curl

$ curl http://localhost:3000/api/entities/dataSources \
-H "Content-Type: application/vnd.gooddata.api+json" \
-H "Accept: application/vnd.gooddata.api+json" \
-H "Authorization: Bearer YWRtaW46Ym9vdHN0cmFwOmFkbWluMTIz" \
-X POST \
-d '{
   "data": {
       "attributes": {
           "name":"iot-online-shop-postgres",
           "url": "jdbc:postgresql://postgres:5432/iot-online-shop-production",
           "schema": "public",
           "type": "POSTGRESQL",
           "username": "admin",
           "password": "admin"
       },
       "id": "iot-online-shop-postgres",
       "type": "dataSource"
   }
}' | jq .