feat(auth): Bearer Auth Support (oauth 2.0)

[Chhekur]

Description

Please describe what does this Pull Request fix or add?.

Information that is useful here:

• The What: Adding support for Bearer based auth method
• The Why: Now user can authenticate the client with Bearer token too
• Type of change: New Feature
• Breaking change: no
• Related to an issue: Not sure
• Jira Version + Type: Both

Example:

Let us know how users can use or test this functionality.

tp := jira.BearerAuthTransport {
  Token: "<Bearer Token>"
}

jiraClient, err := jira.NewClient(tp.Client(), host)

Checklist

• Unit or Integration tests added
  • Good Path
  • Error Path
• Commits follow conventions described here:
  • Conventional Commits 1.0.0
  • The seven rules of a great Git commit message
• Commits are squashed such that
  • There is 1 commit per isolated change
• I've not made extraneous commits/changes that are unrelated to my change.

[andygrunwald]

Hey @Chhekur,

thanks for your pull request and the effort you put in.
I just want to drop an FYI that we, the maintainers, are quite limited in time right now, due to other obligations. It will take some time to look into this PR and move on. Thanks for understanding and your patience.

[afdesk]

Hi @andygrunwald!
thanks for your library, it's really useful!

but we have the issue with Jira Server (DC), we need the bearer token for auth.

Is there a way to speed this PR?
thanks! look forward your decision.

[andygrunwald]

Hey @afdesk,
right now, my time is quite limited to work on this library.
We are looking for sponsors to fund the work and shift it to a more sustainable project.
As you can see we have a few Pull Requests piling up and the library needs a couple of improvements.

I (and the team) need a bit more time to go through it.
If you are interested in funding this Pull Request or the development in general, this would speed this up (mainly it allows us to prioritize this work over other work). Just contact me at andygrunwald+github (at) gmail (dot). com

[Chhekur]

Hi @andygrunwald! thanks for your library, it's really useful!

but we have the issue with Jira Server (DC), we need the bearer token for auth.

Is there a way to speed this PR? thanks! look forward your decision.

Hey, we started maintaining the fork of this library and we update the library very frequently.
so if you still looking for this change you can use our fork for the same and request for new features as well if you want.

https://github.com/interviewstreet/go-jira

[benjivesterby]

@Chhekur can you please rebase this on current master branch so I can merge this?

[Chhekur]

@Chhekur can you please rebase this on current master branch so I can merge this?

Hey @benjivesterby,
I rebase it with the current master branch.

[priteau]

@benjivesterby, I don't think you should have merged this, since it duplicates the PATAuthTransport feature already added in #422.