diff --git a/eris.py b/eris.py
index fb3330b..a3d37cf 100644
--- a/eris.py
+++ b/eris.py
@@ -1,18 +1,21 @@
 #!/usr/bin/env python
 # Elasticsearch Recon Ingestion Scripts (ERIS) - Developed by Acidvegas (https://git.acid.vegas/eris)
+# eris.py
 
+import asyncio
 import argparse
 import logging
 import os
 import stat
-import time
 import sys
 
 sys.dont_write_bytecode = True
 
 try:
-    from elasticsearch import Elasticsearch, helpers
+    # This is commented out because there is a bug with the elasticsearch library that requires a patch (see initialize() method below)
+    #from elasticsearch import AsyncElasticsearch 
     from elasticsearch.exceptions import NotFoundError
+    from elasticsearch.helpers import async_streaming_bulk
 except ImportError:
     raise ImportError('Missing required \'elasticsearch\' library. (pip install elasticsearch)')
 
@@ -28,48 +31,51 @@ class ElasticIndexer:
         :param args: Parsed arguments from argparse
         '''
 
-        self.chunk_max = args.chunk_max * 1024 * 1024 # MB
+        self.chunk_max  = args.chunk_max * 1024 * 1024 # MB
         self.chunk_size = args.chunk_size
-        self.chunk_threads = args.chunk_threads
-        self.dry_run = args.dry_run
+        self.es = None
         self.es_index = args.index
 
-        if not args.dry_run:
-            es_config = {
-                'hosts': [f'{args.host}:{args.port}'],
-                'verify_certs': args.self_signed,
-                'ssl_show_warn': args.self_signed,
-                'request_timeout': args.timeout,
-                'max_retries': args.retries,
-                'retry_on_timeout': True,
-                'sniff_on_start': False,
-                'sniff_on_node_failure': True,
-                'min_delay_between_sniffing': 60 # Add config option for this?
-            }
+        self.es_config = {
+            'hosts': [f'{args.host}:{args.port}'],
+            'verify_certs': args.self_signed,
+            'ssl_show_warn': args.self_signed,
+            'request_timeout': args.timeout,
+            'max_retries': args.retries,
+            'retry_on_timeout': True,
+            'sniff_on_start': True, # Is this problematic? 
+            'sniff_on_node_failure': True,
+            'min_delay_between_sniffing': 60 # Add config option for this?
+        }
 
-            if args.api_key:
-                es_config['headers'] = {'Authorization': f'ApiKey {args.api_key}'}
-            else:
-                es_config['basic_auth'] = (args.user, args.password)
-                
-            # Patching the Elasticsearch client to fix a bug with sniffing (https://github.com/elastic/elasticsearch-py/issues/2005#issuecomment-1645641960)
-            import sniff_patch
-            self.es = sniff_patch.init_elasticsearch(**es_config)
+        if args.api_key:
+            self.es_config['api_key'] = (args.api_key, '') # Verify this is correct
+        else:
+            self.es_config['basic_auth'] = (args.user, args.password)
+            
+        
+    async def initialize(self):
+        '''Initialize the Elasticsearch client.'''
 
-            # Remove the above and uncomment the below if the bug is fixed in the Elasticsearch client:
-            #self.es = Elasticsearch(**es_config)
+        # Patching the Elasticsearch client to fix a bug with sniffing (https://github.com/elastic/elasticsearch-py/issues/2005#issuecomment-1645641960)
+        import sniff_patch
+        self.es = sniff_patch.init_elasticsearch(**self.es_config)
+
+        # Remove the above and uncomment the below if the bug is fixed in the Elasticsearch client:
+        #self.es = AsyncElasticsearch(**es_config)
 
 
-    def create_index(self, map_body: dict, pipeline: str = '', replicas: int = 1, shards: int = 1, ):
+    async def create_index(self, map_body: dict, pipeline: str = '', replicas: int = 1, shards: int = 1):
         '''
         Create the Elasticsearch index with the defined mapping.
         
-        :param pipline: Name of the ingest pipeline to use for the index
+        :param map_body: Mapping for the index
+        :param pipeline: Name of the ingest pipeline to use for the index
         :param replicas: Number of replicas for the index
         :param shards: Number of shards for the index
         '''
 
-        if self.es.indices.exists(index=self.es_index):
+        if await self.es.indices.exists(index=self.es_index):
             logging.info(f'Index \'{self.es_index}\' already exists.')
             return
 
@@ -82,13 +88,13 @@ class ElasticIndexer:
 
         if pipeline:
             try:
-                self.es.ingest.get_pipeline(id=pipeline)
+                await self.es.ingest.get_pipeline(id=pipeline)
                 logging.info(f'Using ingest pipeline \'{pipeline}\' for index \'{self.es_index}\'')
                 mapping['settings']['index.default_pipeline'] = pipeline
             except NotFoundError:
                 raise ValueError(f'Ingest pipeline \'{pipeline}\' does not exist.')
 
-        response = self.es.indices.create(index=self.es_index, body=mapping)
+        response = await self.es.indices.create(index=self.es_index, body=mapping)
 
         if response.get('acknowledged') and response.get('shards_acknowledged'):
             logging.info(f'Index \'{self.es_index}\' successfully created.')
@@ -96,106 +102,62 @@ class ElasticIndexer:
             raise Exception(f'Failed to create index. ({response})')
 
 
-    def get_cluster_health(self) -> dict:
+    async def get_cluster_health(self) -> dict:
         '''Get the health of the Elasticsearch cluster.'''
 
-        return self.es.cluster.health()
+        return await self.es.cluster.health()
     
 
-    def get_cluster_size(self) -> int:
+    async def get_cluster_size(self) -> int:
         '''Get the number of nodes in the Elasticsearch cluster.'''
 
