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Application Builder Cloud Service 17.1.3 release allows users to expose an external web service as a business object by creating a custom business object provider (BOP). In this blog we will create a Business object leveraging the REST APIs provided by GitHub using the custom BOP template that comes out of the box.

Evaluate the REST resource

GitHub exposes a set of REST APIs to fetch information regarding the user’s account.The complete list of all resources that can be fetched and the authentication schemes available can be seen here https://developer.github.com/v3/

For the purposes of this blog I have chosen https://api.github.com/users/shraybansal/repos to fetch the repositories information for the user shraybansal, whose account consists of two public test repositories.  If the user provides the Basic Auth credentials during authentication, then the REST request fetches information regarding private and public repositories associated with the authenticated user. Note that the REST API only fetches information of public repositories the user is associated with if no credentials are provided.

Even though GitHub supports Cross Origin Resource Sharing (CORS) and allows AJAX requests from all origins, an important detail to note is that in this blog we have leveraged the BOP Authenticator which implicitly takes care of the CORS request made through BOP. If BOP Authenticator is not leveraged during configuration then CORS will have to be enabled on the server to allow AJAX requests from the ABCS instance. Moreover, the REST APIs should be SSL enabled (https). Read the complete article here.

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Technorati Tags: PaaS,Cloud,Middleware Update,WebLogic,WebLogic Community,Oracle,OPN,Jürgen Kress

As you start building more complex applications in Oracle Application Builder Cloud Service, you’ll might need to define more complex interactions between objects or validations on rows of data or specific fields.

In the new version of ABCS that we rolled out in February we added these type of capabilities.

There are several things you could do with the new Business Rules section of ABCS

• Triggers – allow you create logic that will be executed in specific CRUD events such as when you insert, remove or update a record.
• Object Validators – allowing you to define checks across multiple fields in your object
• Field Validators – allowing you to define a check on specific field values.
• Object Functions – reusable functions that can be called from the other points

Note that these logic points will be running on the server side of ABCS.

In the video below I demonstrate a couple of these capabilities. You’ll learn how to update one object when a specific value is set in another object’s field. You’ll also see how to check whether a combination of values in fields in a record is valid. Watch the video here.

WebLogic Partner Community

For regular information become a member in the WebLogic Partner Community please visit: http://www.oracle.com/partners/goto/wls-emea ( OPN account required). If you need support with your account please contact the Oracle Partner Business Center.

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Technorati Tags: PaaS,Cloud,Middleware Update,WebLogic,WebLogic Community,Oracle,OPN,Jürgen Kress

A common use case for applications that have multiple pages is passing values between pages. For example you might want to pick up a specific record or value in one page and then use that as a parameter for a query in another page.

In the February release or Oracle Application Builder Cloud Service as part of the extension hook points that we provide, we added support for shared resources. These are JavaScript libraries you can add to your application – and that can be used across your app.

In the demo below I show you how you can use the built-in sample template for a shared resource to define a variable, and then how that variable is exposed in various places in the product through the expression builder allowing you to set its value in one page and use that value in another one. Watch the video here.

WebLogic Partner Community

For regular information become a member in the WebLogic Partner Community please visit: http://www.oracle.com/partners/goto/wls-emea ( OPN account required). If you need support with your account please contact the Oracle Partner Business Center.

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Technorati Tags: PaaS,Cloud,Middleware Update,WebLogic,WebLogic Community,Oracle,OPN,Jürgen Kress