Isaac ROS JSON Info Generator

Package Summary

Version	4.2.0
License	Apache-2.0
Build type	AMENT_PYTHON
Use	RECOMMENDED

Repository Summary

Description	VDA5050-compatible mission controller
Checkout URI	https://github.com/nvidia-isaac-ros/isaac_ros_mission_client.git
VCS Type	git
VCS Version	main
Last Updated	2026-02-20
Dev Status	UNKNOWN
Released	UNRELEASED
Contributing	Help Wanted (-) Good First Issues (-) Pull Requests to Review (-)

Package Description

JSON Info Generator

Maintainers

Isaac ROS Maintainers

Authors

No additional authors.

Isaac ROS JSON Info Generator

Overview

The isaac_ros_json_info_generator package has the JsonInfoGeneratorNode that collects data/messages from an arbitrary number of topics (of any defined ROS message type). It converts the collected messages into a JSON string, stores that string in a std_msgs/String, and publishes that ROS 2 string to /info, where the mission client (i.e. isaac_ros_vda5050_client) will collect and then relay that information to the mission dispatcher. The node also subscribes to the topic /order_id (std_msgs/String) and stores that as the current order_id; if the new order_id value is different from the one stored, it will clear the messages it collected and start collecting messages again.

Launch Scripts

`isaac_ros_json_info_generator` Launch Script

This launch script under the launch directory brings up the JsonInfoGenerator node. This launch script uses a parameter YAML file under the config folder in json_info_generator_params.yaml. These are the following parameters that users can configure: | Parameter | Description | Default Value | | ————————- | ——————————————————————————————————————————————————————————————————- | —————- | | ros_subscriber_types | The message types for each topic the user wants the node to subscribe to | [] (empty array) | | ros_subscriber_topics | The topic names for each topic the user wants the node to subscribe to. Note: Each element in this parameter’s array corresponds to the element of the same index in ros_subscriber_types | [] (empty array) | | ros_pub_sub_queue | The queue value used for the publishers and subscribers generated in this node. | 10 | | messages_aggregated_count | if messages_aggregated is set to True, this value sets the number of messages to store for each topic before removing the old messages. The messages will be removed in a first-in-first-out order. | 10 | | update_period | How often the node should publish the messages collected (in seconds) | 1 |

Usage

After building this package, you can executable this node by running:

ros2 launch isaac_ros_json_info_generator isaac_ros_json_info_generator.launch.py

You can modify the parameter values by changing the values in config/json_info_generator_params.yaml.

CHANGELOG

No CHANGELOG found.

Package Dependencies

Deps	Name
	isaac_ros_common
	ament_copyright
	ament_flake8
	ament_pep257

System Dependencies

Name
python3-pytest

Dependant Packages

Name	Deps
isaac_ros_mission_client
isaac_ros_vda5050_client

Launch files

No launch files found

Messages

No message files found.

Services

No service files found

Plugins

No plugins found.

Recent questions tagged `isaac_ros_json_info_generator` at Robotics Stack Exchange

No version for distro jazzy showing github. Known supported distros are highlighted in the buttons above.

isaac_ros_json_info_generator package from isaac_ros_mission_client repo

isaac_ros_cloud_control_interface isaac_ros_json_info_generator isaac_ros_mega_controller isaac_ros_mega_node_monitor isaac_ros_mission_client isaac_ros_mqtt_bridge isaac_ros_scene_recorder isaac_ros_scene_recorder_interface isaac_ros_vda5050_client isaac_ros_vda5050_client_bringup vda5050_action_handler vda5050_action_handler_plugins vda5050_msgs

ROS Distro
github

Package Summary

Version	4.2.0
License	Apache-2.0
Build type	AMENT_PYTHON
Use	RECOMMENDED

Repository Summary

Description	VDA5050-compatible mission controller
Checkout URI	https://github.com/nvidia-isaac-ros/isaac_ros_mission_client.git
VCS Type	git
VCS Version	main
Last Updated	2026-02-20
Dev Status	UNKNOWN
Released	UNRELEASED
Contributing	Help Wanted (-) Good First Issues (-) Pull Requests to Review (-)

Package Description

JSON Info Generator

Maintainers

Isaac ROS Maintainers

Authors

No additional authors.