-        cluster_stats = self.es.cluster.stats()
+        cluster_stats = await self.es.cluster.stats()
         number_of_nodes = cluster_stats['nodes']['count']['total']
 
         return number_of_nodes
 
 
-    def bulk_index(self, documents: list, file_path: str, count: int):
+    async def process_data(self, file_path: str, data_generator: callable):
         '''
-        Index a batch of documents to Elasticsearch.
-        
-        :param documents: List of documents to index
-        :param file_path: Path to the file being indexed
-        :param count: Total number of records processed
-        '''
-
-        remaining_documents = documents
-
-        parallel_bulk_config = {
-            'client': self.es,
-            'chunk_size': self.chunk_size,
-            'max_chunk_bytes': self.chunk_max,
-            'thread_count': self.chunk_threads,
-            'queue_size': 2 # Add config option for this?
-        }
-
-        while remaining_documents:
-            failed_documents = []
-
-            try:
-                for success, response in helpers.parallel_bulk(actions=remaining_documents, **parallel_bulk_config):
-                    if not success:
-                        failed_documents.append(response)
-
-                if not failed_documents:
-                    ingested = parallel_bulk_config['chunk_size'] * parallel_bulk_config['thread_count']
-                    logging.info(f'Successfully indexed {ingested:,} ({count:,} processed) records to {self.es_index} from {file_path}')
-                    break
-
-                else:
-                    logging.warning(f'Failed to index {len(failed_documents):,} failed documents! Retrying...')
-                    remaining_documents = failed_documents
-            except Exception as e:
-                logging.error(f'Failed to index documents! ({e})')
-                time.sleep(30) # Should we add a config option for this?
-
-
-    def process_file(self, file_path: str, batch_size: int, ingest_function: callable):
-        '''
-        Read and index records in batches to Elasticsearch.
+        Index records in chunks to Elasticsearch.
 
         :param file_path: Path to the file
-        :param batch_size: Number of records to index per batch
-        :param ingest_function: Function to process the file
+        :param index_name: Name of the index
+        :param data_generator: Generator for the records to index
         '''
 
         count = 0
-        records = []
+        total = 0
+        
+        async for ok, result in async_streaming_bulk(self.es, actions=data_generator(file_path), chunk_size=self.chunk_size, max_chunk_bytes=self.chunk_max):
+            action, result = result.popitem()
 
-        for processed in ingest_function(file_path):
-
-            if not processed:
-                break
-
-            if self.dry_run:
-                print(processed)
+            if not ok:
+                logging.error(f'Failed to index document ({result["_id"]}) to {self.es_index} from {file_path} ({result})')
+                input('Press Enter to continue...') # Debugging (will possibly remove this since we have retries enabled)
                 continue
 
-            struct = {'_index': self.es_index, '_source': processed}
-            records.append(struct)
             count += 1
-            
-            if len(records) >= batch_size:
-                self.bulk_index(records, file_path, count)
-                records = []
+            total += 1
 
-        if records:
-            self.bulk_index(records, file_path, count)
+            if count == self.chunk_size:
+                logging.info(f'Successfully indexed {self.chunk_size:,} ({total:,} processed) records to {self.es_index} from {file_path}')
+                count = 0
+
+        logging.info(f'Finished indexing {total:,} records to {self.es_index} from {file_path}')
 
 
-def main():
+async def main():
     '''Main function when running this script directly.'''
 
     parser = argparse.ArgumentParser(description='Index data into Elasticsearch.')
     
     # General arguments
     parser.add_argument('input_path', help='Path to the input file or directory') # Required
-    parser.add_argument('--dry-run', action='store_true', help='Dry run (do not index records to Elasticsearch)')
     parser.add_argument('--watch', action='store_true', help='Create or watch a FIFO for real-time indexing')
     
     # Elasticsearch arguments
-    parser.add_argument('--host', default='localhost', help='Elasticsearch host')
+    parser.add_argument('--host', default='http://localhost/', help='Elasticsearch host')
     parser.add_argument('--port', type=int, default=9200, help='Elasticsearch port')
     parser.add_argument('--user', default='elastic', help='Elasticsearch username')
     parser.add_argument('--password', default=os.getenv('ES_PASSWORD'), help='Elasticsearch password (if not provided, check environment variable ES_PASSWORD)')
@@ -206,16 +168,16 @@ def main():
     parser.add_argument('--index', help='Elasticsearch index name')
     parser.add_argument('--pipeline', help='Use an ingest pipeline for the index')
     parser.add_argument('--replicas', type=int, default=1, help='Number of replicas for the index')
-    parser.add_argument('--shards', type=int, default=3, help='Number of shards for the index')
+    parser.add_argument('--shards', type=int, default=1, help='Number of shards for the index')
     
     # Performance arguments
-    parser.add_argument('--chunk-max', type=int, default=10, help='Maximum size in MB of a chunk')
     parser.add_argument('--chunk-size', type=int, default=50000, help='Number of records to index in a chunk')
-    parser.add_argument('--chunk-threads', type=int, default=3, help='Number of threads to use when indexing in chunks')
-    parser.add_argument('--retries', type=int, default=60, help='Number of times to retry indexing a chunk before failing')
-    parser.add_argument('--timeout', type=int, default=30, help='Number of seconds to wait before retrying a chunk')
+    parser.add_argument('--chunk-max', type=int, default=100, help='Maximum size of a chunk in bytes')
+    parser.add_argument('--retries', type=int, default=100, help='Number of times to retry indexing a chunk before failing')
+    parser.add_argument('--timeout', type=int, default=60, help='Number of seconds to wait before retrying a chunk')
 
     # Ingestion arguments
+    parser.add_argument('--cert', action='store_true', help='Index Certstream records')
     parser.add_argument('--httpx', action='store_true', help='Index Httpx records')
     parser.add_argument('--masscan', action='store_true', help='Index Masscan records')
     parser.add_argument('--massdns', action='store_true', help='Index Massdns records')
@@ -232,7 +194,10 @@ def main():
         raise FileNotFoundError(f'Input path {args.input_path} does not exist or is not a file or directory')
 
     edx = ElasticIndexer(args)
+    await edx.initialize() # Initialize the Elasticsearch client asyncronously
 
+    if args.cert:
+        from ingestors import ingest_certs   as ingestor
     if args.httpx:
         from ingestors import ingest_httpx   as ingestor
     elif args.masscan:
@@ -241,32 +206,28 @@ def main():
         from ingestors import ingest_massdns as ingestor
     elif args.zone:
         from ingestors import ingest_zone    as ingestor
-
-    batch_size = 0
     
-    if not args.dry_run:
-        print(edx.get_cluster_health())
+    health = await edx.get_cluster_health()
+    print(health)
 
-        time.sleep(3) # Delay to allow time for sniffing to complete
-        
-        nodes = edx.get_cluster_size()
-        logging.info(f'Connected to {nodes:,} Elasticsearch node(s)')
+    await asyncio.sleep(5) # Delay to allow time for sniffing to complete
+    
+    nodes = await edx.get_cluster_size()
+    logging.info(f'Connected to {nodes:,} Elasticsearch node(s)')
 
-        if not edx.es_index:
-            edx.es_index = ingestor.default_index
+    if not edx.es_index:
+        edx.es_index = ingestor.default_index
 
