Jinja2JS

Usage

python compile_to_js.py <path to jinja2 template>

The above command will yield a JavaScript function which, when executed with a JSON blob containing values that correspond to the values requested by the template as the first argument, will yield a rendered version of the template.

Adding the --attributes flag to the command will return a list of values which the template expects to be provided in the JSON. This list may be more useful if piped through | sort | uniq.

Unsupported Jinja Features

As of the latest version, the following features are unimplemented or not supported:

• Template inheritance (the content of each declared block is returned).
• Imports
• Includes
• Filters and filter blocks
• for loops
• Macros
• Call blocks
• Inline ``dict``s, ``tuple``s, and ``list``s.
• Some slice features (step)
• Tests

Considerations

• Content that it output outside of a block is placed in the __default__ block.
• Filters are wrapped in the j2filter("node", "filter_name") function. Evaluating "node" as its corresponding object in the context and applying the filter environment.filters.get("filter_name") will yield the expected result.