Isaac ROS JSON Info Generator

Overview

The isaac_ros_json_info_generator package has the JsonInfoGeneratorNode that collects data/messages from an arbitrary number of topics (of any defined ROS message type). It converts the collected messages into a JSON string, stores that string in a std_msgs/String, and publishes that ROS 2 string to /info, where the mission client (i.e. isaac_ros_vda5050_client) will collect and then relay that information to the mission dispatcher. The node also subscribes to the topic /order_id (std_msgs/String) and stores that as the current order_id; if the new order_id value is different from the one stored, it will clear the messages it collected and start collecting messages again.

Launch Scripts

`isaac_ros_json_info_generator` Launch Script

This launch script under the launch directory brings up the JsonInfoGenerator node. This launch script uses a parameter YAML file under the config folder in json_info_generator_params.yaml. These are the following parameters that users can configure: | Parameter | Description | Default Value | | ————————- | ——————————————————————————————————————————————————————————————————- | —————- | | ros_subscriber_types | The message types for each topic the user wants the node to subscribe to | [] (empty array) | | ros_subscriber_topics | The topic names for each topic the user wants the node to subscribe to. Note: Each element in this parameter’s array corresponds to the element of the same index in ros_subscriber_types | [] (empty array) | | ros_pub_sub_queue | The queue value used for the publishers and subscribers generated in this node. | 10 | | messages_aggregated_count | if messages_aggregated is set to True, this value sets the number of messages to store for each topic before removing the old messages. The messages will be removed in a first-in-first-out order. | 10 | | update_period | How often the node should publish the messages collected (in seconds) | 1 |

Usage

After building this package, you can executable this node by running:

ros2 launch isaac_ros_json_info_generator isaac_ros_json_info_generator.launch.py

You can modify the parameter values by changing the values in config/json_info_generator_params.yaml.

CHANGELOG

No CHANGELOG found.

Package Dependencies

Deps	Name
	isaac_ros_common
	ament_copyright
	ament_flake8
	ament_pep257

System Dependencies

Name
python3-pytest

Dependant Packages

Name	Deps
isaac_ros_mission_client
isaac_ros_vda5050_client

Launch files

No launch files found

Messages

No message files found.

Services

No service files found

Plugins

No plugins found.

Recent questions tagged `isaac_ros_json_info_generator` at Robotics Stack Exchange

No version for distro kilted showing github. Known supported distros are highlighted in the buttons above.

isaac_ros_json_info_generator package from isaac_ros_mission_client repo

isaac_ros_cloud_control_interface isaac_ros_json_info_generator isaac_ros_mega_controller isaac_ros_mega_node_monitor isaac_ros_mission_client isaac_ros_mqtt_bridge isaac_ros_scene_recorder isaac_ros_scene_recorder_interface isaac_ros_vda5050_client isaac_ros_vda5050_client_bringup vda5050_action_handler vda5050_action_handler_plugins vda5050_msgs

ROS Distro
github

Package Summary

Version	4.2.0
License	Apache-2.0
Build type	AMENT_PYTHON
Use	RECOMMENDED

Repository Summary

Description	VDA5050-compatible mission controller
Checkout URI	https://github.com/nvidia-isaac-ros/isaac_ros_mission_client.git
VCS Type	git
VCS Version	main
Last Updated	2026-02-20
Dev Status	UNKNOWN
Released	UNRELEASED
Contributing	Help Wanted (-) Good First Issues (-) Pull Requests to Review (-)

Package Description

JSON Info Generator

Maintainers

Isaac ROS Maintainers

Authors

No additional authors.

Isaac ROS JSON Info Generator

Overview

The isaac_ros_json_info_generator package has the JsonInfoGeneratorNode that collects data/messages from an arbitrary number of topics (of any defined ROS message type). It converts the collected messages into a JSON string, stores that string in a std_msgs/String, and publishes that ROS 2 string to /info, where the mission client (i.e. isaac_ros_vda5050_client) will collect and then relay that information to the mission dispatcher. The node also subscribes to the topic /order_id (std_msgs/String) and stores that as the current order_id; if the new order_id value is different from the one stored, it will clear the messages it collected and start collecting messages again.