-        map_body = ingestor.construct_map()
-        edx.create_index(map_body, args.pipeline, args.replicas, args.shards)
-
-        batch_size = int(nodes * (args.chunk_size * args.chunk_threads))
+    map_body = ingestor.construct_map()
+    await edx.create_index(map_body, args.pipeline, args.replicas, args.shards)
     
     if os.path.isfile(args.input_path):
         logging.info(f'Processing file: {args.input_path}')
-        edx.process_file(args.input_path, batch_size, ingestor.process_file)
+        await edx.process_data(args.input_path, ingestor.process_data)
 
     elif stat.S_ISFIFO(os.stat(args.input_path).st_mode):
         logging.info(f'Watching FIFO: {args.input_path}')
-        edx.process_file(args.input_path, batch_size, ingestor.process_file)
+        await edx.process_data(args.input_path, ingestor.process_data)
 
     elif os.path.isdir(args.input_path):
         count = 1
@@ -276,7 +237,7 @@ def main():
             file_path = os.path.join(args.input_path, file)
             if os.path.isfile(file_path):
                 logging.info(f'[{count:,}/{total:,}] Processing file: {file_path}')
-                edx.process_file(file_path, batch_size, ingestor.process_file)
+                await edx.process_data(file_path, ingestor.process_data)
                 count += 1
             else:
                 logging.warning(f'[{count:,}/{total:,}] Skipping non-file: {file_path}')
@@ -284,4 +245,4 @@ def main():
 
 
 if __name__ == '__main__':
-    main()
\ No newline at end of file
+    asyncio.run(main())
\ No newline at end of file
diff --git a/async_dev/ingestors/ingest_certs.py b/ingestors/ingest_certs.py
similarity index 100%
rename from async_dev/ingestors/ingest_certs.py
rename to ingestors/ingest_certs.py
diff --git a/ingestors/ingest_httpx.py b/ingestors/ingest_httpx.py
index 4ea14bc..93d8b58 100644
--- a/ingestors/ingest_httpx.py
+++ b/ingestors/ingest_httpx.py
@@ -4,6 +4,11 @@
 
 import json
 
+try:
+    import aiofiles
+except ImportError:
+    raise ImportError('Missing required \'aiofiles\' library. (pip install aiofiles)')
+
 default_index = 'httpx-logs'
 
 def construct_map() -> dict:
@@ -22,15 +27,15 @@ def construct_map() -> dict:
     return mapping
 
 
-def process_file(file_path: str):
+async def process_data(file_path: str):
     '''
     Read and process HTTPX records from the log file.
 
     :param file_path: Path to the HTTPX log file
     '''
 
-    with open(file_path, 'r') as file:
-        for line in file:
+    async with aiofiles.open(file_path, mode='r') as input_file:
+        async for line in input_file:
             line = line.strip()
 
             if not line:
@@ -43,7 +48,7 @@ def process_file(file_path: str):
 
             del record['failed'], record['knowledgebase'], record['time']
 
-            yield record
+            yield {'_index': default_index, '_source': record}
 
     return None # EOF
 
diff --git a/ingestors/ingest_masscan.py b/ingestors/ingest_masscan.py
index 96f1802..5eb0660 100644
--- a/ingestors/ingest_masscan.py
+++ b/ingestors/ingest_masscan.py
@@ -19,6 +19,11 @@ import logging
 import re
 import time
 
+try:
+    import aiofiles
+except ImportError:
+    raise ImportError('Missing required \'aiofiles\' library. (pip install aiofiles)')
+
 default_index = 'masscan-logs'
 
 def construct_map() -> dict:
@@ -54,15 +59,15 @@ def construct_map() -> dict:
     return mapping
 
 
-def process_file(file_path: str):
+async def process_data(file_path: str):
     '''
     Read and process Masscan records from the log file.
 
     :param file_path: Path to the Masscan log file
     '''
 
-    with open(file_path, 'r') as file:
-        for line in file:
+    async with aiofiles.open(file_path, mode='r') as input_file:
+        async for line in input_file:
             line = line.strip()
 
             if not line or not line.startswith('{'):
@@ -74,22 +79,29 @@ def process_file(file_path: str):
             try:
                 record = json.loads(line)
             except json.decoder.JSONDecodeError:
+                # In rare cases, the JSON record may be incomplete or malformed:
+                #   {   "ip": "51.161.12.223",   "timestamp": "1707628302", "ports": [ {"port": 22, "proto": "tcp", "service": {"name": "ssh", "banner":
+                #   {   "ip": "83.66.211.246",   "timestamp": "1706557002"
                 logging.error(f'Failed to parse JSON record! ({line})')
-                input('Press Enter to continue...') # Debugging
+                input('Press Enter to continue...') # Pause for review & debugging (Will remove pausing in production, still investigating the cause of this issue.)
                 continue
 
+            if len(record['ports']) > 1:
+                logging.warning(f'Multiple ports found for record! ({record})')
+                input('Press Enter to continue...') # Pause for review (Will remove pausing in production, still investigating if you ever seen more than one port in a record.)
+
             for port_info in record['ports']:
                 struct = {
-                    'ip': record['ip'],
-                    'port': port_info['port'],
-                    'proto': port_info['proto'],
-                    'seen': time.strftime('%Y-%m-%dT%H:%M:%SZ', time.gmtime(int(record['timestamp']))),
+                    'ip'    : record['ip'],
+                    'port'  : port_info['port'],
+                    'proto' : port_info['proto'],
+                    'seen'  : time.strftime('%Y-%m-%dT%H:%M:%SZ', time.gmtime(int(record['timestamp']))),
                 }
 
                 if 'service' in port_info:
                     if 'name' in port_info['service']:
-                        if port_info['service']['name'] != 'unknown':
-                            struct['service'] = port_info['service']['name']
+                        if (service_name := port_info['service']['name']) not in ('unknown',''):
+                            struct['service'] = service_name
 
                     if 'banner' in port_info['service']:
                         banner = ' '.join(port_info['service']['banner'].split()) # Remove extra whitespace
@@ -100,7 +112,7 @@ def process_file(file_path: str):
                             else:
                                 struct['banner'] = banner
 
-                yield struct
+                yield {'_index': default_index, '_source': struct}
  
     return None # EOF
 
@@ -131,6 +143,6 @@ Will be indexed as:
     "service": "ssh",
     "banner": "SSH-2.0-OpenSSH_8.9p1 Ubuntu-3ubuntu0.4",
     "seen": "2021-10-08T02:04:28Z",
-    "ref_id": "?sKfOvsC4M4a2W8PaC4zF?" # TCP RST Payload (Do we need this?)
+    "ref_id": "?sKfOvsC4M4a2W8PaC4zF?" # TCP RST Payload, Might be useful..
 }
 '''
\ No newline at end of file
diff --git a/ingestors/ingest_massdns.py b/ingestors/ingest_massdns.py
index fd8f3b7..5c8e121 100644
--- a/ingestors/ingest_massdns.py
+++ b/ingestors/ingest_massdns.py
@@ -4,6 +4,11 @@
 
 import time
 
+try:
+    import aiofiles
+except ImportError:
+    raise ImportError('Missing required \'aiofiles\' library. (pip install aiofiles)')
+
 default_index = 'ptr-records'
 
 def construct_map() -> dict:
@@ -25,15 +30,15 @@ def construct_map() -> dict:
     return mapping
 
 
-def process_file(file_path: str):
+async def process_data(file_path: str):
     '''
     Read and process Massdns records from the log file.
 
