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## 9 Extensibility

Extensibility in Routing Hub refers to template extensibility and is achieved by specifying the extended templates for request and response kernel transformation templates. And as part of extensibility, Routing Hub merges the output of kernel template and custom template in terms of JSON / XML merging.

In case of request, Routing Hub will send the merged output as request payload to provider.

In case of response, Routing Hub will return the merged output as response back to consumer

Figure 9-1 Extensibility - Example

Description of "Figure 9-1 Extensibility - Example"

Note:

Order of existing elements in custom template should be same as kernel template.

- XML merging attributes