Updating the OAuth2 Client for Services

To use an OAuth2 client for secure access to your Predix Platform service instance from your application, you must update your OAuth2 client to add additional authorities or scopes that are specific to each service.

1. In the Console view, select the Space where your services are located.
2. In the Services Instances page, select the UAA instance to configure.
3. Select the Configure Service Instance option.
4. In the UAA Dashboard login page, specify your admin client secret and click Login.
5. In UAA Dashboard, select the Client Management tab.
   The Client Management tab has two views, Clients and Services. The Services view displays the service instances that you have created for your services.

   Note: The service instances displayed in the Services view are the instances that you created using the UAA that you are trying to configure. The service instances that you created using some other UAA instance are not displayed on this page.
6. Select the Switch to Services View option.
7. In the Services view, select the service that you need to update.
8. Choose an existing client or choose the Create a new client option. If you chose to create a new client, follow the steps in Creating an OAuth2 Client.
9. Click Submit.
10. Click on the Switch to Clients View option.
11. In the Clients view, click the edit icon corresponding to the client added in the previous step.
12. Complete the Edit Client form.

    Field	Description
    Authorized Grant Types	Choose one or more of the following grant types: authorization_code When you use the authorization code grant type, the client directs the resource owner to UAA, which in turn directs the resource owner back to the client with the authorization code. client_credentials When you use the client credentials grant type, the OAuth2 endpoint in UAA accepts the client ID and client secret and provides Access Tokens. password When you use the resource owner password credentials grant type, the OAuth2 endpoint in UAA accepts the username and password and provides Access Tokens. refresh_token The refresh tokens are credentials used to obtain access tokens. You can choose this option to obtain refresh token from UAA. You can then use the refresh token to obtain a new access token from UAA when the current access token becomes invalid or expires, or to obtain additional access tokens with identical or narrower scope. implicit When you use the implicit grant type, UAA directly issues an Access Token to the client without authenticating the client. This reduces the number of round trips required to obtain an access token. For more information on grant types, see RFC 6749.
    Redirect URI	Specify a redirect URI to redirect the client after login (for example, http://example-app.com/welcome). This URI is used when you start using UAA as service provider for your external Identify provider.
    Scopes	By default, the client is assigned a few required scopes. For a new client, an administrator can select the scopes to be added based on the selected grant type. If you select the authorization_code, password and implicit grant type, you must update the scopes with service specific scopes. For a complete list of required scopes, see Authorities or Scopes Required for Platform Services. For a list of available UAA scopes, see Scopes Authorized by the UAA.
    Authorities	By default, the client is assigned a few required authorities. For a new client, an administrator can select the authorities to be added based on the selected grant type. If you select the client_credentials grant type, you must update the authorities with service specific authorities. For a complete list of scopes to be added for each service, see Authorities or Scopes Required for Platform Services. For a list of available UAA authorities, see Scopes Authorized by the UAA.
    Auto Approved Scopes	Specify scopes that can be approved automatically for the client without explicit approval from the resource owner.
    Allowed Providers	Specify the names of the external identity providers, if any. This field is required if you are using external identity providers with UAA as a service provider.
    Access Token Validity	Specifies the access token expiration time in ms.
    Refresh Token Validity	Specifies the refresh token expiration time in ms.