name : update-detector-model.rst **To update a detector model** The following ``update-detector-model`` example updates a 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/developerguide/iotevents-commands.html#api-iotevents-UpdateDetectorModel>`__ in the *AWS IoT Events Developer Guide**.