Legacy applications may create difficulties in running everyday business. Data can be found in disparate systems, while working teams chug along with manual work and failed efforts to find accurate information. As a result, these problems can hinder decision-making and increase the difficulty of meeting evolving needs.
However, these challenges require more than an additional technology lift. Oracle Cloud Application Services offer a development and integration framework for connecting Oracle Cloud Applications with existing applications. They can expose business data through REST APIs, create custom experiences, and automate workflows across systems.
For developers, modernization can include interacting with Oracle Cloud Applications REST endpoints, developing and configuring a Visual Builder service connection, configuring authentication, mapping JSON payloads, and moving data between applications using Oracle Integration.
Ultimately, understanding these capabilities can help technical teams modernize Oracle environments without treating cloud adoption as a simple lift-and-shift project.
Why Enterprises Are Rethinking Their Oracle Application Architecture
As business needs change, enterprises are rethinking their application infrastructure to improve connectivity, scalability, and flexibility.
1. Legacy Systems Can Limit Development Agility
Older applications can create data silos, manual work, complex integrations, and high maintenance requirements. They may also rely on custom interfaces that are difficult to update as business needs change.
Oracle Cloud Application Services give developers access to REST APIs and integration capabilities. Visual Builder can use these APIs through service connections, while Oracle Integration can connect Oracle applications with external systems. This allows development teams to extend Oracle functionality without rebuilding entire applications.
2. Enterprise Systems Need to Exchange Data
Business applications rarely operate independently. An order created in an e-commerce platform may need to reach Oracle Order Management, update inventory, trigger fulfillment, and eventually reach financial systems.
With Oracle Integration, developers can create integration flows that receive REST requests, transform payloads, invoke Oracle Cloud Application APIs, and return a response to the originating system. Oracle Integration 3 also provides a REST Adapter specifically for configuring REST-based integrations.
How Developers Can Use Oracle Cloud Application Services
1. Work With Oracle Cloud REST APIs
A developer can interact directly with an Oracle Cloud Applications REST endpoint when an application needs business data or needs to submit an update. For example, a simplified request to retrieve customer account information could look like this:
The response can then be consumed as JSON by a custom application or integration layer. In production, the exact resource, API version, authentication method, privileges, and query syntax should be taken from the REST API documentation for the Oracle Cloud Application being used.
2. Build Custom Experiences with Visual Builder
The Visual Builder component enables developers to build their custom interfaces using Oracle Cloud Applications REST services without having to create any of these services from scratch. For this, the developer can create a service connection and choose the REST endpoint the developer needs, test the connection to the REST endpoint, and link the response to UI components.
For instance, a team can set up a procurement dashboard, which brings supplier or purchasing information from Oracle Cloud Applications and shows only what employees need to access. As a result, this provides a targeted user experience while maintaining business data in Oracle.
3. Automate Oracle-to-External-System Integrations
Consider an enterprise that receives orders through an external commerce platform. Instead of having employees manually re-enter those orders into Oracle, a developer can create an Oracle Integration flow that:
- Receives the order through a REST endpoint.
- Validates required fields such as customer, product, quantity, and shipping information.
- Maps the external JSON structure to the Oracle Cloud Applications format.
- Calls the appropriate Oracle REST API.
- Returns a success or error response to the originating system.
- Logs failures so they can be investigated and replayed when appropriate.
Oracle Integration supports REST-based connectivity and can use adapters and mappings to connect applications without requiring developers to build every integration mechanism themselves.
Oracle-Specific Considerations for a Modernization Project
1. Use API Versions and Resources Deliberately
When connecting Visual Builder to Oracle Cloud Applications, use the correct REST resource, API version, schema, and endpoint. Using the documented API version instead of relying on "latest" can help maintain a more predictable integration.
2. Configure Authentication Before Building the UI
Set up authentication, permissions, and backend connections before connecting APIs to application components. Visual Builder supports options such as Oracle Cloud Account authentication, identity propagation, and fixed credentials, depending on the application architecture.
3. Test the Integration at the API Level
Test the endpoint before troubleshooting the finished application. Check authentication, HTTP methods, headers, payloads, responses, field mappings, and error handling to identify API or integration issues early.
From Cloud Migration to Oracle Application Modernization
Oracle Cloud modernization is more than moving legacy applications to the cloud. It can involve exposing Oracle business capabilities through REST APIs, extending applications with Visual Builder, orchestrating integrations through Oracle Integration, and creating custom interfaces around Oracle Cloud data.
With API-driven development, service connections, controlled authentication, data mapping, and integration testing, development teams can build a more connected Oracle environment while retaining the core capabilities of Oracle Cloud Applications. The goal is not simply to move existing workloads. It is to use Oracle's application, integration, and development capabilities to create systems that are easier to connect, extend, and maintain.
FAQs
1. What are Oracle Cloud Applications REST APIs?
They provide programmatic access to Oracle business resources, allowing developers to retrieve or modify data and connect Oracle applications with other systems.
2. How does Visual Builder connect to Oracle Cloud Applications?
Visual Builder can connect to Oracle Cloud services through its catalog, REST endpoints, or service specifications, allowing developers to use these services in custom applications.
3. Can Oracle Cloud integrate with non-Oracle applications?
Yes. Oracle Integration can connect Oracle Cloud Applications with external systems using REST and other supported integration methods.
4. What should developers test in an Oracle Cloud integration?
Test authentication, endpoints, HTTP methods, payloads, field mappings, permissions, and error handling before deployment.
5. Can developers build custom applications around Oracle Cloud?
Yes. Visual Builder can create custom interfaces that use Oracle Cloud Applications REST services while keeping Oracle as the underlying business platform.