updatenestedelasticsearch

from elasticsearch import Elasticsearch

# Connect to your Elasticsearch instance
es = Elasticsearch([{'host': 'localhost', 'port': 9200}])

# Index name and document ID for the example
index_name = 'your_index'
document_id = 'your_document_id'

# Specify the nested field and the updated value
nested_field = "nested_field_name"
updated_value = "new_value"

# Define the Painless script for the update
update_script = {
    "script": {
        "lang": "painless",
        "source": "ctx._source.nested_field_name = params.updated_value",
        "params": {
            "updated_value": updated_value
        }
    }
}

# Perform the update using the Update API and the Painless script
try:
    es.update(index=index_name, id=document_id, body=update_script)
    print("Nested object updated successfully!")
except Exception as e:
    print(f"Error updating nested object: {e}")