from completely overwriting an existing https agent configuration

Author: tiagosiebler

src/util/BaseRestClient.ts

@@ -78,9 +78,16 @@ export default abstract class BaseRestClient {
 
     // If enabled, configure a https agent with keepAlive enabled
     if (this.options.keepAlive) {
+      // Extract existing https agent parameters, if provided, to prevent the keepAlive flag from overwriting an existing https agent completely
+      const existingHttpsAgent = this.globalRequestOptions.httpsAgent as
+        | https.Agent
+        | undefined;
+      const existingAgentOptions = existingHttpsAgent?.options || {};
+
       // For more advanced configuration, raise an issue on GitHub or use the "networkOptions"
       // parameter to define a custom httpsAgent with the desired properties
       this.globalRequestOptions.httpsAgent = new https.Agent({
+        ...existingAgentOptions,
         keepAlive: true,
         keepAliveMsecs: this.options.keepAliveMsecs,
       });