Use OAuth on Bitbucket Cloud

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Bitbucket Cloud REST API integrations, and Atlassian Connect for Bitbucket add-ons, can use OAuth 2.0 to access resources in Bitbucket.

OAuth 2.0

Our OAuth 2 implementation supports all 4 of RFC-6749's grant flows.

This section provides the basic OAuth 2.0 information to register your consumer and set up OAuth 2.0 to make API calls.

Create a consumer

OAuth needs a key and secret, together these are know as an OAuth consumer. You can create a consumer on any existing workspace. To create a consumer, do the following:

From your profile avatar in the bottom left, click on the workspace in the Recent workspaces list or click All workspaces to open an entire list from which to choose.
Click Settings on the left sidebar to open the Workspace settings.
Click OAuth consumers under Apps and features on the left navigation.

Click the Add consumer button.

The system requests the following information:

Field	Description
Name	The display name for your consumer. This must be unique within your account. This is required.
Description	An optional description of what your consumer does.
Callback URL	Required for OAuth 2.0 consumers. When making requests you can include a call back URL in the request: If you do include the URL in a request it must be appended to the same URL configured in the consumer. So if your consumer callback URL is `example.com/add-on` the URL in your request must be something similar to `example.com/add-on/function`. If you don't include the URL in the request we redirect to the callback URL in the consumer.
URL	An optional URL where the curious can go to learn more about your cool application.

Click Save.
The system generates a key and a secret for you.
Toggle the consumer name to see the generated Key and Secret value for your consumer.

Access tokens

We support all 4 of RFC-6749's grant flows to obtain access tokens through the following URL's:

https://bitbucket.org/site/oauth2/authorize

https://bitbucket.org/site/oauth2/access_token

Grant types

Authorization code grant

The full-blown 3-LO flow. Request authorization from the end user by sending their browser to:

https://bitbucket.org/site/oauth2/authorize?client_id={client_id}&response_type=code

The callback includes the ?code={} query parameter that you can swap for an access token:

$ curl -X POST -u "client_id:secret" \
  https://bitbucket.org/site/oauth2/access_token \
  -d grant_type=authorization_code -d code={code}

Implicit grant

Useful for browser-based operations without server-side back end support. This grant type requests authorization from the user by directing their browser to:

https://bitbucket.org/site/oauth2/authorize?client_id={key}&response_type=token

That will redirect to the callback URL with a fragment containing the access token (#access_token={token}&token_type=bearer) where your page's JavaScript can pull it out of the URL.

Making requests

Once you have an access token, as per RFC-6750, you can use it in a request in any of the following ways (listed from most to least desirable):

Send it in a request header: Authorization: Bearer {access_token}
Include it in a (application/x-www-form-urlencoded) POST body as access_token={access_token}
Put in the query string of a non-POST: ?access_token={access_token}

Refresh tokens

Our access tokens expire in two hours. When this happens you'll get 401 responses.

Most access token grant response therefore include a refresh token that can then be used to generate a new access token, without the need for end user participation:

$ curl -X POST -u "client_id:secret"
  https://bitbucket.org/site/oauth2/access_token \
  -d grant_type=refresh_token -d refresh_token={refresh_token}

Scopes

Scopes are defined on the client/consumer instance. Bitbucket Cloud does not currently support the use of the optional scope parameter on the individual grant requests.

When the scope parameter is provided, Bitbucket will validate that it contains no scopes that were not already present on the client/consumer and fail if additional scopes are requested, but asking for fewer scopes will not affect the resulting access token.