     :param file_path: Path to the Massdns log file
     '''
 
-    with open(file_path, 'r') as file:
-        for line in file:
+    async with aiofiles.open(file_path, mode='r') as input_file:
+        async for line in input_file:
             line = line.strip()
 
             if not line:
@@ -65,7 +70,7 @@ def process_file(file_path: str):
                 'seen': time.strftime('%Y-%m-%dT%H:%M:%SZ', time.gmtime())
             }
 
-            yield struct
+            yield {'_index': default_index, '_source': struct}
     
     return None # EOF
 
diff --git a/ingestors/ingest_zone.py b/ingestors/ingest_zone.py
index 5c9d358..7cb552d 100644
--- a/ingestors/ingest_zone.py
+++ b/ingestors/ingest_zone.py
@@ -4,6 +4,11 @@
 
 import time
 
+try:
+    import aiofiles
+except ImportError:
+    raise ImportError('Missing required \'aiofiles\' library. (pip install aiofiles)')
+
 default_index = 'dns-zones'
 record_types = ('a','aaaa','caa','cdnskey','cds','cname','dnskey','ds','mx','naptr','ns','nsec','nsec3','nsec3param','ptr','rrsig','rp','sshfp','soa','srv','txt','type65534')
 
@@ -42,7 +47,7 @@ def construct_map() -> dict:
     return mapping
 
 
-def process_file(file_path: str):
+async def process_data(file_path: str):
     '''
     Read and process zone file records.
 
@@ -52,8 +57,8 @@ def process_file(file_path: str):
     domain_records = {}
     last_domain = None
 
-    with open(file_path, 'r') as file:
-        for line in file:
+    async with aiofiles.open(file_path, mode='r') as input_file:
+        async for line in input_file:
             line = line.strip()
 
             if not line or line.startswith(';'):
@@ -88,11 +93,11 @@ def process_file(file_path: str):
 
             if domain != last_domain:
                 if last_domain:
-                    source = {'domain': last_domain, 'records': domain_records[last_domain], 'seen': time.strftime('%Y-%m-%dT%H:%M:%SZ', time.gmtime())}
+                    struct = {'domain': last_domain, 'records': domain_records[last_domain], 'seen': time.strftime('%Y-%m-%dT%H:%M:%SZ', time.gmtime())}
                     
                     del domain_records[last_domain]
 
-                    yield source
+                    yield {'_index': default_index, '_source': struct}
 
                 last_domain = domain
 
diff --git a/async_dev/eris.py b/old/eris.py
similarity index 50%
rename from async_dev/eris.py
rename to old/eris.py
index a3d37cf..fb3330b 100644
--- a/async_dev/eris.py
+++ b/old/eris.py
@@ -1,21 +1,18 @@
 #!/usr/bin/env python
 # Elasticsearch Recon Ingestion Scripts (ERIS) - Developed by Acidvegas (https://git.acid.vegas/eris)
-# eris.py
 
-import asyncio
 import argparse
 import logging
 import os
 import stat
+import time
 import sys
 
 sys.dont_write_bytecode = True
 
 try:
-    # This is commented out because there is a bug with the elasticsearch library that requires a patch (see initialize() method below)
-    #from elasticsearch import AsyncElasticsearch 
+    from elasticsearch import Elasticsearch, helpers
     from elasticsearch.exceptions import NotFoundError
-    from elasticsearch.helpers import async_streaming_bulk
 except ImportError:
     raise ImportError('Missing required \'elasticsearch\' library. (pip install elasticsearch)')
 
@@ -31,51 +28,48 @@ class ElasticIndexer:
         :param args: Parsed arguments from argparse
         '''
 
-        self.chunk_max  = args.chunk_max * 1024 * 1024 # MB
+        self.chunk_max = args.chunk_max * 1024 * 1024 # MB
         self.chunk_size = args.chunk_size
-        self.es = None
+        self.chunk_threads = args.chunk_threads
+        self.dry_run = args.dry_run
         self.es_index = args.index
 
-        self.es_config = {
-            'hosts': [f'{args.host}:{args.port}'],
-            'verify_certs': args.self_signed,
-            'ssl_show_warn': args.self_signed,
-            'request_timeout': args.timeout,
-            'max_retries': args.retries,
-            'retry_on_timeout': True,
-            'sniff_on_start': True, # Is this problematic? 
-            'sniff_on_node_failure': True,
-            'min_delay_between_sniffing': 60 # Add config option for this?
-        }
+        if not args.dry_run:
+            es_config = {
+                'hosts': [f'{args.host}:{args.port}'],
+                'verify_certs': args.self_signed,
+                'ssl_show_warn': args.self_signed,
+                'request_timeout': args.timeout,
+                'max_retries': args.retries,
+                'retry_on_timeout': True,
+                'sniff_on_start': False,
+                'sniff_on_node_failure': True,
+                'min_delay_between_sniffing': 60 # Add config option for this?
+            }
 
-        if args.api_key:
-            self.es_config['api_key'] = (args.api_key, '') # Verify this is correct
-        else:
-            self.es_config['basic_auth'] = (args.user, args.password)
-            
-        
-    async def initialize(self):
-        '''Initialize the Elasticsearch client.'''
+            if args.api_key:
+                es_config['headers'] = {'Authorization': f'ApiKey {args.api_key}'}
+            else:
+                es_config['basic_auth'] = (args.user, args.password)
+                
+            # Patching the Elasticsearch client to fix a bug with sniffing (https://github.com/elastic/elasticsearch-py/issues/2005#issuecomment-1645641960)
+            import sniff_patch
+            self.es = sniff_patch.init_elasticsearch(**es_config)
 
-        # Patching the Elasticsearch client to fix a bug with sniffing (https://github.com/elastic/elasticsearch-py/issues/2005#issuecomment-1645641960)
-        import sniff_patch
-        self.es = sniff_patch.init_elasticsearch(**self.es_config)
-
-        # Remove the above and uncomment the below if the bug is fixed in the Elasticsearch client:
-        #self.es = AsyncElasticsearch(**es_config)
+            # Remove the above and uncomment the below if the bug is fixed in the Elasticsearch client:
+            #self.es = Elasticsearch(**es_config)
 
 
-    async def create_index(self, map_body: dict, pipeline: str = '', replicas: int = 1, shards: int = 1):
+    def create_index(self, map_body: dict, pipeline: str = '', replicas: int = 1, shards: int = 1, ):
         '''
         Create the Elasticsearch index with the defined mapping.
         
