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.. _injecting-extra-content:
Injecting Extra Context
-----------------------
You can specify an ``extra_context`` dictionary that will override values from ``cookiecutter.json`` or ``.cookiecutterrc``:
.. code-block:: python
cookiecutter(
'cookiecutter-pypackage/',
extra_context={'project_name': 'TheGreatest'},
)
This works as command-line parameters as well:
.. code-block:: bash
cookiecutter --no-input cookiecutter-pypackage/ project_name=TheGreatest
You will also need to add these keys to the ``cookiecutter.json`` or ``.cookiecutterrc``.
Example: Injecting a Timestamp
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
If you have ``cookiecutter.json`` that has the following keys:
.. code-block:: JSON
{
"timestamp": "{{ cookiecutter.timestamp }}"
}
This Python script will dynamically inject a timestamp value as the project is
generated:
.. code-block:: python
from cookiecutter.main import cookiecutter
from datetime import datetime
cookiecutter(
'cookiecutter-django',
extra_context={'timestamp': datetime.utcnow().isoformat()}
)
How this works:
1. The script uses ``datetime`` to get the current UTC time in ISO format.
2. To generate the project, ``cookiecutter()`` is called, passing the timestamp
in as context via the ``extra_context``` dict.
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