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Scripts in Requestly allow you to extend and customize your API requests and responses dynamically using JavaScript. These scripts enable you to manipulate requests before they are sent (Pre-request scripts) or process responses after they are received (Post-response scripts). With access to the full request and response objects, you can achieve advanced automation, validations, and transformations.

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Pre-Request Scripts

Pre-Request Scripts run before the API request is sent to the server. They allow you to modify request attributes, such as headers, body, query parameters, or even the URL. Pre Scripts are useful for adding authentication tokens, generating timestamps, or altering the request dynamically based on certain conditions.