-        :param map_body: Mapping for the index
-        :param pipeline: Name of the ingest pipeline to use for the index
+        :param pipline: Name of the ingest pipeline to use for the index
         :param replicas: Number of replicas for the index
         :param shards: Number of shards for the index
         '''
 
-        if await self.es.indices.exists(index=self.es_index):
+        if self.es.indices.exists(index=self.es_index):
             logging.info(f'Index \'{self.es_index}\' already exists.')
             return
 
@@ -88,13 +82,13 @@ class ElasticIndexer:
 
         if pipeline:
             try:
-                await self.es.ingest.get_pipeline(id=pipeline)
+                self.es.ingest.get_pipeline(id=pipeline)
                 logging.info(f'Using ingest pipeline \'{pipeline}\' for index \'{self.es_index}\'')
                 mapping['settings']['index.default_pipeline'] = pipeline
             except NotFoundError:
                 raise ValueError(f'Ingest pipeline \'{pipeline}\' does not exist.')
 
-        response = await self.es.indices.create(index=self.es_index, body=mapping)
+        response = self.es.indices.create(index=self.es_index, body=mapping)
 
         if response.get('acknowledged') and response.get('shards_acknowledged'):
             logging.info(f'Index \'{self.es_index}\' successfully created.')
@@ -102,62 +96,106 @@ class ElasticIndexer:
             raise Exception(f'Failed to create index. ({response})')
 
 
-    async def get_cluster_health(self) -> dict:
+    def get_cluster_health(self) -> dict:
         '''Get the health of the Elasticsearch cluster.'''
 
-        return await self.es.cluster.health()
+        return self.es.cluster.health()
     
 
-    async def get_cluster_size(self) -> int:
+    def get_cluster_size(self) -> int:
         '''Get the number of nodes in the Elasticsearch cluster.'''
 
-        cluster_stats = await self.es.cluster.stats()
+        cluster_stats = self.es.cluster.stats()
         number_of_nodes = cluster_stats['nodes']['count']['total']
 
         return number_of_nodes
 
 
-    async def process_data(self, file_path: str, data_generator: callable):
+    def bulk_index(self, documents: list, file_path: str, count: int):
         '''
-        Index records in chunks to Elasticsearch.
+        Index a batch of documents to Elasticsearch.
+        
+        :param documents: List of documents to index
+        :param file_path: Path to the file being indexed
+        :param count: Total number of records processed
+        '''
+
+        remaining_documents = documents
+
+        parallel_bulk_config = {
+            'client': self.es,
+            'chunk_size': self.chunk_size,
+            'max_chunk_bytes': self.chunk_max,
+            'thread_count': self.chunk_threads,
+            'queue_size': 2 # Add config option for this?
+        }
+
+        while remaining_documents:
+            failed_documents = []
+
+            try:
+                for success, response in helpers.parallel_bulk(actions=remaining_documents, **parallel_bulk_config):
+                    if not success:
+                        failed_documents.append(response)
+
+                if not failed_documents:
+                    ingested = parallel_bulk_config['chunk_size'] * parallel_bulk_config['thread_count']
+                    logging.info(f'Successfully indexed {ingested:,} ({count:,} processed) records to {self.es_index} from {file_path}')
+                    break
+
+                else:
+                    logging.warning(f'Failed to index {len(failed_documents):,} failed documents! Retrying...')
+                    remaining_documents = failed_documents
+            except Exception as e:
+                logging.error(f'Failed to index documents! ({e})')
+                time.sleep(30) # Should we add a config option for this?
+
+
+    def process_file(self, file_path: str, batch_size: int, ingest_function: callable):
+        '''
+        Read and index records in batches to Elasticsearch.
 
         :param file_path: Path to the file
-        :param index_name: Name of the index
-        :param data_generator: Generator for the records to index
+        :param batch_size: Number of records to index per batch
+        :param ingest_function: Function to process the file
         '''
 
         count = 0
-        total = 0
-        
-        async for ok, result in async_streaming_bulk(self.es, actions=data_generator(file_path), chunk_size=self.chunk_size, max_chunk_bytes=self.chunk_max):
-            action, result = result.popitem()
+        records = []
 
-            if not ok:
-                logging.error(f'Failed to index document ({result["_id"]}) to {self.es_index} from {file_path} ({result})')
-                input('Press Enter to continue...') # Debugging (will possibly remove this since we have retries enabled)
+        for processed in ingest_function(file_path):
+
+            if not processed:
+                break
+
+            if self.dry_run:
+                print(processed)
                 continue
 
+            struct = {'_index': self.es_index, '_source': processed}
+            records.append(struct)
             count += 1
-            total += 1
+            
+            if len(records) >= batch_size:
+                self.bulk_index(records, file_path, count)
+                records = []
 
-            if count == self.chunk_size:
-                logging.info(f'Successfully indexed {self.chunk_size:,} ({total:,} processed) records to {self.es_index} from {file_path}')
-                count = 0
-
-        logging.info(f'Finished indexing {total:,} records to {self.es_index} from {file_path}')
+        if records:
+            self.bulk_index(records, file_path, count)
 
 
-async def main():
+def main():
     '''Main function when running this script directly.'''
 
     parser = argparse.ArgumentParser(description='Index data into Elasticsearch.')
     