Launch Scripts

`isaac_ros_json_info_generator` Launch Script

This launch script under the launch directory brings up the JsonInfoGenerator node. This launch script uses a parameter YAML file under the config folder in json_info_generator_params.yaml. These are the following parameters that users can configure: | Parameter | Description | Default Value | | ————————- | ——————————————————————————————————————————————————————————————————- | —————- | | ros_subscriber_types | The message types for each topic the user wants the node to subscribe to | [] (empty array) | | ros_subscriber_topics | The topic names for each topic the user wants the node to subscribe to. Note: Each element in this parameter’s array corresponds to the element of the same index in ros_subscriber_types | [] (empty array) | | ros_pub_sub_queue | The queue value used for the publishers and subscribers generated in this node. | 10 | | messages_aggregated_count | if messages_aggregated is set to True, this value sets the number of messages to store for each topic before removing the old messages. The messages will be removed in a first-in-first-out order. | 10 | | update_period | How often the node should publish the messages collected (in seconds) | 1 |

Usage

After building this package, you can executable this node by running:

ros2 launch isaac_ros_json_info_generator isaac_ros_json_info_generator.launch.py

You can modify the parameter values by changing the values in config/json_info_generator_params.yaml.

CHANGELOG

No CHANGELOG found.

Package Dependencies

Deps	Name
	isaac_ros_common
	ament_copyright
	ament_flake8
	ament_pep257

System Dependencies

Name
python3-pytest

Dependant Packages

Name	Deps
isaac_ros_mission_client
isaac_ros_vda5050_client

Launch files

No launch files found

Messages

No message files found.

Services

No service files found

Plugins

No plugins found.

Recent questions tagged `isaac_ros_json_info_generator` at Robotics Stack Exchange

No version for distro rolling showing github. Known supported distros are highlighted in the buttons above.

isaac_ros_json_info_generator package from isaac_ros_mission_client repo

isaac_ros_cloud_control_interface isaac_ros_json_info_generator isaac_ros_mega_controller isaac_ros_mega_node_monitor isaac_ros_mission_client isaac_ros_mqtt_bridge isaac_ros_scene_recorder isaac_ros_scene_recorder_interface isaac_ros_vda5050_client isaac_ros_vda5050_client_bringup vda5050_action_handler vda5050_action_handler_plugins vda5050_msgs

ROS Distro
github

Package Summary

Version	4.2.0
License	Apache-2.0
Build type	AMENT_PYTHON
Use	RECOMMENDED

Repository Summary

Description	VDA5050-compatible mission controller
Checkout URI	https://github.com/nvidia-isaac-ros/isaac_ros_mission_client.git
VCS Type	git
VCS Version	main
Last Updated	2026-02-20
Dev Status	UNKNOWN
Released	UNRELEASED
Contributing	Help Wanted (-) Good First Issues (-) Pull Requests to Review (-)

Package Description

JSON Info Generator

Maintainers

Isaac ROS Maintainers

Authors

No additional authors.

Isaac ROS JSON Info Generator

Overview

The isaac_ros_json_info_generator package has the JsonInfoGeneratorNode that collects data/messages from an arbitrary number of topics (of any defined ROS message type). It converts the collected messages into a JSON string, stores that string in a std_msgs/String, and publishes that ROS 2 string to /info, where the mission client (i.e. isaac_ros_vda5050_client) will collect and then relay that information to the mission dispatcher. The node also subscribes to the topic /order_id (std_msgs/String) and stores that as the current order_id; if the new order_id value is different from the one stored, it will clear the messages it collected and start collecting messages again.

