Extend how to manipulate parameters at runtime to mention ability to do so from client libraries

[tfoote]

Issue Type

• 🐛 Bug / Problem
• ✏️ Typo / Grammar
• 📖 Outdated Content
• 🚀 Enhancement

Generated by Generative AI

No

Distribution

Rolling et al

Description

The parameter capabilities include the ability to interact with them at runtime from all the client libraries.

However the default parameter documentation doesn't mention that in the section: Manipulating parameter values at runtime

https://docs.ros.org/en/rolling/Concepts/Basic/About-Parameters.html#manipulating-parameter-values-at-runtime

https://github.com/ros2/ros2_documentation/blob/c8a8a89eb78503f22381bb9ee03c0b748d414255/source/Concepts/Basic/About-Parameters.rst?plain=1#L113C3-L119

Affected Pages/Sections

https://docs.ros.org/en/rolling/Concepts/Basic/About-Parameters.html#manipulating-parameter-values-at-runtime

Screenshots or Examples (if applicable)

No response

Suggested Fix

It would be good to add documentation to mention that and give pointers to some of the client libraries.

Similar to ROS 1 wiki:

Parameter Tools
The [rosparam](https://wiki.ros.org/rosparam) command-line tool enables you to query and set parameters on the Parameter Server using YAML syntax.


Client Library Support

Python
See the [rospy overview](https://wiki.ros.org/rospy/Overview/Parameter%20Server).


C++
See the [roscpp overview](https://wiki.ros.org/roscpp/Overview/Parameter%20Server).


Lisp
See [roslisp/Overview/Parameters](https://wiki.ros.org/roslisp/Overview/Parameters)

Additional Context

This came from this question where the asker didn't know that there was convenient ways to set parameters: https://robotics.stackexchange.com/questions/113686/c-equivalent-of-ros2-params-load

[akoushik2k]

Hi, I’d love to take this on as my first open-source contribution!
I’m new to contributing but eager to learn and get involved.

I noticed that the Using ros2 param page is already linked in the documentation section referenced in this issue. Before I proceed, I wanted to ask:

Would you like this section to be expanded to give more context about client library support (e.g., rclcpp, rclpy) and runtime parameter APIs?

Or is the goal mainly to ensure this functionality is clearer and more discoverable within the "Manipulating parameter values at runtime" section?

I’d appreciate your guidance so I can align the update with the intent of the issue. Looking forward to contributing!

[Humobot1812]

@tfoote Please assign this issue to me I have the repo setup on my system