I have an api that is protected by JWT and Authorize attribute and at the client I use jquery ajax call to deal with it.
This works fine, however I now need to be able to secure downloading of files so I can't set a header Bearer value, can it be done in the URI as an url parameter?
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UPDATE: This is what I ended up doing for my scenario which is an in-house project and very low volume but security is important and it might need to scale in future:
When user logs in I generate a random download key and put it in their user record in the db along with the expiry date of their JWT and return the download key to the client. The download route is protected to only allow a download if there is a query parameter that has the download key and that key exists in the user records and that expiry date has not passed. This way the dl key is unique per user, valid as long as the user's auth session is valid and can be revoked easily.
Although it is technically possible to include a JWT in the URL, it is strongly discouraged. See the quote from here, which explains why it's a bad idea:
Don't pass bearer tokens in page URLs: Bearer tokens SHOULD NOT be passed in page URLs (for example, as query string parameters). Instead, bearer tokens SHOULD be passed in HTTP message headers or message bodies for which confidentiality measures are taken. Browsers, web servers, and other software may not adequately secure URLs in the browser history, web server logs, and other data structures. If bearer tokens are passed in page URLs, attackers might be able to steal them from the history data, logs, or other unsecured locations.
However, if you have no choice or just don't care about security practices, see Technetium's answer.