Launch Scripts

`isaac_ros_json_info_generator` Launch Script

This launch script under the launch directory brings up the JsonInfoGenerator node. This launch script uses a parameter YAML file under the config folder in json_info_generator_params.yaml. These are the following parameters that users can configure: | Parameter | Description | Default Value | | ————————- | ——————————————————————————————————————————————————————————————————- | —————- | | ros_subscriber_types | The message types for each topic the user wants the node to subscribe to | [] (empty array) | | ros_subscriber_topics | The topic names for each topic the user wants the node to subscribe to. Note: Each element in this parameter’s array corresponds to the element of the same index in ros_subscriber_types | [] (empty array) | | ros_pub_sub_queue | The queue value used for the publishers and subscribers generated in this node. | 10 | | messages_aggregated_count | if messages_aggregated is set to True, this value sets the number of messages to store for each topic before removing the old messages. The messages will be removed in a first-in-first-out order. | 10 | | update_period | How often the node should publish the messages collected (in seconds) | 1 |

Usage

After building this package, you can executable this node by running:

ros2 launch isaac_ros_json_info_generator isaac_ros_json_info_generator.launch.py

You can modify the parameter values by changing the values in config/json_info_generator_params.yaml.

CHANGELOG

No CHANGELOG found.

Package Dependencies

Deps	Name
	isaac_ros_common
	ament_copyright
	ament_flake8
	ament_pep257

System Dependencies

Name
python3-pytest

Dependant Packages

Name	Deps
isaac_ros_mission_client
isaac_ros_vda5050_client

Launch files

No launch files found

Messages

No message files found.

Services

No service files found

Plugins

No plugins found.

Recent questions tagged `isaac_ros_json_info_generator` at Robotics Stack Exchange

isaac_ros_json_info_generator package from isaac_ros_mission_client repo

isaac_ros_cloud_control_interface isaac_ros_json_info_generator isaac_ros_mega_controller isaac_ros_mega_node_monitor isaac_ros_mission_client isaac_ros_mqtt_bridge isaac_ros_scene_recorder isaac_ros_scene_recorder_interface isaac_ros_vda5050_client isaac_ros_vda5050_client_bringup vda5050_action_handler vda5050_action_handler_plugins vda5050_msgs

ROS Distro
github

Package Summary

Version	4.2.0
License	Apache-2.0
Build type	AMENT_PYTHON
Use	RECOMMENDED

Repository Summary

Description	VDA5050-compatible mission controller
Checkout URI	https://github.com/nvidia-isaac-ros/isaac_ros_mission_client.git
VCS Type	git
VCS Version	main
Last Updated	2026-02-20
Dev Status	UNKNOWN
Released	UNRELEASED
Contributing	Help Wanted (-) Good First Issues (-) Pull Requests to Review (-)

Package Description

JSON Info Generator

Maintainers

Isaac ROS Maintainers

Authors

No additional authors.

Isaac ROS JSON Info Generator

Overview

The isaac_ros_json_info_generator package has the JsonInfoGeneratorNode that collects data/messages from an arbitrary number of topics (of any defined ROS message type). It converts the collected messages into a JSON string, stores that string in a std_msgs/String, and publishes that ROS 2 string to /info, where the mission client (i.e. isaac_ros_vda5050_client) will collect and then relay that information to the mission dispatcher. The node also subscribes to the topic /order_id (std_msgs/String) and stores that as the current order_id; if the new order_id value is different from the one stored, it will clear the messages it collected and start collecting messages again.

Launch Scripts

`isaac_ros_json_info_generator` Launch Script

This launch script under the launch directory brings up the JsonInfoGenerator node. This launch script uses a parameter YAML file under the config folder in json_info_generator_params.yaml. These are the following parameters that users can configure: | Parameter | Description | Default Value | | ————————- | ——————————————————————————————————————————————————————————————————- | —————- | | ros_subscriber_types | The message types for each topic the user wants the node to subscribe to | [] (empty array) | | ros_subscriber_topics | The topic names for each topic the user wants the node to subscribe to. Note: Each element in this parameter’s array corresponds to the element of the same index in ros_subscriber_types | [] (empty array) | | ros_pub_sub_queue | The queue value used for the publishers and subscribers generated in this node. | 10 | | messages_aggregated_count | if messages_aggregated is set to True, this value sets the number of messages to store for each topic before removing the old messages. The messages will be removed in a first-in-first-out order. | 10 | | update_period | How often the node should publish the messages collected (in seconds) | 1 |

Usage

After building this package, you can executable this node by running:

ros2 launch isaac_ros_json_info_generator isaac_ros_json_info_generator.launch.py

You can modify the parameter values by changing the values in config/json_info_generator_params.yaml.

