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Is user id unique across different installation?

imamudin naseem

I am developing a plugin for JIRA cloud, and have to get unique id for the user across installations.

JiraAuthenticationContext authContext = ComponentAccessor.getJiraAuthenticationContext();
ApplicationUser loggedInUser = authContext.getLoggedInUser();
loggerInUser.getId(); //10000

For me loggerInUser.getId() returns 10000. So can there be a case where it returns the same id(i.e 10000) for different user in a different team, different project ??

If yes, what is the best way to uniquely identify a user?

Accepted answers

All comments

Jobin Kuruvilla [Adaptavist]

The id is unique across teams and projects. It is unique within a JIRA installation but you might find the same id if you are querying a different instance of JIRA.

imamudin naseem

@Jobin Kuruvilla [Adaptavist] Thanks for answering.

what do you mean by "a different instance of JIRA"?

Do two JIRA installations on JIRA Cloud mean two instances?

Nic Brough -Adaptavist-

There are hundreds of thousands of different, separate servers out there running Jira instances. On some of them, I log in as nbrough. In a couple of them, that will be user 10000. In most of them, it won't be, I will have a different ID for my account.

Cloud is slightly different - it uses Atlassian accounts. My Atlassian account lets me access around 30 of them. Although I am only using one Atlassian account, the ID you'll find for it will vary across all of them

So, yes, "two Cloud installations are two instances", and "no, you cannot assume that user 10000 on instance 1 is the same account as 10000 on instance 2". You will need to be looking at the whole account, matching it on the Atlassian ID (email is probably the best proxy for that)

imamudin naseem

@Nic Brough -Adaptavist- Thanks for the clarity.

With email too, we'll not be able to uniquely identify a user. user might be registered to two instances with same email.

I need to create an identifier for user across instances.

If some how I can get instance id, instanceid.concat(userId) can be used as indentifier. I am not sure if there is a way to get instance id.

Please let me know if you have some way of creating an identifier for user across instances.

minaseem

I am writing a plugin which appears as web panel in right bar of issue page. First of all user will be doing oauth will some third party app. Then I am storing access tokens(which came via oauth) using PluginSettingsFactory, which stores data in key-value format. I want to store access tokens with some unique key like ACCESS_TOKEN_{UserId} which I am struggling to create.

Once oauth is done, I would be asking user for select some configuration which will come as form on issue page's right bar.

Nic Brough -Adaptavist-

You don't need some form of botched incorrect uniqueness for that, you don't actually care where else the account has been used, and you're not vulnerable to attack because it's a separate application.

I don't understand what you think you need here.

minaseem

So, you are that I should not worry about creating unique key. I can just use ACCESS_TOKEN_{jiraUser.getId()} as key since for other user with same id it will be separate instance, separate environment. So it is not gonna collide. Right?

imamudin naseem

So, you are saying that I should not worry about creating unique key. I can just use ACCESS_TOKEN_{jiraUser.getId()} as key since for other user with same id it will be separate instance, separate environment. So it is not gonna collide. Right?

Nic Brough -Adaptavist-

Correct, it's not needed because they're separate.

minaseem

Thanks a lot @Nic Brough -Adaptavist- for the help

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