AWS IoT FleetWise will no longer be open to new customers as of April 30, 2026. Existing AWS IoT FleetWise customers can continue using the service. The [Guidance for Connected Mobility on AWS](https://aws.amazon.com/solutions/guidance/connected-mobility-on-aws/) provides guidance on how to develop and deploy modular services for connected mobility solutions that can be used to achieve equivalent capabilities as AWS IoT FleetWise.

# Create an AWS IoT FleetWise signal catalog
<a name="create-signal-catalog"></a>

You can use the [CreateSignalCatalog](https://docs.aws.amazon.com/iot-fleetwise/latest/APIReference/API_CreateSignalCatalog.html) API operation to create a signal catalog. The following example uses AWS CLI.

To create a signal catalog, run the following command.

Replace *signal-catalog-configuration* with the name of the .json file that contains the configuration.

```
aws iotfleetwise create-signal-catalog --cli-input-json file://signal-catalog-configuration.json
```

## Signal catalog configuration
<a name="signal-catalog-configuration"></a>
+ Replace *signal-catalog-name* with the name of the signal catalog that you're creating.
+ (Optional) Replace *description* with a description to help you identify the signal catalog.

For more information about how to configure branches, attributes, sensors, and actuators, see [Configure AWS IoT FleetWise signals](define-signal.md).

```
{
    "name": "signal-catalog-name",
    "description": "description",
    "nodes": [
  {
    "branch": {
      "fullyQualifiedName": "Types"
    }
  },
  {
    "struct": {
      "fullyQualifiedName": "Types.sensor_msgs_msg_CompressedImage"
    }
  },
  {
    "struct": {
      "fullyQualifiedName": "Types.std_msgs_Header"
    }
  },
  {
    "struct": {
      "fullyQualifiedName": "Types.builtin_interfaces_Time"
    }
  },
  {
    "property": {
      "fullyQualifiedName": "Types.builtin_interfaces_Time.sec",
      "dataType": "INT32",
      "dataEncoding": "TYPED"
    }
  },
  {
    "property": {
      "fullyQualifiedName": "Types.builtin_interfaces_Time.nanosec",
      "dataType": "UINT32",
      "dataEncoding": "TYPED"
    }
  },
  {
    "property": {
      "fullyQualifiedName": "Types.std_msgs_Header.stamp",
      "dataType": "STRUCT",
      "structFullyQualifiedName": "Types.builtin_interfaces_Time"
    }
  },
  {
    "property": {
      "fullyQualifiedName": "Types.std_msgs_Header.frame_id",
      "dataType": "STRING",
      "dataEncoding": "TYPED"
    }
  },
  {
    "property": {
      "fullyQualifiedName": "Types.sensor_msgs_msg_CompressedImage.header",
      "dataType": "STRUCT",
      "structFullyQualifiedName": "Types.std_msgs_Header"
    }
  },
  {
    "property": {
      "fullyQualifiedName": "Types.sensor_msgs_msg_CompressedImage.format",
      "dataType": "STRING",
      "dataEncoding": "TYPED"
    }
  },
  {
    "property": {
      "fullyQualifiedName": "Types.sensor_msgs_msg_CompressedImage.data",
      "dataType": "UINT8_ARRAY",
      "dataEncoding": "BINARY"
    }
  },
  {
    "branch": {
      "fullyQualifiedName": "Vehicle",
      "description": "Vehicle"
    }
  },
  {
    "branch": {
      "fullyQualifiedName": "Vehicle.Cameras"
    }
  },
  {
    "branch": {
      "fullyQualifiedName": "Vehicle.Cameras.Front"
    }
  },
  {
    "sensor": {
      "fullyQualifiedName": "Vehicle.Cameras.Front.Image",
      "dataType": "STRUCT",
      "structFullyQualifiedName": "Types.sensor_msgs_msg_CompressedImage"
    }
  },
  {
    "struct": {
      "fullyQualifiedName": "Types.std_msgs_msg_Float64"
    }
  },
  {
    "property": {
      "fullyQualifiedName": "Types.std_msgs_msg_Float64.data",
      "dataType": "DOUBLE",
      "dataEncoding": "TYPED"
    }
  },
  {
    "sensor": {
      "fullyQualifiedName": "Vehicle.Velocity",
      "dataType": "STRUCT",
      "structFullyQualifiedName": "Types.std_msgs_msg_Float64"
    }
  },
  {
    "struct": {
      "fullyQualifiedName": "Types.sensor_msgs_msg_RegionOfInterest"
    }
  },
  {
    "property": {
      "fullyQualifiedName": "Types.sensor_msgs_msg_RegionOfInterest.x_offset",
      "dataType": "UINT32",
      "dataEncoding": "TYPED"
    }
  },
  {
    "property": {
      "fullyQualifiedName": "Types.sensor_msgs_msg_RegionOfInterest.y_offset",
      "dataType": "UINT32",
      "dataEncoding": "TYPED"
    }
  },
  {
    "property": {
      "fullyQualifiedName": "Types.sensor_msgs_msg_RegionOfInterest.height",
      "dataType": "UINT32",
      "dataEncoding": "TYPED"
    }
  },
  {
    "property": {
      "fullyQualifiedName": "Types.sensor_msgs_msg_RegionOfInterest.width",
      "dataType": "UINT32",
      "dataEncoding": "TYPED"
    }
  },
  {
    "property": {
      "fullyQualifiedName": "Types.sensor_msgs_msg_RegionOfInterest.do_rectify",
      "dataType": "BOOLEAN",
      "dataEncoding": "TYPED"
    }
  },
  {
    "branch": {
      "fullyQualifiedName": "Vehicle.Perception"
    }
  },
  {
    "sensor": {
      "fullyQualifiedName": "Vehicle.Perception.Obstacle",
      "dataType": "STRUCT",
      "structFullyQualifiedName": "Types.sensor_msgs_msg_RegionOfInterest"
    }
  }
]
}
```

**Note**  
You can download a [demo script](https://raw.githubusercontent.com/aws/aws-iot-fleetwise-edge/main/tools/cloud/ros2-to-nodes.py) to convert ROS 2 messages to VSS .json files that are compatible with the signal catalog. For more information, see the [https://github.com/aws/aws-iot-fleetwise-edge/blob/main/docs/dev-guide/vision-system-data/vision-system-data-demo.ipynb](https://github.com/aws/aws-iot-fleetwise-edge/blob/main/docs/dev-guide/vision-system-data/vision-system-data-demo.ipynb).  
Vision system data is in preview release and is subject to change.

If you [enabled encryption](key-management.md) using a customer managed AWS KMS key, include the following policy statement so that your role can invoke the `CreateSignalCatalog` API operation.

------
#### [ JSON ]

****  

```
{
    "Version":"2012-10-17",		 	 	 
    "Statement": [
        {
            "Effect": "Allow",
            "Action": [
                "kms:GenerateDataKey*",
                "kms:Decrypt"
            ],
            "Resource": [
                "arn:aws:kms:us-east-1:111122223333:key/KMS_KEY_ID"
            ]
        }
    ]
}
```

------