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Convert Processor

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Convert Processor

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Converts a field in the currently ingested document to a different type, such as converting a string to an integer. If the field value is an array, all members will be converted.

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

Specifying boolean will set the field to true if its string value is equal to true (ignore case), to false if its string value is equal to false (ignore case), or it will throw an exception otherwise.

Specifying auto will attempt to convert the string-valued field into the closest non-string type. For example, a field whose value is "true" will be converted to its respective boolean type: true. Do note that float takes precedence of double in auto. A value of "242.15" will "automatically" be converted to 242.15 of type float. If a provided field cannot be appropriately converted, the Convert Processor will still process successfully and leave the field value as-is. In such a case, target_field will still be updated with the unconverted field value.

Table 36. Convert Options

Name	Required	Default	Description
`field`	yes	-	The field whose value is to be converted
`target_field`	no	`field`	The field to assign the converted value to, by default `field` is updated in-place
`type`	yes	-	The type to convert the existing value to
`ignore_missing`	no	`false`	If `true` and `field` does not exist or is `null`, the processor quietly exits without modifying the document
`if`	no	-	Conditionally execute this processor.
`on_failure`	no	-	Handle failures for this processor. See Handling Failures in Pipelines.
`ignore_failure`	no	`false`	Ignore failures for this processor. See Handling Failures in Pipelines.
`tag`	no	-	An identifier for this processor. Useful for debugging and metrics.

PUT _ingest/pipeline/my-pipeline-id
{
  "description": "converts the content of the id field to an integer",
  "processors" : [
    {
      "convert" : {
        "field" : "id",
        "type": "integer"
      }
    }
  ]
}

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