Postman Pre-request Script: URL Encode Request Body

In Postman's Pre-request Script, you can use JavaScript's encodeURIComponent() function to URL encode your request body. Follow these steps to achieve this:

1. Open Postman and your desired request.
2. Navigate to the 'Pre-request Script' section within your request configuration.
3. Insert the following code snippet into the code box to URL encode the request body:

// Get the request body
const requestBody = pm.request.body.raw;

// URL encode the request body
const encodedBody = encodeURIComponent(requestBody);

// Update the request body
pm.request.body.raw = encodedBody;

// Set the Content-Type header to application/x-www-form-urlencoded
pm.request.headers.add({key: 'Content-Type', value: 'application/x-www-form-urlencoded'});

In this example, we first retrieve the request body and encode it using encodeURIComponent(). Then, we update the pm.request.body.raw with the encoded body. Finally, we add a 'Content-Type' header set to 'application/x-www-form-urlencoded' to ensure the server correctly processes the request.

Note that this example assumes your request body is a raw text, not JSON or other formats. If your request body is JSON, convert it to a string using JSON.stringify() before URL encoding.

This guide empowers you to properly prepare your request body for submission, ensuring smooth data transmission and server interaction.