ADK Workflow Routing Sample

Overview

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.

Sample Inputs

What is the capital of France?
The weather is very nice today.
Translate bonjour to english

Graph

text

                  [ START ]
                      |
                      v
              [ process_input ]
                      |
                      v
             [ classify_input ]
                      |
                      v
            [ route_on_category ]
               /      |      \
      "question" "statement"  "other"
             /        |        \
            v         v         v
[answer_question]     |  [handle_other]
                      |
           [comment_on_statement]

How To

A node (agent or function) yields an Event with a specific route name:
python
```
yield Event(route="your_route_name")
```
In the Workflow edges definition, conditional edges are constructed using a routing map dict as the second element of the edge tuple:
python
```
(source_node, {"your_route_name": target_node})
```