Chapter 5 Designing the integration Layer requirements, that is, data can be in any format. For example, SOAP, XML, JSON, REST, comma-separated values, MS-Excels, databases, etc. would be transformed as per the DXP UI requirement, for example, Restful-JSON. However, without changing existing systems we can consume the services from the existing system and transform the data as per the DXP UI requirement, which makes the DXP integration lean and flexible. Integration Technology Stack and Architecture The integration technology stack depends upon integration architectural patterns, which are monolithic and microservices architecture. You would choose for your application while developing the DXP’s integration layer. Monolithic A monolithic architectural integration technology stack contains one of the integration frameworks according to your integration requirements, such as Apache Camel or other integration framework, as listed in Figure 5-3. These integration frameworks consume the data API from other third-party applications, transform the data according to the client application, and expose the API to the client application. Services such as mobile services, portal services, OTP services, ERP services, master data management (MDM) services, etc. are part of one single application. Figure 5-3. Monolithic integration 168