CHANGELOG

No CHANGELOG found.

Package Dependencies

Deps	Name
	isaac_ros_common
	ament_copyright
	ament_flake8
	ament_pep257

System Dependencies

Name
python3-pytest

Dependant Packages

Name	Deps
isaac_ros_mission_client
isaac_ros_vda5050_client

Launch files

No launch files found

Messages

No message files found.

Services

No service files found

Plugins

No plugins found.

Recent questions tagged `isaac_ros_json_info_generator` at Robotics Stack Exchange

No version for distro galactic showing github. Known supported distros are highlighted in the buttons above.

isaac_ros_json_info_generator package from isaac_ros_mission_client repo

isaac_ros_cloud_control_interface isaac_ros_json_info_generator isaac_ros_mega_controller isaac_ros_mega_node_monitor isaac_ros_mission_client isaac_ros_mqtt_bridge isaac_ros_scene_recorder isaac_ros_scene_recorder_interface isaac_ros_vda5050_client isaac_ros_vda5050_client_bringup vda5050_action_handler vda5050_action_handler_plugins vda5050_msgs

ROS Distro
github

Package Summary

Version	4.2.0
License	Apache-2.0
Build type	AMENT_PYTHON
Use	RECOMMENDED

Repository Summary

Description	VDA5050-compatible mission controller
Checkout URI	https://github.com/nvidia-isaac-ros/isaac_ros_mission_client.git
VCS Type	git
VCS Version	main
Last Updated	2026-02-20
Dev Status	UNKNOWN
Released	UNRELEASED
Contributing	Help Wanted (-) Good First Issues (-) Pull Requests to Review (-)

Package Description

JSON Info Generator

Maintainers

Isaac ROS Maintainers

Authors

No additional authors.

Isaac ROS JSON Info Generator

Overview

The isaac_ros_json_info_generator package has the JsonInfoGeneratorNode that collects data/messages from an arbitrary number of topics (of any defined ROS message type). It converts the collected messages into a JSON string, stores that string in a std_msgs/String, and publishes that ROS 2 string to /info, where the mission client (i.e. isaac_ros_vda5050_client) will collect and then relay that information to the mission dispatcher. The node also subscribes to the topic /order_id (std_msgs/String) and stores that as the current order_id; if the new order_id value is different from the one stored, it will clear the messages it collected and start collecting messages again.

Launch Scripts

`isaac_ros_json_info_generator` Launch Script

This launch script under the launch directory brings up the JsonInfoGenerator node. This launch script uses a parameter YAML file under the config folder in json_info_generator_params.yaml. These are the following parameters that users can configure: | Parameter | Description | Default Value | | ————————- | ——————————————————————————————————————————————————————————————————- | —————- | | ros_subscriber_types | The message types for each topic the user wants the node to subscribe to | [] (empty array) | | ros_subscriber_topics | The topic names for each topic the user wants the node to subscribe to. Note: Each element in this parameter’s array corresponds to the element of the same index in ros_subscriber_types | [] (empty array) | | ros_pub_sub_queue | The queue value used for the publishers and subscribers generated in this node. | 10 | | messages_aggregated_count | if messages_aggregated is set to True, this value sets the number of messages to store for each topic before removing the old messages. The messages will be removed in a first-in-first-out order. | 10 | | update_period | How often the node should publish the messages collected (in seconds) | 1 |

Usage

After building this package, you can executable this node by running:

ros2 launch isaac_ros_json_info_generator isaac_ros_json_info_generator.launch.py

You can modify the parameter values by changing the values in config/json_info_generator_params.yaml.

CHANGELOG

No CHANGELOG found.

Package Dependencies

Deps	Name
	isaac_ros_common
	ament_copyright
	ament_flake8
	ament_pep257

System Dependencies

Name
python3-pytest

Dependant Packages

Name	Deps
isaac_ros_mission_client
isaac_ros_vda5050_client

Launch files

No launch files found

Messages

No message files found.

Services

No service files found

Plugins

No plugins found.

