Jinja Transformation Service

Transforms a value using a jinja template.

The main purpose of this transformer is the use in the home assistant discovery. Therfore not all features of the home assistant templating are supported. Basically on Processing incoming data (opens new window)

Available variables

Variable	Description
value	The incoming value.
value_json	The incoming value parsed as JSON.

Examples

Basic Example

Given the value

{"Time":"2019-01-05T22:45:12","AM2301":{"Temperature":4.7,"Humidity":93.7},"TempUnit":"C"}

the template

{{value_json['AM2301'].Temperature}}

extracts the string 4.7.

Further Reading

• Wikipedia on [Jinja](https://en.wikipedia.org/wiki/Jinja_(template_engine) (opens new window).
• Home assistant discovery (opens new window).
• Home assistant templating (opens new window).

• Stable
• Latest

Caught a mistake or want to contribute to the documentation? Edit this page on GitHub (opens new window)