add_two_ints_server

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Description

A ROS2 service server node that provides addition functionality. It receives two integers from clients and returns their sum. This demonstrates basic service server implementation in Python.

Services

• Service: /add_two_ints

  • Type: example_interfaces/srv/AddTwoInts

  • Description: Adds two integers and returns the sum

  • Request: int64 a, int64 b

  • Response: int64 sum

Example Usage

# Run the service server
ros2 run demo_nodes_py add_two_ints_server

The server will log incoming requests:

[INFO] [add_two_ints_server]: Incoming request
a: 2 b: 3

To test the service:

# Terminal 1: Run the server
ros2 run demo_nodes_py add_two_ints_server

# Terminal 2: Call the service
ros2 service call /add_two_ints example_interfaces/srv/AddTwoInts "{a: 5, b: 7}"

Or use the provided client:

# Terminal 1: Run the server
ros2 run demo_nodes_py add_two_ints_server

# Terminal 2: Run the client
ros2 run demo_nodes_py add_two_ints_client