Scripting persist state between `onRequest` and `onResponse`

[edba]

In scripting it would be nice to be able to persist state between a request and its response, maybe via the context object or something similar. For example for holding on to the original requests url something like this could work:

function onRequest(context, url, request) {
  context.originalURL = url;
  request.schema = 'http';
  request.host = 'localhost';
  request.port = 8080;
  return request;
}


function onResponse(context, url, request, response) {
  // at this point `url` will be the updated one "localhost"
  // but context.originalURL would have the value of the original one.
  console.log(context.originalURL)
  return response;
}

this is a really simple example, but it would be useful to be able to reference state in onResponse that was derived inside onRequest

[NghiaTranUIT]

That makes sense. I will find a way to support shared states between the request and response call 👍

[NghiaTranUIT]

@edba let check out this build: https://download.proxyman.io/beta/Proxyman_2.5.3_Shared_State.dmg

You can use a global object sharedState to share the data between the onRequest/onResponse call. Please bear in mind that this state is reset for each script call 👍

function onRequest(context, url, request) {
  sharedState.url = url;
  sharedState.data = "custom";
  console.log(sharedState);
  return request;
}

function onResponse(context, url, request, response) {
   console.log(sharedState);
  
  // Inject and allow all origin
  response.headers["Access-Control-Allow-Origin"] = "*";

  // Done
  return response;
}

[edba]

@NghiaTranUIT awesome! yeah this works 👍

[NghiaTranUIT]

Glad to hear that work for you 🎉 😄

[NghiaTranUIT]

I officially released the sharedState for the Scripting in Proxyman 2.6.0. Please check it out and the Doc: https://docs.proxyman.io/scripting/environment-variables