Added algorithm option to jwt policy

[Brady-Conn]

Hello,
Express-gateway is fantastic — it has become the backbone of our team’s api architecture. That being said, we have run into one small issue.
Problem: The JWT policy does not currently accept algorithms as an option to specify which algorithms can be used to verify tokens. Under the hood I noticed express-gateway uses passport-jwt, which uses jsonwebtoken. This is the same package we use. Both passport-jwt and jsonwebtoken support specifying algorithms. This is a good feature because otherwise jsonwebtoken will allow any algorithm to be used depending on what is decoded via the JWT header. Specifying algorithms allows enforcing of standards across our apis.
Solution: Expose the algorithms option in the JWT policy.
Here is the pr for the docs update: ExpressGateway/express-gateway.io#336

[codecov]

Codecov Report

❗ No coverage uploaded for pull request base (master@c294fa7). Click here to learn what that means.
The diff coverage is n/a.

[Brady-Conn]

The tests failing in these pipelines, failed once(with the same timeout error) locally for me, but have since passed. Is there a way to re-try these pipelines?

[XVincentX]

I can take care of this and make sure all tests pass. Can you rebase with latest master?

[Brady-Conn]

Awesome, thank you. I just pushed up that rebase, let me know if there is anything else I can do.

[XVincentX]

I think we should probably specify the items to be a string and then enum the possible choice. JWT has a fixed set of algorithms

[Brady-Conn]

That makes sense, I just pushed up a change to reflect that. I wasn't 100% sure about the syntax so let me know if I need to modify it at all.