How can I change target url based on Org Name in Reverse Proxy?

Google Cloud Apigee
1

I’ve created a reverse proxy through apigee UI, now I’d like to change the target URL based on my org name, so I can have a single proxy to deploy on all orgs. Can someone let me know the steps to do this?

proxy.xml

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<TargetEndpoint name="default">
   <Description/>
    <FaultRules/>
    <PreFlow name="PreFlow">
      <Request/>
       <Response/>
   </PreFlow>
   <PostFlow name="PostFlow">
       <Request/>
     <Response/>
    </PostFlow>
   <Flows/>
   <HTTPTargetConnection>
       <Properties/>
       <URL>https://STRING_FOR_REPLACEMENT</URL>
    </HTTPTargetConnection>
</TargetEndpoint>


var orgname = context.getVariable("organization.name");
if (orgname == "DEV") {
    context.setVariable("systemUrl.myURL", "https://myDev.com/");
}
if (orgname == "STAGE") {
   context.setVariable("systemUrl.myURL", "https://myStage.com/");
}
if ((orgname == "LIVE") ) {
    context.setVariable("systemUrl.myURL", "https://live.com/");
}
var targetUrl = context.getVariable("target.url");
targetUrl = targetUrl.replace("STRING_FOR_REPLACEMENT", context.getVariable("systemUrl.myURL"));
targetUrl += context.getVariable("proxy.pathsuffix");
var querystring = context.getVariable("request.querystring");
if (querystring && (querystring.length > 0))
{
    targetUrl += "?" + querystring;
}

#####NOTE####
I'm using ReversePrxoy not NodeJS proxy
2

@LoganathanSellappa, you can use route rules to route the traffic to different rules based on the organization name.

Or if you are using the above javascript code, you can put a javascript policy at proxy preflow, to set the appropriate url according to the environment. But I suggest, route rules would be a better option to do this.

Also, you can add these urls in a KVM map instead of hardcoding it in your proxy.

3

@LoganathanSellappa, Use Target Servers to decouple concrete endpoint URLs from API Proxy TargetEndpoint configurations. Pls refer the below link.

https://docs.apigee.com/api-services/content/load-balancing-across-backend-servers