[[pipeline-processor]]
=== Pipeline processor
++++
<titleabbrev>Pipeline</titleabbrev>
++++

Executes another pipeline.

[[pipeline-options]]
.Pipeline Options
[options="header"]
|======
| Name             | Required  | Default  | Description
| `name`           | yes       | -        | The name of the pipeline to execute. Supports <<accessing-template-fields,template snippets>>.
include::common-options.asciidoc[]
|======

[source,js]
--------------------------------------------------
{
  "pipeline": {
    "name": "inner-pipeline"
  }
}
--------------------------------------------------
// NOTCONSOLE

The name of the current pipeline can be accessed from the `_ingest.pipeline` ingest metadata key.

An example of using this processor for nesting pipelines would be:

Define an inner pipeline:

[source,console]
--------------------------------------------------
PUT _ingest/pipeline/pipelineA
{
  "description" : "inner pipeline",
  "processors" : [
    {
      "set" : {
        "field": "inner_pipeline_set",
        "value": "inner"
      }
    }
  ]
}
--------------------------------------------------

Define another pipeline that uses the previously defined inner pipeline:

[source,console]
--------------------------------------------------
PUT _ingest/pipeline/pipelineB
{
  "description" : "outer pipeline",
  "processors" : [
    {
      "pipeline" : {
        "name": "pipelineA"
      }
    },
    {
      "set" : {
        "field": "outer_pipeline_set",
        "value": "outer"
      }
    }
  ]
}
--------------------------------------------------
// TEST[continued]

Now indexing a document while applying the outer pipeline will see the inner pipeline executed
from the outer pipeline:

[source,console]
--------------------------------------------------
PUT /my-index/_doc/1?pipeline=pipelineB
{
  "field": "value"
}
--------------------------------------------------
// TEST[continued]

Response from the index request:

[source,console-result]
--------------------------------------------------
{
  "_index": "my-index",
  "_type": "_doc",
  "_id": "1",
  "_version": 1,
  "result": "created",
  "_shards": {
    "total": 2,
    "successful": 1,
    "failed": 0
  },
  "_seq_no": 66,
  "_primary_term": 1,
}
--------------------------------------------------
// TESTRESPONSE[s/"_seq_no": \d+/"_seq_no" : $body._seq_no/ s/"_primary_term" : 1/"_primary_term" : $body._primary_term/]

Indexed document:

[source,js]
--------------------------------------------------
{
  "field": "value",
  "inner_pipeline_set": "inner",
  "outer_pipeline_set": "outer"
}
--------------------------------------------------
// NOTCONSOLE
