Configure Pre-request Script
Configure Pre-request Script
The Pre-request script feature in Akto allows you to execute custom JavaScript code before each API test is run. This powerful functionality enables you to dynamically modify request parameters or perform any necessary pre-test operations.
Setting Up the Pre-request Script
In the text area labeled "Enter pre-request javascript here...", input your JavaScript code.
The script has access to several predefined variables:
method
: The HTTP method of the request (e.g., GET, POST)headers
: The headers of the requesturl
: The URL of the requestpayload
: The body of the requestqueryParams
: The query parameters of the request
Write your custom logic using these variables and any additional JavaScript you need.
Example Pre-request Script
Here's an example of a pre-request script that modifies the payload and method of a request:
This script sets the payload
to "test payload" and changes the method
to "POST" for every request.
Saving Your Configuration
After entering your pre-request script, click the "Save" button at the bottom right of the page to apply your changes.
Usage Notes
The pre-request script runs before every API test in your Akto environment.
You can use this feature to:
Add authentication tokens dynamically
Modify request data based on external factors
Implement custom logic that needs to run before each test
Be cautious when modifying core request properties, as it may affect the intended behaviour of your tests.
For complex operations, consider breaking your code into functions for better readability and maintenance.
By effectively using the Pre-request script feature, you can enhance the flexibility and power of your API testing process in Akto.
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