This sample demonstrates how to use routing in ADK Workflows.

It takes user input and uses an LLM node to categorize it as a question, a statement, or other. Based on the classification, it appropriately routes the execution to a specialized agent or function to handle that specific type of input.

In ADK Workflows, routing allows conditionally executing different execution paths based on the output of a previous node.

• What is the capital of France?

• The weather is very nice today.

• Translate bonjour to english

graph TD
    START --> process_input
    process_input --> classify_input
    classify_input --> route_on_category
    route_on_category -->|question| answer_question
    route_on_category -->|statement| comment_on_statement
    route_on_category -->|other| handle_other

1. A node (agent or function) yields an Event with a specific route name:

   yield Event(route="your_route_name")

2. In the Workflow edges definition, conditional edges are constructed using a routing map dict as the second element of the edge tuple:

   (source_node, {"your_route_name": target_node})