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Elastic Docs ›Fleet and Elastic Agent Guide [8.8] ›Define processors

Convert field type

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Convert field type

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The convert processor converts a field in the event to a different type, such as converting a string to an integer.

The supported types include: integer, long, float, double, string, boolean, and ip.

The ip type is effectively an alias for string, but with an added validation that the value is an IPv4 or IPv6 address.

Example

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  - convert:
      fields:
        - {from: "src_ip", to: "source.ip", type: "ip"}
        - {from: "src_port", to: "source.port", type: "integer"}
      ignore_missing: true
      fail_on_error: false

Configuration settings

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Elastic Agent processors execute before ingest pipelines, which means that your processor configurations cannot refer to fields that are created by ingest pipelines or Logstash. For more limitations, refer to What are some limitations of using processors?

Name Required Default Description

fields

Yes

List of fields to convert. The list must contain at least one item. Each item must have a from key that specifies the source field. The to key is optional and specifies where to assign the converted value. If to is omitted, the from field is updated in-place. The type key specifies the data type to convert the value to. If type is omitted, the processor copies or renames the field without any type conversion.

ignore_missing

No

false

Whether to ignore missing from keys. If true and the from key is not found in the event, the processor continues to the next field. If false, the processor returns an error and does not process the remaining fields.

fail_on_error

No

true

Whether to fail when a type conversion error occurs. If false, type conversion failures are ignored, and the processor continues to the next field.

tag

No

Identifier for this processor. Useful for debugging.

mode

No

copy

When both from and to are defined for a field, mode controls whether to copy or rename the field when the type conversion is successful.
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