[$350] Investigate Github organisation invite functionality

[jmgasper]

@afrisalyp - After discussing internally with Topcoder, we would like the Git link functionality for Github to also support organisation and team functionality, if possible.

We've investigated that in the past but haven't had much luck: #111 and #294

What we would like to have happen:

If a user hits the link to join a Github team:

1. Invite the user to the organisation (using a service account / PAT that has access to invite. We can't use the copilot token because the copilot may not be able to invite to the org)
2. Prompt the user to login to Github and show the OAuth permissions requested
3. User agrees to OAuth permissions
4. Get the user's OAuth token
5. Automatically accept the organisation invite on their behalf
6. Add the user to the team
7. Show the success page in the Topcoder-X UI

If a user is already in the organisation, the flow should still work and just add the user to the team.

Links

• https://docs.github.com/en/rest/reference/orgs#set-organization-membership-for-a-user
• https://github.community/t/github-api-to-accept-organization-invitation-by-member-user/13654/3
• https://docs.github.com/en/rest/reference/repos#accept-a-repository-invitation

[jmgasper]

Challenge https://www.topcoder.com/challenges/2b810859-ad92-416b-851a-ebf9af293ff6 has been created for this ticket.

This is an automated message for ghostar2020 via Topcoder X

[jmgasper]

Challenge https://www.topcoder.com/challenges/2b810859-ad92-416b-851a-ebf9af293ff6 has been assigned to afrisalyp.

This is an automated message for ghostar2020 via Topcoder X

[afrisalyp]

@jmgasper

Invite the user to the organisation (using a service account / PAT that has access to invite.

We need organisation owner access to invite member to the org.
How do we get the owner PAT?

[jmgasper]

@afrisalyp - Can we make that a configurable environment value?

[afrisalyp]

@jmgasper

Sure. But that will be applicable for one organisation only.

[jmgasper]

@afrisalyp - Good point. I'll ask TC.

[afrisalyp]

@jmgasper

Thanks.

[jmgasper]

@afrisalyp - We'll have to add a new DynamoDB table to map PAT with organisation. For now, we can just put something in there, for testing, but a future ticket will have to add a new page for admins to manage this mapping, thanks.