**To update a detector model**
The following ``update-detector-model`` example updates the specified detector model. Detectors (instances) spawned by the previous version are deleted and then re-created as new inputs arrive. ::
aws iotevents update-detector-model \
--cli-input-json file://motorDetectorModel.update.json
Contents of ``motorDetectorModel.update.json``::
{
"detectorModelName": "motorDetectorModel",
"detectorModelDefinition": {
"states": [
{
"stateName": "Normal",
"onEnter": {
"events": [
{
"eventName": "init",
"condition": "true",
"actions": [
{
"setVariable": {
"variableName": "pressureThresholdBreached",
"value": "0"
}
}
]
}
]
},
"onInput": {
"transitionEvents": [
{
"eventName": "Overpressurized",
"condition": "$input.PressureInput.sensorData.pressure > 70",
"actions": [
{
"setVariable": {
"variableName": "pressureThresholdBreached",
"value": "$variable.pressureThresholdBreached + 3"
}
}
],
"nextState": "Dangerous"
}
]
}
},
{
"stateName": "Dangerous",
"onEnter": {
"events": [
{
"eventName": "Pressure Threshold Breached",
"condition": "$variable.pressureThresholdBreached > 1",
"actions": [
{
"sns": {
"targetArn": "arn:aws:sns:us-east-1:123456789012:underPressureAction"
}
}
]
}
]
},
"onInput": {
"events": [
{
"eventName": "Overpressurized",
"condition": "$input.PressureInput.sensorData.pressure > 70",
"actions": [
{
"setVariable": {
"variableName": "pressureThresholdBreached",
"value": "3"
}
}
]
},
{
"eventName": "Pressure Okay",
"condition": "$input.PressureInput.sensorData.pressure <= 70",
"actions": [
{
"setVariable": {
"variableName": "pressureThresholdBreached",
"value": "$variable.pressureThresholdBreached - 1"
}
}
]
}
],
"transitionEvents": [
{
"eventName": "BackToNormal",
"condition": "$input.PressureInput.sensorData.pressure <= 70 && $variable.pressureThresholdBreached <= 1",
"nextState": "Normal"
}
]
},
"onExit": {
"events": [
{
"eventName": "Normal Pressure Restored",
"condition": "true",
"actions": [
{
"sns": {
"targetArn": "arn:aws:sns:us-east-1:123456789012:pressureClearedAction"
}
}
]
}
]
}
}
],
"initialStateName": "Normal"
},
"roleArn": "arn:aws:iam::123456789012:role/IoTEventsRole"
}
Output::
{
"detectorModelConfiguration": {
"status": "ACTIVATING",
"lastUpdateTime": 1560799387.719,
"roleArn": "arn:aws:iam::123456789012:role/IoTEventsRole",
"creationTime": 1560799387.719,
"detectorModelArn": "arn:aws:iotevents:us-west-2:123456789012:detectorModel/motorDetectorModel",
"key": "motorid",
"detectorModelName": "motorDetectorModel",
"detectorModelVersion": "2"
}
}
For more information, see `UpdateDetectorModel <https://docs.aws.amazon.com/iotevents/latest/apireference/API_UpdateDetectorModel>`__ in the *AWS IoT Events API Reference*.