%create%                Create Elasticsearch index with custom mapping.
%delete%                Delete Elasticsearch index.
%index%                 Index a data frame.
%search%                Execute query or search.
+.elastic_api           Define Elasticsearch aggregation on a secific
                        subset of documents.
aggs                    Define Elasticsearch aggregation.
check_http_code_throw_error
                        HTTP response error handling.
cleaned_field_names     Sanitise column names.
create_bulk_upload_file
                        Create Bulk API data file.
create_metadata         Create Bulk API metadata.
elastic                 elastic_rescource class constructor.
elastic_predicates      elasticsearchr predicate functions.
elastic_version         Elasticsearch version
elasticsearchr          elasticsearchr: a lightweight Elasticsearch
                        client for R.
extract_query_results   Elasticsearch HTTP response data extraction
                        functions.
from_size_search        Execute query with from-size search API.
index_bulk_dataframe    Index data frame with Elasticsearch Bulk API
mapping_default_simple
                        Simple Elasticsearch default mappings for
                        non-text-search analytics
mapping_fielddata_true
                        Elasticsearch 5.x default mappings enabling
                        fielddata for text fields
print.elastic_api       Pretty-print aggs and query JSON objects.
query                   Define Elasticsearch query.
scroll_search           Execute a query with the scroll-search API.
sort_on                 Define Elasticsearch query sort
valid_json              Valid JSON string predicate function
valid_url               Validate Elasticsearch URL.
