# GetTrajectoryStates.srv

## Overview

`GetTrajectoryStates.srv` retrieves the current state of all trajectories known to the Cartographer node.

## Request

This service has an empty request.

## Response

| Field | Type | Description |
| --- | --- | --- |
| `status` | `cartographer_ros_msgs/StatusResponse` | The outcome of the request; check `code` against `StatusCode.OK`. |
| `trajectory_states` | `cartographer_ros_msgs/TrajectoryStates` | The trajectory ID/state mapping for all known trajectories. |

## Usage

- Callers use the returned `trajectory_states` to discover trajectory IDs and their states (ACTIVE, FINISHED, FROZEN, or DELETED).