Use Shared State to Aggregate Data Across Rules

Open Requestly and create a new Modify Response rule.

Choose Dynamic JavaScript Modification in the rule options

Use the following code to store response values like products and currency:

Copyfunction modifyResponse(args) {
  const { method, url, response, responseType, requestHeaders, requestData, responseJSON } = args;

  // Extract data from response
  const productList = responseJSON.products;
  const currency = responseJSON.currency;

  // Store in shared state
  $sharedState.productList = productList;
  $sharedState.currency = currency;

  return response;
}

Create a new Modify Request Body rule in Requestly.

Select the Dynamic Modification option.

Inject the stored products and currency into your outgoing request
Here’s the code to include the previously saved data:

Copyfunction modifyRequestBody(args) {
  const { method, url, body, bodyAsJson } = args;

  // Retrieve shared state values
  const products = $sharedState.productList;
  const currency = $sharedState.currency;

  // Inject into request body
  return {
    ...bodyAsJson,
    products,
    currency
  };
}