Recent questions tagged `isaac_ros_json_info_generator` at Robotics Stack Exchange

No version for distro iron showing github. Known supported distros are highlighted in the buttons above.

isaac_ros_json_info_generator package from isaac_ros_mission_client repo

isaac_ros_cloud_control_interface isaac_ros_json_info_generator isaac_ros_mega_controller isaac_ros_mega_node_monitor isaac_ros_mission_client isaac_ros_mqtt_bridge isaac_ros_scene_recorder isaac_ros_scene_recorder_interface isaac_ros_vda5050_client isaac_ros_vda5050_client_bringup vda5050_action_handler vda5050_action_handler_plugins vda5050_msgs

ROS Distro
github

Package Summary

Version	4.2.0
License	Apache-2.0
Build type	AMENT_PYTHON
Use	RECOMMENDED

Repository Summary

Description	VDA5050-compatible mission controller
Checkout URI	https://github.com/nvidia-isaac-ros/isaac_ros_mission_client.git
VCS Type	git
VCS Version	main
Last Updated	2026-02-20
Dev Status	UNKNOWN
Released	UNRELEASED
Contributing	Help Wanted (-) Good First Issues (-) Pull Requests to Review (-)

Package Description

JSON Info Generator

Maintainers

Isaac ROS Maintainers

Authors

No additional authors.

Isaac ROS JSON Info Generator

Overview

The isaac_ros_json_info_generator package has the JsonInfoGeneratorNode that collects data/messages from an arbitrary number of topics (of any defined ROS message type). It converts the collected messages into a JSON string, stores that string in a std_msgs/String, and publishes that ROS 2 string to /info, where the mission client (i.e. isaac_ros_vda5050_client) will collect and then relay that information to the mission dispatcher. The node also subscribes to the topic /order_id (std_msgs/String) and stores that as the current order_id; if the new order_id value is different from the one stored, it will clear the messages it collected and start collecting messages again.

Launch Scripts

`isaac_ros_json_info_generator` Launch Script

This launch script under the launch directory brings up the JsonInfoGenerator node. This launch script uses a parameter YAML file under the config folder in json_info_generator_params.yaml. These are the following parameters that users can configure: | Parameter | Description | Default Value | | ————————- | ——————————————————————————————————————————————————————————————————- | —————- | | ros_subscriber_types | The message types for each topic the user wants the node to subscribe to | [] (empty array) | | ros_subscriber_topics | The topic names for each topic the user wants the node to subscribe to. Note: Each element in this parameter’s array corresponds to the element of the same index in ros_subscriber_types | [] (empty array) | | ros_pub_sub_queue | The queue value used for the publishers and subscribers generated in this node. | 10 | | messages_aggregated_count | if messages_aggregated is set to True, this value sets the number of messages to store for each topic before removing the old messages. The messages will be removed in a first-in-first-out order. | 10 | | update_period | How often the node should publish the messages collected (in seconds) | 1 |

Usage

After building this package, you can executable this node by running:

ros2 launch isaac_ros_json_info_generator isaac_ros_json_info_generator.launch.py

You can modify the parameter values by changing the values in config/json_info_generator_params.yaml.

CHANGELOG

No CHANGELOG found.

Package Dependencies

Deps	Name
	isaac_ros_common
	ament_copyright
	ament_flake8
	ament_pep257

System Dependencies

Name
python3-pytest

Dependant Packages

Name	Deps
isaac_ros_mission_client
isaac_ros_vda5050_client

Launch files

No launch files found

Messages

No message files found.

Services

No service files found

Plugins

No plugins found.

Recent questions tagged `isaac_ros_json_info_generator` at Robotics Stack Exchange

No version for distro melodic showing github. Known supported distros are highlighted in the buttons above.

isaac_ros_json_info_generator package from isaac_ros_mission_client repo

isaac_ros_cloud_control_interface isaac_ros_json_info_generator isaac_ros_mega_controller isaac_ros_mega_node_monitor isaac_ros_mission_client isaac_ros_mqtt_bridge isaac_ros_scene_recorder isaac_ros_scene_recorder_interface isaac_ros_vda5050_client isaac_ros_vda5050_client_bringup vda5050_action_handler vda5050_action_handler_plugins vda5050_msgs

