JSONata

There are three functions added for JSONata expressions within the Home Assistant nodes.

• $entity() returns the entity that triggered the node
• $prevEntity() returns the previous state entity if the node is an event node
• $entities() returns all entities in the cache
• $entities(entity_id) returns a single entity from cache matching passed in entity_id

When JSONata appears in the conditional dropdown it expects the expression to return a boolean, true or false.

When it is chosen with a conditional, not JSONata it will return a value of the evaluated expression that will be checked against the conditional chosen.

Examples

• Increase lights brightness with remote
• Notification of lights left on when leaving home
• OR conditional for the events: state node

Also see:

• https://docs.jsonata.org (opens new window)
• http://try.jsonata.org (opens new window)