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layout	title	parent	grand_parent	nav_order
default	key_value	Processors	Configuring Data Prepper	45

key_value

Overview

Takes in a field and parses it into key/value pairs.

Option	Required	Type	Description
source	No	String	The key in the event that is parsed. Default value is `message`.
destination	No	String	The key where to output the parsed source to. Doing this overwrites the value of the key if it exists. Default value is `parsed_message`
field_delimiter_regex	Conditionally	String	A regex specifying the delimiter between key/value pairs. Special regex characters such as `[` and `]` must be escaped using `\\`. This option cannot be defined at the same time as `field_split_characters`.
field_split_characters	Conditionally	String	A string of characters to split between key/value pairs. Special regex characters such as `[` and `]` must be escaped using `\\`. Default value is `&`. This option cannot be defined at the same time as `field_delimiter_regex`.
key_value_delimiter_regex	Conditionally	String	A regex specifying the delimiter between a key and a value. Special regex characters such as `[` and `]` must be escaped using `\\`. There is no default value. This option cannot be defined at the same time as `value_split_characters`.
value_split_characters	Conditionally	String	A string of characters to split between keys and values. Special regex characters such as `[` and `]` must be escaped using `\\`. Default value is `=`. This option cannot be defined at the same time as `key_value_delimiter_regex`.
non_match_value	No	String	When a key/value cannot be successfully split, the key/value is be placed in the key field and the specified value in the value field. Default value is `null`.
prefix	No	String	A prefix given to all keys. Default value is empty string.
delete_key_regex	No	String	A regex used to delete characters from the key. Special regex characters such as `[` and `]` must be escaped using `\\`. There is no default value.
delete_value_regex	No	String	A regex used to delete characters from the value. Special regex characters such as `[` and `]` must be escaped using `\\`. There is no default value.