Introduction
Testing bidding scenarios in ad tech is essential, and the AAX Bid Simulator helps you do just that by mimicking bid requests and responses. With Requestly, you can easily modify HTTP request headers to fine-tune these simulations, all without coding. This post will show you how to configure the AAX Bid Simulator using Requestly’s header modification feature.
Why Use Requestly?
Requestly is a handy tool that allows you to modify, redirect, or block HTTP requests and responses. This is particularly useful when testing how different header values affect your ad tech setups.
Setting Up AAX Bid Simulator with Requestly
1. Install Requestly
First, install the Requestly extension from the Chrome Web Store or Requestly’s official website.Â
2. Set Up a Modify Headers Rule
The Modify Headers Rule
 in Requestly lets you change HTTP headers of requests and responses. You can add, edit, or remove headers to test different scenarios, such as adjusting user-agent strings or troubleshooting CORS issues. This feature helps you understand how your application interacts with different server configurations and APIs.
- Request Header → Add , modify or remove HTTP headers in the request.
- Source Condition →Specify which URLs this rule should affect.
- Filter Out Condition → Exclude certain requests from this rule
Or create your own Rule
by following the steps below
Here’s how you can modify headers to work with the AAX Bid Simulator:
- Open Requestly: Open Requestly app .
- Create a New Rule:Â Click onÂ
New Rule
 and chooseÂModify Headers.
- Enter the URL Pattern: Add the URL pattern for the AAX Bid Simulator’s request endpoint. This tells Requestly when to apply the rule.
- Modify Headers:Â Add or edit headers, likeÂ
X-AAX-PricePoint
 orÂX-AAX-Video-Dimensions
, based on what you want to test. - Save the Rule:Â Once done, save the rule.
Interactive Guide​
Here’s the guide to understanding the Modify Header rule.
Conclusion
Configuring the AAX Bid Simulator using header modifications with Requestly is straightforward and can greatly enhance your testing capabilities. Whether you’re a developer testing different bid scenarios or a QA simulating errors, Requestly provides the flexibility and control you need.
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