to_json¶

Collection Note

This module is part of the ansible.builtin collection. To install the collection, use:

ansible-galaxy collection install ansible.builtin

Added in version historical.

Synopsis¶

Converts an Ansible variable into a JSON string representation.
This filter functions as a wrapper to the Python C(json.dumps) function.
Ansible internally auto-converts JSON strings into variable structures so this plugin is used to force it into a JSON string.

Parameters¶

Parameter	Defaults / Choices	Comments
_input raw required		A variable or expression that returns a data structure.
allow_nan bool	Default: True	When V(False), strict adherence to float value limits of the JSON specifications, so C(nan), C(inf) and C(-inf) values will produce errors. When V(True), JavaScript equivalents will be used (C(NaN), C(Infinity), C(-Infinity)).
check_circular bool	Default: True	Controls the usage of the internal circular reference detection, if off can result in overflow errors.
ensure_ascii bool	Default: True	Escapes all non ASCII characters.
indent integer		Number of spaces to indent Python structures, mainly used for display to humans.
preprocess_unsafe bool	Default: True	Toggle to represent unsafe values directly in JSON or create a unsafe object in JSON. Version Added: 2.9
separators tuple	Default: (', ', ': ')	The C(item) and C(key) separator to be used in the serialized output, default may change depending on O(indent) and Python version.
skipkeys bool		If V(True), keys that are not basic Python types will be skipped.
sort_keys bool		Affects sorting of dictionary keys.
vault_to_text bool	Default: True	Toggle to either unvault a vault or create the JSON version of a vaulted object. Version Added: 2.9

Notes¶

Note

Both O(vault_to_text) and O(preprocess_unsafe) defaulted to V(False) between Ansible 2.9 and 2.12.
These parameters to C(json.dumps) will be ignored, as they are overridden internally: I(cls), I(default)

Examples¶

# dump variable in a template to create a JSON document
{{ docker_config | to_json }}

# same as above but 'prettier' (equivalent to to_nice_json filter)
{{ docker_config | to_json(indent=4, sort_keys=True) }}

Return Values¶

Key	Data Type	Description	Returned
_value	string	The JSON serialized string representing the variable structure inputted.

Authors¶

Core Team