This document discusses combining Django REST framework with Elasticsearch to build powerful web APIs. It introduces Django REST framework as a flexible toolkit for building APIs and Elasticsearch as a fast search engine based on Lucene. It describes how to integrate Elasticsearch with Python and Django projects using libraries like elasticsearch-py, elasticsearch-dsl, haystack, and drf-haystack. An example is provided of building a searchable blog API with Django models, Elasticsearch mappings, and search views supporting queries by text and tags.