opensearch_protobuf_search_request_quickstart_with_json_serialization.py

1from opensearch_protobufs.search_pb2 import SearchRequest
2from google.protobuf.json_format import MessageToJson
3
4def quickstart_example():
5    # Initialize a Protobuf SearchRequest object
6    # These classes are generated from the OpenSearch .proto definitions
7    search_request = SearchRequest()
8    
9    # Set fields on the message
10    # Note: Field names correspond to those defined in the OpenSearch protobuf spec
11    search_request.indices.append("my-index")
12    
13    # Convert to JSON for viewing or debugging (standard Protobuf utility)
14    json_output = MessageToJson(search_request)
15    
16    print("Protobuf SearchRequest as JSON:")
17    print(json_output)
18
19    # In a real scenario, you would pass the serialized bytes 
20    # to an OpenSearch client transport:
21    # binary_data = search_request.SerializeToString()
22    # client.transport.perform_request("POST", "/_search", body=binary_data, headers={"Content-Type": "application/x-protobuf"})
23
24if __name__ == "__main__":
25    quickstart_example()