     # General arguments
     parser.add_argument('input_path', help='Path to the input file or directory') # Required
+    parser.add_argument('--dry-run', action='store_true', help='Dry run (do not index records to Elasticsearch)')
     parser.add_argument('--watch', action='store_true', help='Create or watch a FIFO for real-time indexing')
     
     # Elasticsearch arguments
-    parser.add_argument('--host', default='http://localhost/', help='Elasticsearch host')
+    parser.add_argument('--host', default='localhost', help='Elasticsearch host')
     parser.add_argument('--port', type=int, default=9200, help='Elasticsearch port')
     parser.add_argument('--user', default='elastic', help='Elasticsearch username')
     parser.add_argument('--password', default=os.getenv('ES_PASSWORD'), help='Elasticsearch password (if not provided, check environment variable ES_PASSWORD)')
@@ -168,16 +206,16 @@ async def main():
     parser.add_argument('--index', help='Elasticsearch index name')
     parser.add_argument('--pipeline', help='Use an ingest pipeline for the index')
     parser.add_argument('--replicas', type=int, default=1, help='Number of replicas for the index')
-    parser.add_argument('--shards', type=int, default=1, help='Number of shards for the index')
+    parser.add_argument('--shards', type=int, default=3, help='Number of shards for the index')
     
     # Performance arguments
+    parser.add_argument('--chunk-max', type=int, default=10, help='Maximum size in MB of a chunk')
     parser.add_argument('--chunk-size', type=int, default=50000, help='Number of records to index in a chunk')
-    parser.add_argument('--chunk-max', type=int, default=100, help='Maximum size of a chunk in bytes')
-    parser.add_argument('--retries', type=int, default=100, help='Number of times to retry indexing a chunk before failing')
-    parser.add_argument('--timeout', type=int, default=60, help='Number of seconds to wait before retrying a chunk')
+    parser.add_argument('--chunk-threads', type=int, default=3, help='Number of threads to use when indexing in chunks')
+    parser.add_argument('--retries', type=int, default=60, help='Number of times to retry indexing a chunk before failing')
+    parser.add_argument('--timeout', type=int, default=30, help='Number of seconds to wait before retrying a chunk')
 
     # Ingestion arguments
-    parser.add_argument('--cert', action='store_true', help='Index Certstream records')
     parser.add_argument('--httpx', action='store_true', help='Index Httpx records')
     parser.add_argument('--masscan', action='store_true', help='Index Masscan records')
     parser.add_argument('--massdns', action='store_true', help='Index Massdns records')
@@ -194,10 +232,7 @@ async def main():
         raise FileNotFoundError(f'Input path {args.input_path} does not exist or is not a file or directory')
 
     edx = ElasticIndexer(args)
-    await edx.initialize() # Initialize the Elasticsearch client asyncronously
 
-    if args.cert:
-        from ingestors import ingest_certs   as ingestor
     if args.httpx:
         from ingestors import ingest_httpx   as ingestor
     elif args.masscan:
@@ -206,28 +241,32 @@ async def main():
         from ingestors import ingest_massdns as ingestor
     elif args.zone:
         from ingestors import ingest_zone    as ingestor
+
+    batch_size = 0
     
-    health = await edx.get_cluster_health()
-    print(health)
+    if not args.dry_run:
+        print(edx.get_cluster_health())
 
-    await asyncio.sleep(5) # Delay to allow time for sniffing to complete
-    
-    nodes = await edx.get_cluster_size()
-    logging.info(f'Connected to {nodes:,} Elasticsearch node(s)')
+        time.sleep(3) # Delay to allow time for sniffing to complete
+        
+        nodes = edx.get_cluster_size()
+        logging.info(f'Connected to {nodes:,} Elasticsearch node(s)')
 
-    if not edx.es_index:
-        edx.es_index = ingestor.default_index
+        if not edx.es_index:
+            edx.es_index = ingestor.default_index
 
-    map_body = ingestor.construct_map()
-    await edx.create_index(map_body, args.pipeline, args.replicas, args.shards)
+        map_body = ingestor.construct_map()
+        edx.create_index(map_body, args.pipeline, args.replicas, args.shards)
+
+        batch_size = int(nodes * (args.chunk_size * args.chunk_threads))
     
     if os.path.isfile(args.input_path):
         logging.info(f'Processing file: {args.input_path}')
-        await edx.process_data(args.input_path, ingestor.process_data)
+        edx.process_file(args.input_path, batch_size, ingestor.process_file)
 
     elif stat.S_ISFIFO(os.stat(args.input_path).st_mode):
         logging.info(f'Watching FIFO: {args.input_path}')
-        await edx.process_data(args.input_path, ingestor.process_data)
+        edx.process_file(args.input_path, batch_size, ingestor.process_file)
 
     elif os.path.isdir(args.input_path):
         count = 1
@@ -237,7 +276,7 @@ async def main():
             file_path = os.path.join(args.input_path, file)
             if os.path.isfile(file_path):
                 logging.info(f'[{count:,}/{total:,}] Processing file: {file_path}')
-                await edx.process_data(file_path, ingestor.process_data)
+                edx.process_file(file_path, batch_size, ingestor.process_file)
                 count += 1
             else:
                 logging.warning(f'[{count:,}/{total:,}] Skipping non-file: {file_path}')
@@ -245,4 +284,4 @@ async def main():
 
 
 if __name__ == '__main__':
-    asyncio.run(main())
\ No newline at end of file
+    main()
\ No newline at end of file
diff --git a/async_dev/ingestors/__init__.py b/old/ingestors/__init__.py
similarity index 100%
rename from async_dev/ingestors/__init__.py
rename to old/ingestors/__init__.py
diff --git a/async_dev/ingestors/ingest_httpx.py b/old/ingestors/ingest_httpx.py
similarity index 88%
rename from async_dev/ingestors/ingest_httpx.py
rename to old/ingestors/ingest_httpx.py
index 93d8b58..4ea14bc 100644
--- a/async_dev/ingestors/ingest_httpx.py
+++ b/old/ingestors/ingest_httpx.py
@@ -4,11 +4,6 @@
 
 import json
 
-try:
-    import aiofiles
-except ImportError:
-    raise ImportError('Missing required \'aiofiles\' library. (pip install aiofiles)')
-
 default_index = 'httpx-logs'
 
 def construct_map() -> dict:
@@ -27,15 +22,15 @@ def construct_map() -> dict:
     return mapping
 
 
-async def process_data(file_path: str):
+def process_file(file_path: str):
     '''
     Read and process HTTPX records from the log file.
 
     :param file_path: Path to the HTTPX log file
     '''
 
-    async with aiofiles.open(file_path, mode='r') as input_file:
-        async for line in input_file:
+    with open(file_path, 'r') as file:
+        for line in file:
             line = line.strip()
 
             if not line:
@@ -48,7 +43,7 @@ async def process_data(file_path: str):
 
             del record['failed'], record['knowledgebase'], record['time']
 
-            yield {'_index': default_index, '_source': record}
+            yield record
 
     return None # EOF
 
diff --git a/async_dev/ingestors/ingest_masscan.py b/old/ingestors/ingest_masscan.py
similarity index 72%
rename from async_dev/ingestors/ingest_masscan.py
rename to old/ingestors/ingest_masscan.py
index 5eb0660..96f1802 100644
--- a/async_dev/ingestors/ingest_masscan.py
+++ b/old/ingestors/ingest_masscan.py
@@ -19,11 +19,6 @@ import logging
 import re
 import time
 
-try:
-    import aiofiles
-except ImportError:
-    raise ImportError('Missing required \'aiofiles\' library. (pip install aiofiles)')
-
 default_index = 'masscan-logs'
 
 def construct_map() -> dict:
@@ -59,15 +54,15 @@ def construct_map() -> dict:
     return mapping
 
 
-async def process_data(file_path: str):
+def process_file(file_path: str):
     '''
     Read and process Masscan records from the log file.
 
