Simulate an ingest pipeline

The ingest part of every architecture is very sensitive, so the Elasticsearch team has created the possibility of simulating your pipelines without the need to store them in Elasticsearch.

The simulate pipeline API allows a user to test/improve and check functionalities of your pipeline without deployment in the Elasticsearch cluster.

Getting ready

You need an up-and-running Elasticsearch installation, as we described in the Downloading and installing Elasticsearch recipe in Chapter 2, Downloading and Setup.

To execute curl via the command-line, you need to install curl for your operative system.

How to do it...

To simulate an ingestion pipeline in Elasticsearch, we will perform the following steps:

1. We can need to execute a call passing both the pipeline and a sample subset of a document to test the pipeline against:

           curl -XPOST 'http://127.0.0.1:9200/_ingest/pipeline/_simulate' 
           -d '{
             "pipeline": {
               "description": "Add user john field...