###### tags: `DT`
# Ditto

https://github.com/eclipse-ditto/ditto

Document
https://www.eclipse.org/ditto/intro-overview.html

## Docker
https://docs.docker.com/engine/install/ubuntu/

## Docker-compose
sudo apt install docker-compose

## Build up with docker
cd deployment/docker/
sudo docker-compose up -d

## Ditto UI
http://localhost:8080/ui/

## Create DT
Tutorial:
https://www.eclipse.org/ditto/intro-hello-world.html

### Create new DT

curl -u ditto:ditto -X PUT -H 'Content-Type: application/json' -d '{
"definition": "digitaltwin:DigitaltwinExample:1.0.0",
"attributes": {
"Module": "123456"
},
"features": {
"transmission": {
"properties": {
"rotational_speed": 100,
"mode": "eco"
}
},
"environment": {
"properties": {
"temperature": 20.8,
"humidity": 73,
"barometricPressure": 970.7,
"location": {
"longitude": 47.682170,
"latitude": 9.386372
},
"altitude": 399
}
}
}
}' 'http://localhost:8080/api/2/things/org.eclipse.ditto:wind_turbine'

### Querying an existing Thing
curl -u ditto:ditto -X GET 'http://localhost:8080/api/2/things/org.eclipse.ditto:wind_turbine'

### Querying one specific state value
Get value of rotational_speed

curl -u ditto:ditto -X GET 'http://localhost:8080/api/2/things/org.eclipse.ditto:wind_turbine/features/transmission/properties/rotational_speed'

Get value of temperature

curl -u ditto:ditto -X GET 'http://localhost:8080/api/2/things/org.eclipse.ditto:wind_turbine/features/environment/properties/temperature'

### Updating one specific state value
Change rotational_speed to 200

curl -u ditto:ditto -X PUT -H 'Content-Type: application/json' -d '200' 'http://localhost:8080/api/2/things/org.eclipse.ditto:wind_turbine/features/transmission/properties/rotational_speed'

Change temperature to 30

curl -u ditto:ditto -X PUT -H 'Content-Type: application/json' -d '30' 'http://localhost:8080/api/2/things/org.eclipse.ditto:wind_turbine/features/environment/properties/temperature'