     :param file_path: Path to the Masscan log file
     '''
 
-    async with aiofiles.open(file_path, mode='r') as input_file:
-        async for line in input_file:
+    with open(file_path, 'r') as file:
+        for line in file:
             line = line.strip()
 
             if not line or not line.startswith('{'):
@@ -79,29 +74,22 @@ async def process_data(file_path: str):
             try:
                 record = json.loads(line)
             except json.decoder.JSONDecodeError:
-                # In rare cases, the JSON record may be incomplete or malformed:
-                #   {   "ip": "51.161.12.223",   "timestamp": "1707628302", "ports": [ {"port": 22, "proto": "tcp", "service": {"name": "ssh", "banner":
-                #   {   "ip": "83.66.211.246",   "timestamp": "1706557002"
                 logging.error(f'Failed to parse JSON record! ({line})')
-                input('Press Enter to continue...') # Pause for review & debugging (Will remove pausing in production, still investigating the cause of this issue.)
+                input('Press Enter to continue...') # Debugging
                 continue
 
-            if len(record['ports']) > 1:
-                logging.warning(f'Multiple ports found for record! ({record})')
-                input('Press Enter to continue...') # Pause for review (Will remove pausing in production, still investigating if you ever seen more than one port in a record.)
-
             for port_info in record['ports']:
                 struct = {
-                    'ip'    : record['ip'],
-                    'port'  : port_info['port'],
-                    'proto' : port_info['proto'],
-                    'seen'  : time.strftime('%Y-%m-%dT%H:%M:%SZ', time.gmtime(int(record['timestamp']))),
+                    'ip': record['ip'],
+                    'port': port_info['port'],
+                    'proto': port_info['proto'],
+                    'seen': time.strftime('%Y-%m-%dT%H:%M:%SZ', time.gmtime(int(record['timestamp']))),
                 }
 
                 if 'service' in port_info:
                     if 'name' in port_info['service']:
-                        if (service_name := port_info['service']['name']) not in ('unknown',''):
-                            struct['service'] = service_name
+                        if port_info['service']['name'] != 'unknown':
+                            struct['service'] = port_info['service']['name']
 
                     if 'banner' in port_info['service']:
                         banner = ' '.join(port_info['service']['banner'].split()) # Remove extra whitespace
@@ -112,7 +100,7 @@ async def process_data(file_path: str):
                             else:
                                 struct['banner'] = banner
 
-                yield {'_index': default_index, '_source': struct}
+                yield struct
  
     return None # EOF
 
@@ -143,6 +131,6 @@ Will be indexed as:
     "service": "ssh",
     "banner": "SSH-2.0-OpenSSH_8.9p1 Ubuntu-3ubuntu0.4",
     "seen": "2021-10-08T02:04:28Z",
-    "ref_id": "?sKfOvsC4M4a2W8PaC4zF?" # TCP RST Payload, Might be useful..
+    "ref_id": "?sKfOvsC4M4a2W8PaC4zF?" # TCP RST Payload (Do we need this?)
 }
 '''
\ No newline at end of file
diff --git a/async_dev/ingestors/ingest_massdns.py b/old/ingestors/ingest_massdns.py
similarity index 86%
rename from async_dev/ingestors/ingest_massdns.py
rename to old/ingestors/ingest_massdns.py
index 5c8e121..fd8f3b7 100644
--- a/async_dev/ingestors/ingest_massdns.py
+++ b/old/ingestors/ingest_massdns.py
@@ -4,11 +4,6 @@
 
 import time
 
-try:
-    import aiofiles
-except ImportError:
-    raise ImportError('Missing required \'aiofiles\' library. (pip install aiofiles)')
-
 default_index = 'ptr-records'
 
 def construct_map() -> dict:
@@ -30,15 +25,15 @@ def construct_map() -> dict:
     return mapping
 
 
-async def process_data(file_path: str):
+def process_file(file_path: str):
     '''
     Read and process Massdns records from the log file.
 
     :param file_path: Path to the Massdns log file
     '''
 
-    async with aiofiles.open(file_path, mode='r') as input_file:
-        async for line in input_file:
+    with open(file_path, 'r') as file:
+        for line in file:
             line = line.strip()
 
             if not line:
@@ -70,7 +65,7 @@ async def process_data(file_path: str):
                 'seen': time.strftime('%Y-%m-%dT%H:%M:%SZ', time.gmtime())
             }
 
-            yield {'_index': default_index, '_source': struct}
+            yield struct
     
     return None # EOF
 
diff --git a/async_dev/ingestors/ingest_zone.py b/old/ingestors/ingest_zone.py
similarity index 91%
rename from async_dev/ingestors/ingest_zone.py
rename to old/ingestors/ingest_zone.py
index 7cb552d..5c9d358 100644
--- a/async_dev/ingestors/ingest_zone.py
+++ b/old/ingestors/ingest_zone.py
@@ -4,11 +4,6 @@
 
 import time
 
-try:
-    import aiofiles
-except ImportError:
-    raise ImportError('Missing required \'aiofiles\' library. (pip install aiofiles)')
-
 default_index = 'dns-zones'
 record_types = ('a','aaaa','caa','cdnskey','cds','cname','dnskey','ds','mx','naptr','ns','nsec','nsec3','nsec3param','ptr','rrsig','rp','sshfp','soa','srv','txt','type65534')
 
@@ -47,7 +42,7 @@ def construct_map() -> dict:
     return mapping
 
 
-async def process_data(file_path: str):
+def process_file(file_path: str):
     '''
     Read and process zone file records.
 