The following scopes are available:

Scope name	Description
`account`	Grants read-only access to all the user's account information. see all email addresses language location website full name SSH keys user groups
`account:write`	Grants the ability to change properties on the user's account. delete the authorizing user's account manage the user's groups manipulate a user's email addresses change username, display name and avatar
team	Grants the ability to get a list of teams of which the current user is a member. This is covered by the teams endpoint. information about all the groups and teams I am a member or admin of
`team:write`	Grants (implies) the `team` scope and adds the ability to manage the teams on which the authorizing user is an administrator. manage team permissions
`repository`	Grants read access to all the repositories to which the authorizing user has access. Note that this scope does not give access to a repository's pull requests. access to the repository's source code clone over `https://` access the file browsing API download zip archives of the repository's contents the ability to view and use the issue tracker on any repository (created issues, comment, vote, etc) the ability to view and use the wiki on any repository (create/edit pages)
`repository:write`	Grants (implies) the `repository` scope and adds write access to all the repositories to which the authorizing user has access. No distinction is made between public or private repositories. This scope alone does not give access to the pull requests API. push access over https fork repositories
`repository:admin`	Grants admin access to all the repositories to which the authorizing user has access. No distinction is made between public or private repositories. This scope does not imply repository or repository:write. It gives access to the admin features of a repository only, not direct access to its contents. Of course it can be (mis)used to grant read access to another user account who can then clone the repository, but repositories that need to read or write source code would also request explicit read or write. This scope comes with access to the following functionality: view and manipulate committer mappings list and edit deploy keys ability to delete the repository view and edit repository permissions view and edit branch permissions import and export the issue tracker enable and disable the issue tracker list and edit issue tracker version, milestones, and components enable and disable the wiki list and edit default reviewers list and edit repository links (Jira/Bamboo/Custom) list and edit the repository webhooks initiate a repository ownership transfer
`pullrequest`	Grants read access to pull requests and the ability to collaborate on a specific pull request through comments, tasks, and approvals. This scope implies `repository`, giving read access to the pull request's destination repository. see and list pull requests create and resolve tasks
`pullrequest:write`	Grants `(implies`) the `pullrequest` scope and adds the ability to create, merge and decline pull requests. This scope also implies `repository:write`, giving write access to the pull request's destination repository. This is necessary to facilitate merging. merge pull requests decline pull requests create pull requests comment on pull requests approve pull requests
`snippet`	Grants read access to all the snippets to which the authorizing user has access. No distinction is made between public and private snippets (public snippets are accessible without any form of authentication). view any snippet create snippet comments
`snippet:write`	Grants write access to all the snippets the authorizing user can edit. No distinction is made between public and private snippets (public snippets are accessible without any form of authentication). This implies the Snippet Read scope which does not need to be requested separately. edit snippets delete snippets
`issue`	Grants the ability to interact with an issue tracker as if you had no other repository access. This scope does not imply any other scopes and does not give implicit access to the repository the issue is attached to. view, list and search issues create new issues comment on issues watch issues vote for issues
`issue:write`	Grants (implies) the `issue` scope and adds the ability to transition and delete issues. This scope does not imply any other scopes and does not give implicit access to the repository to which the issue is attached. transition issues delete issues
`wiki`	Grants access to wikis. No distinction is made between read and write as wikis are always editable by anyone. This scope does not imply any other scopes and does not give implicit access to the repository the wiki is attached to. view wikis create pages edit pages push to wikis clone wikis
`email`	Grants the ability to see the user's primary email address. This should make it easier to use Bitbucket Cloud as a login provider to add-ons or external applications.
`webhook`	This scope gives read access to existing webhook subscriptions on all resources you can access, without needing further scopes. This scope is required for any webhook related operation. list webhook subscriptions on any accessible repository, workspace, or snippet create/update/delete webhook subscriptions This means that a client can list all existing webhook subscriptions on repository foo/bar (assuming the principal user has access to this repository). The additional repository scope is not required for this. Likewise, existing webhook subscriptions for a repository's issue tracker can be retrieved without holding the issue scope. All that is required is the webhook scope. However, to create a webhook for issue:created, the client will need to have both the `webhook` and the `issue` scope.

Cloning a repository with an access token

Since add-ons will not be able to upload their own SSH keys to clone with, access tokens can be used as Basic HTTP Auth credentials to clone securely over HTTPS.

$ git clone https://x-token-auth:{access_token}@bitbucket.org/user/repo.git

The literal string x-token-auth as a substitute for username is required.

Our process is similar to GitHub, yet slightly different: the difference is GitHub puts the actual token in the username field.

Bitbucket Support