Merge pull request #189 from GetFeedback/documentation/routing

Add documentation for routing capability

docs/features/routing.md

@@ -0,0 +1,23 @@
+# Routing
+
+Permits routing records to specific topic using [`jmespath`](https://jmespath.org/).  
+The routes are declared under `routes` with `jmesPath` as a matching condition and `topic` as the name for the topic to route the message to.
+
+If no route is matched, the record lands in `errorTopic`
+### Usage examples
+
+A filter-like JMESPath evaluation 
+
+```yaml
+  - name: produceActionToSinkTopic
+  type: dev.vox.platform.kahpp.configuration.topic.ProduceToTopicByRoute
+  config:
+    errorTopic: error
+    routes:
+      - jmesPath: value.actionType == 'email'
+        topic: email
+      - jmesPath: value.actionType == 'salesforce'
+        topic: salesforce
+      - jmesPath: value.actionType == 'slack'
+        topic: slack
+```

mkdocs.yml

@@ -21,5 +21,6 @@ nav:
           - Filters: features/filters.md
           - Http: features/http.md
           - Throttle: features/throttle.md
+          - Routing: features/routing.md
   - Developer Guide:
       - Spring Boot Starter: developer-guide/spring-boot-starter.md