Encoding variables using Postman

Question

Is it possible to encode the variables using Postman itself?

Ex :

{
  "UserName": "[email protected]",
  "Password": "test@123",
  "ConfirmPassword": "test@123",
  "Role": "SuperAdmin"
}

Is it possible to encode the password field using Postman itself and send it to the server? I am passing the above JSON data inside the body/header section.

Is it possible to do something like this inside Postman

base64UrlEncode(Password) 

Answer 1

It's possible using Postman Pre-request Scripts and Postman Environment Variables .

First step is to set up the variables you want to encode.

Next, write a script. Postman has CryptoJs built-in, which you can use to encode strings. Here's a sample script to Base64 encode a string and set an environment variable to the encoded value:

var plainText = pm.environment.get('plainTextString');
var encoded = CryptoJS.enc.Base64.stringify(plainText);

console.log(`Encoded value: ${encoded}`) //if you want to see the value in the console
pm.environment.set("myEncodedRequestVariable", encoded);

Finally, use your encoded variables in the request body (or header) with this syntax:

{{myEncodedRequestVariable}} 

Answer 2

Here is how I handle key/secret encoding for connecting to appigee ouath

let keys = pm.environment.get("key") + ":" + pm.environment.get("secret");
let encodedKeys = CryptoJS.enc.Base64.stringify(CryptoJS.enc.Utf8.parse(keys));

pm.environment.set("encodedKeys", encodedKeys);

Using just stringify as proposed by the currently accepted answer I got an odd error stating r.clamp is not a function. To fix that I had to parse the keys first.