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description
Parse, structure, and transform events

Transforms

Transforms are in the middle of the pipeline, sitting in-between sources and sinks. They transform events or the stream as a whole.

Name Description
add_fields Accepts log events and allows you to add one or more fields.
coercer Accepts log events and allows you to coerce event fields into fixed types.
field_filter Accepts log and metric events and allows you to filter events by a field's value.
grok_parser Accepts log events and allows you to parse a field value with Grok.
json_parser Accepts log events and allows you to parse a field value as JSON.
log_to_metric Accepts log events and allows you to convert logs into one or more metrics.
lua Accepts log events and allows you to transform events with a full embedded Lua engine.
regex_parser Accepts log events and allows you to parse a field's value with a Regular Expression.
remove_fields Accepts log and metric events and allows you to remove one or more event fields.
sampler Accepts log events and allows you to sample events with a configurable rate.
tokenizer Accepts log events and allows you to tokenize a field's value by splitting on white space, ignoring special wrapping characters, and zipping the tokens into ordered field names.

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