Append processor
Appends one or more values to an existing array if the field already exists and it is an array. Converts a scalar to an array and appends one or more values to it if the field exists and it is a scalar. Creates an array containing the provided values if the field doesn’t exist. Accepts a single value or an array of values.
| Name | Required | Default | Description |
|---|---|---|---|
field |
yes | - | The field to be appended to. Supports template snippets. |
value |
yes | - | The value to be appended. Supports template snippets. |
allow_duplicates |
no | true | If false, the processor does not appendvalues already present in the field. |
media_type |
no | application/json |
The media type for encoding value. Applies only when value is atemplate snippet. Must be one of application/json, text/plain, orapplication/x-www-form-urlencoded. |
description |
no | - | Description of the processor. Useful for describing the purpose of the processor or its configuration. |
if |
no | - | Conditionally execute the processor. See Conditionally run a processor. |
ignore_failure |
no | false |
Ignore failures for the processor. See Handling pipeline failures. |
on_failure |
no | - | Handle failures for the processor. See Handling pipeline failures. |
tag |
no | - | Identifier for the processor. Useful for debugging and metrics. |
{
"append": {
"field": "tags",
"value": ["production", "{{{app}}}", "{{{owner}}}"]
}
}