feat(fjage.js): changing agentsForService to also reject promise if n…

…o response

gateways/js/src/fjage.js

@@ -723,7 +723,11 @@ export class Gateway {
  async agentForService(service) {
  let rq = { action: 'agentForService', service: service };
  let rsp = await this._msgTxRx(rq);
- if (!rsp || !rsp.agentID) return;
+ if (!rsp) {
+ if (this._returnNullOnError) return null;
+ else throw new Error('Unable to get agent for service');
+ }
+ if (!rsp.agentID) return null;
  return new AgentID(rsp.agentID, false, this);
  }
 
@@ -737,7 +741,11 @@ export class Gateway {
  let rq = { action: 'agentsForService', service: service };
  let rsp = await this._msgTxRx(rq);
  let aids = [];
- if (!rsp || !Array.isArray(rsp.agentIDs)) return aids;
+ if (!rsp) {
+ if (this._returnNullOnError) return aids;
+ else throw new Error('Unable to get agents for service');
+ }
+ if (!Array.isArray(rsp.agentIDs)) return aids;
  for (var i = 0; i < rsp.agentIDs.length; i++)
  aids.push(new AgentID(rsp.agentIDs[i], false, this));
  return aids;