[ros-users] [Discourse.ros.org] [Next Generation ROS] Optional Fields in Message

[Daniel Stonier]

As for a direct use case, we ran into one recently when wanting to write a ROStful (ROS-REST conversion interface) client. As a client to a REST server api, it may need to set outgoing optional fields and parse incoming optional fields. A fixed ros message is not rich enough to transmit/receive this kind of information.






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