ROS Distro
github

API Docs
Browse Code
Wiki

Package Summary

Version	4.2.0
License	Apache-2.0
Build type	AMENT_PYTHON
Use	RECOMMENDED

Repository Summary

Description	VDA5050-compatible mission controller
Checkout URI	https://github.com/nvidia-isaac-ros/isaac_ros_mission_client.git
VCS Type	git
VCS Version	main
Last Updated	2026-02-20
Dev Status	UNKNOWN
Released	UNRELEASED
Contributing	Help Wanted (-) Good First Issues (-) Pull Requests to Review (-)

Package Description

JSON Info Generator

Maintainers

Isaac ROS Maintainers

Authors

No additional authors.

Isaac ROS JSON Info Generator

Overview

The isaac_ros_json_info_generator package has the JsonInfoGeneratorNode that collects data/messages from an arbitrary number of topics (of any defined ROS message type). It converts the collected messages into a JSON string, stores that string in a std_msgs/String, and publishes that ROS 2 string to /info, where the mission client (i.e. isaac_ros_vda5050_client) will collect and then relay that information to the mission dispatcher. The node also subscribes to the topic /order_id (std_msgs/String) and stores that as the current order_id; if the new order_id value is different from the one stored, it will clear the messages it collected and start collecting messages again.

Launch Scripts

`isaac_ros_json_info_generator` Launch Script

This launch script under the launch directory brings up the JsonInfoGenerator node. This launch script uses a parameter YAML file under the config folder in json_info_generator_params.yaml. These are the following parameters that users can configure: | Parameter | Description | Default Value | | ————————- | ——————————————————————————————————————————————————————————————————- | —————- | | ros_subscriber_types | The message types for each topic the user wants the node to subscribe to | [] (empty array) | | ros_subscriber_topics | The topic names for each topic the user wants the node to subscribe to. Note: Each element in this parameter’s array corresponds to the element of the same index in ros_subscriber_types | [] (empty array) | | ros_pub_sub_queue | The queue value used for the publishers and subscribers generated in this node. | 10 | | messages_aggregated_count | if messages_aggregated is set to True, this value sets the number of messages to store for each topic before removing the old messages. The messages will be removed in a first-in-first-out order. | 10 | | update_period | How often the node should publish the messages collected (in seconds) | 1 |

Usage

After building this package, you can executable this node by running:

ros2 launch isaac_ros_json_info_generator isaac_ros_json_info_generator.launch.py

You can modify the parameter values by changing the values in config/json_info_generator_params.yaml.

CHANGELOG

No CHANGELOG found.

Package Dependencies

Deps	Name
	isaac_ros_common
	ament_copyright
	ament_flake8
	ament_pep257

System Dependencies

Name
python3-pytest

Dependant Packages

Name	Deps
isaac_ros_mission_client
isaac_ros_vda5050_client

Launch files

No launch files found

Messages

No message files found.

Services

No service files found

Plugins

No plugins found.

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isaac_ros_json_info_generator package from isaac_ros_mission_client repo

isaac_ros_cloud_control_interface isaac_ros_json_info_generator isaac_ros_mega_controller isaac_ros_mega_node_monitor isaac_ros_mission_client isaac_ros_mqtt_bridge isaac_ros_scene_recorder isaac_ros_scene_recorder_interface isaac_ros_vda5050_client isaac_ros_vda5050_client_bringup vda5050_action_handler vda5050_action_handler_plugins vda5050_msgs

ROS Distro
github

API Docs
Browse Code
Wiki

Package Summary

Version	4.2.0
License	Apache-2.0
Build type	AMENT_PYTHON
Use	RECOMMENDED

Repository Summary

Description	VDA5050-compatible mission controller
Checkout URI	https://github.com/nvidia-isaac-ros/isaac_ros_mission_client.git
VCS Type	git
VCS Version	main
Last Updated	2026-02-20
Dev Status	UNKNOWN
Released	UNRELEASED
Contributing	Help Wanted (-) Good First Issues (-) Pull Requests to Review (-)

Package Description

JSON Info Generator

Maintainers

Isaac ROS Maintainers

Authors

No additional authors.