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Sasha Sobran 162279358c chore: switch main to v2.0.0 GA (transition to v2)

Co-authored-by: Bo Yang <ybo@google.com>
Co-authored-by: Wei Sun (Jack) <weisun@google.com>
Co-authored-by: George Weale <gweale@google.com>
Co-authored-by: Swapnil Agarwal <swapnilag@google.com>
Co-authored-by: Xuan Yang <xygoogle@google.com>
Co-authored-by: Shangjie Chen <deanchen@google.com>
Co-authored-by: Yifan Wang <wanyif@google.com>
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2026-05-19 02:01:33 +00:00

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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

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

How To

A node (agent or function) yields an Event with a specific route name:
```
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:
```
(source_node, {"your_route_name": target_node})
```

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