Feature: function to return list of supported algorithms

[raijinsetsu]

Describe the problem you'd like to have solved

While implementing some configuration validation logic, which accepts a array of Algorithm values to be used with jsonwebtoken, I found that the library does not expose the values in a way that can be used at run-time.

In Typescript, we have the Algorithms type, but there is no actual array against which to validate data received from outside sources. It also does not make sense to have that array in our code where we would need to keep it in sync with the library.

Describe the ideal solution

This can be accomplished fairly easily:

export const Algorithm = ['RS256', ...];

The types in "@types/jsonwebtoken" could be easily updated so that Algorithm is a type (as it is now) and also a const array of values.

Alternatives and current work-arounds

Manually keeping the array up-to-date in our software up-to-date with the library.

[raijinsetsu]

PS - I am willing to code and submit a PR for this, assuming the maintainers agree that this feature is useful.

[ghost]

@raijinsetsu This feature request actually belongs to "@types/jsonwebtoken" as you state, so a pull request here would not help.

If I checked correctly, then this was already included, so this issue can be closed.
https://github.com/DefinitelyTyped/DefinitelyTyped/blob/master/types/jsonwebtoken/index.d.ts#L143

[AlirezaEiji191379]

i will fix this issue!