Intro to Jinja
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Rewst uses the , aka "Jinja" templating language in text fields to enable more powerful processing of the data that exists in a workflow. Jinja is based on Python and shares much of its syntax and styling. The key difference is that expressions are encapsulated to separate themselves from plain text in these fields.
Jinja language is meant to be extensible. Within Rewst there are many that extend functionality, including an ever-growing list that Rewst adds to the platform. This means that if you search the web for help with Jinja, the answers you find may or may not be 100% applicable to the Rewst environment. When in doubt, you can always .
Variable expressions are encapsulated by double curly braces ({{ and }}) and will output the value of the variable or expression as they are evaluated.
{{ CTX.my_var }}
These are used for decision-making functions such as sets, if statements and for eaches. They are encapsulated by curly+percent signs ({% %})
These statements typically do not output anything.
Comments do nothing. In the Rewst Monaco editor, you can use the hotkey CTRL-/ to comment blocks of code.
{# COMMENT #}
By default, when Jinja begins a statement block, it preserves any whitespace characters (spaces, carriage returns, etc) before or after the block. In many cases, you will want to remove any spaces you did not explicitly intend to have, so the addition of the - character in the open and closing braces will remove the whitespace before or after the statement, respectively.
Below are some resources, external to Rewst, that can be used to assist during the use of Jinja.
Want more practice?
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Want to learn more? Search for Jinja in to find related courses.