CODEWITHSUNDEEP
apigee
lony
lony

Reputation: 7809

Apigee remove URL string before forwarding request to target

I want to transform a URL before it is redirected to the target, removing a string. I have the following flow in Apigee:

USER -> APIGEE -> APPLICATION -> APIGEE -> USER

The user requests and then its URL should be rewritten removing bar from the URL. 

BEFORE apigee.url.com/foo/bar/pBxATaojIn8tk5dvQdNJ
AFTER  target.url.com/foo/pBxATaojIn8tk5dvQdNJ

I use Proxy Endpoints and Target Endpoints and try to rewrite using a PreFlow hook with Javascript in the Target Endpoint, without success rewriting the proxy.pathsuffix. How can I solve this?

Upvotes: 1

Views: 4072

Answers (4)

Claudio Heidel
Claudio Heidel

Reputation: 1

I use this script to do this

// Replace string in incoming proxy URL path

var proxyurl  = context.getVariable("proxy.url").trim();
var targeturl  = context.getVariable("target.url").trim();
var pathsuffix = context.getVariable("proxy.pathsuffix").trim();


var qpa = [];
if(proxyurl.split("?").length > 1) {
  queryparam = proxyurl.split("?")[1]
  qpa = qpa.concat(queryparam.split ("&"));
}

if(targeturl.split("?").length > 1) {
  queryparam = targeturl.split("?")[1]
  qpa = qpa.concat(queryparam.split ("&"));
}

context.setVariable("target.copy.pathsuffix", false);

if(targeturl.split("?").length > 0) queryparam = targeturl.split("?")[1]
var url = targeturl.split("?")[0] + pathsuffix.split("/toberemoved")[1];
if (url.slice(-1) !== "/") url +="/";
if (qpa.length > 0){
   url+= '?' + qpa.join("&");
}
context.setVariable("target.url", url);

Upvotes: 0

Dan H
Dan H

Reputation: 1828

I solved this similar to how you did it. See my answer on another SO question that answers this.

Upvotes: 0

Pim H
Pim H

Reputation: 223

From my understanding proxy.pathsuffix is a read only variable so you can't override it.

Assign your target endpoint to target.url instead. (I usually use in Assign Message Policy of the request)

Example:

<AssignVariable>
        <Name>target.url</Name>
        <Ref>yourTargetUrlValue</Ref>
</AssignVariable>

In my Assign Message Policy of the request, I have added the block of code above for defined my target url.

You can assign directly like <Ref>http://test.com</Ref> or assign via variable like <Ref>{targetUrlVal}</Ref>

If you got the url from somewhere, don't forget to assign value to your variable before use it by using context.setVariable("targetUrlVal", "http://test-01.com");

Hopefully my answer will help you.

Upvotes: 0

lony
lony

Reputation: 7809

I now use the following solution:

// Disable copy path
context.setVariable("target.copy.pathsuffix", false);

// Replace string in incoming proxy URL path
var proxyPathSuffix = context.getVariable("proxy.pathsuffix");
var fooBarAfter = proxyPathSuffix.replace('/fooToReplace', '');

// Fetch target outgoing url path
var targetBasePath = context.getVariable("target.basepath");
var urlPath = targetBasePath.concat(fooBarAfter);

// Replace outgoing url
var targetUrl = context.getVariable("target.url");
targetUrl = targetUrl.replace(targetBasePath, urlPath);
context.setVariable("target.url", targetUrl);

I came up with it looking at the available variables here. As this is JS, if someone comes up with a better solution I would be happy!

Upvotes: 1

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