Can Postman render a file from a base64 string?

Question

One of my server responses is returning a PDF as a base 64 encoded string.

E.g.

{
    "fileName": "my-file.pdf",
    "base64EncodedFileContent": "JVBERi0xLjcKJeLjz9MNCj...

Is it possible to render this 64 bit string as a PDF inside my Postman collection?

I've looked at decoding the string into an environment variable using CryptoJS.enc.Base64.parse

I've also looked at https://docs.postman-echo.com/ to perhaps send the bytes back to me with a content type of application/pdf, however it nests any body you send inside a JSON object.

Note: This is just a tool of convenience to prevent people using the collection from having to use an external base64 -> PDF converter

Answer 1

You shouldn't need to import CryptoJS to decode base64... you could use something like this;

const response = pm.response.json().base64EncodedFileContent;
var decodedMessage = atob(response);
console.log(decodedMessage);

This might also help with 'vizualising' PDF's in Postman https://community.postman.com/t/visualize-pdf-on-postman-v8-4-0/23856