Checking Status of Ingest Pipelines

How, we can check status of ingest pipelines? like if anything hits them, they pass or fail?

You can specify on_failure for the pipeline or the processors, see Handling Failures in Pipelines | Elasticsearch Guide [7.10] | Elastic, set something to a new field like error.message in the document, then use exists query to check whether the error.message field exists or not in your index