@@ -57,8 +52,8 @@ async def process_data(file_path: str):
     domain_records = {}
     last_domain = None
 
-    async with aiofiles.open(file_path, mode='r') as input_file:
-        async for line in input_file:
+    with open(file_path, 'r') as file:
+        for line in file:
             line = line.strip()
 
             if not line or line.startswith(';'):
@@ -93,11 +88,11 @@ async def process_data(file_path: str):
 
             if domain != last_domain:
                 if last_domain:
-                    struct = {'domain': last_domain, 'records': domain_records[last_domain], 'seen': time.strftime('%Y-%m-%dT%H:%M:%SZ', time.gmtime())}
+                    source = {'domain': last_domain, 'records': domain_records[last_domain], 'seen': time.strftime('%Y-%m-%dT%H:%M:%SZ', time.gmtime())}
                     
                     del domain_records[last_domain]
 
-                    yield {'_index': default_index, '_source': struct}
+                    yield source
 
                 last_domain = domain
 
diff --git a/async_dev/sniff_patch.py b/old/sniff_patch.py
similarity index 72%
rename from async_dev/sniff_patch.py
rename to old/sniff_patch.py
index 0500cf0..70caa2f 100644
--- a/async_dev/sniff_patch.py
+++ b/old/sniff_patch.py
@@ -1,6 +1,6 @@
 #!/usr/bin/env python
 # Elasticsearch Recon Ingestion Scripts (ERIS) - Developed by Acidvegas (https://git.acid.vegas/eris)
-# sniff_patch.py [asyncronous developement]
+# sniff_patch.py
 
 # Note:
 #   This is a patch for the elasticsearch 8.x client to fix the sniff_* options.
@@ -12,23 +12,23 @@
 
 import base64
 
-import elasticsearch._async.client as async_client
+import elasticsearch._sync.client as client
 from elasticsearch.exceptions import SerializationError, ConnectionError
 
 
-async def init_elasticsearch_async(*args, **kwargs):
+def init_elasticsearch(*args, **kwargs):
     '''
-    Initialize the Async Elasticsearch client with the sniff patch.
+    Initialize the Elasticsearch client with the sniff patch.
     
-    :param args: Async Elasticsearch positional arguments.
-    :param kwargs: Async Elasticsearch keyword arguments.
+    :param args: Elasticsearch positional arguments.
+    :param kwargs: Elasticsearch keyword arguments.
     '''
-    async_client.default_sniff_callback = _override_async_sniff_callback(kwargs['basic_auth'])
+    client.default_sniff_callback = _override_sniff_callback(kwargs['basic_auth'])
 
-    return async_client.AsyncElasticsearch(*args, **kwargs)
+    return client.Elasticsearch(*args, **kwargs)
 
 
-def _override_async_sniff_callback(basic_auth):
+def _override_sniff_callback(basic_auth):
     '''
     Taken from https://github.com/elastic/elasticsearch-py/blob/8.8/elasticsearch/_sync/client/_base.py#L166
     Completely unmodified except for adding the auth header to the elastic request.
@@ -38,19 +38,19 @@ def _override_async_sniff_callback(basic_auth):
         - https://github.com/elastic/elasticsearch-py/issues/2005
     '''
     auth_str = base64.b64encode(':'.join(basic_auth).encode()).decode()
-    sniffed_node_callback = async_client._base._default_sniffed_node_callback
+    sniffed_node_callback = client._base._default_sniffed_node_callback
 
-    async def modified_async_sniff_callback(transport, sniff_options):
+    def modified_sniff_callback(transport, sniff_options):
         for _ in transport.node_pool.all():
             try:
-                meta, node_infos = await transport.perform_request(
+                meta, node_infos = transport.perform_request(
                     'GET',
                     '/_nodes/_all/http',
-                    headers={
+                    headers = {
                         'accept': 'application/vnd.elasticsearch+json; compatible-with=8',
-                        'authorization': f'Basic {auth_str}'  # This auth header is missing in 8.x releases of the client, and causes 401s
+                        'authorization': f'Basic {auth_str}' # This auth header is missing in 8.x releases of the client, and causes 401s
                     },
-                    request_timeout=(
+                    request_timeout = (
                         sniff_options.sniff_timeout
                         if not sniff_options.is_initial_sniff
                         else None
@@ -79,7 +79,7 @@ def _override_async_sniff_callback(basic_auth):
                     port = int(port_str)
 
                 assert sniffed_node_callback is not None
-                sniffed_node = await sniffed_node_callback(
+                sniffed_node = sniffed_node_callback(
                     node_info, meta.node.replace(host=host, port=port)
                 )
                 if sniffed_node is None:
@@ -93,4 +93,4 @@ def _override_async_sniff_callback(basic_auth):
 
         return []
 
-    return modified_async_sniff_callback
\ No newline at end of file
+    return modified_sniff_callback
\ No newline at end of file
diff --git a/sniff_patch.py b/sniff_patch.py
index 70caa2f..0500cf0 100644
--- a/sniff_patch.py
+++ b/sniff_patch.py
@@ -1,6 +1,6 @@
 #!/usr/bin/env python
 # Elasticsearch Recon Ingestion Scripts (ERIS) - Developed by Acidvegas (https://git.acid.vegas/eris)
-# sniff_patch.py
+# sniff_patch.py [asyncronous developement]
 
 # Note:
 #   This is a patch for the elasticsearch 8.x client to fix the sniff_* options.
@@ -12,23 +12,23 @@
 
 import base64
 
-import elasticsearch._sync.client as client
+import elasticsearch._async.client as async_client
 from elasticsearch.exceptions import SerializationError, ConnectionError
 
 
-def init_elasticsearch(*args, **kwargs):
+async def init_elasticsearch_async(*args, **kwargs):
     '''
-    Initialize the Elasticsearch client with the sniff patch.
+    Initialize the Async Elasticsearch client with the sniff patch.
     
-    :param args: Elasticsearch positional arguments.
-    :param kwargs: Elasticsearch keyword arguments.
+    :param args: Async Elasticsearch positional arguments.
+    :param kwargs: Async Elasticsearch keyword arguments.
     '''
-    client.default_sniff_callback = _override_sniff_callback(kwargs['basic_auth'])
+    async_client.default_sniff_callback = _override_async_sniff_callback(kwargs['basic_auth'])
 
-    return client.Elasticsearch(*args, **kwargs)
+    return async_client.AsyncElasticsearch(*args, **kwargs)
 
 
-def _override_sniff_callback(basic_auth):
+def _override_async_sniff_callback(basic_auth):
     '''
     Taken from https://github.com/elastic/elasticsearch-py/blob/8.8/elasticsearch/_sync/client/_base.py#L166
     Completely unmodified except for adding the auth header to the elastic request.
@@ -38,19 +38,19 @@ def _override_sniff_callback(basic_auth):
         - https://github.com/elastic/elasticsearch-py/issues/2005
     '''
     auth_str = base64.b64encode(':'.join(basic_auth).encode()).decode()
-    sniffed_node_callback = client._base._default_sniffed_node_callback
+    sniffed_node_callback = async_client._base._default_sniffed_node_callback
 
-    def modified_sniff_callback(transport, sniff_options):
+    async def modified_async_sniff_callback(transport, sniff_options):
         for _ in transport.node_pool.all():
             try:
-                meta, node_infos = transport.perform_request(
+                meta, node_infos = await transport.perform_request(
                     'GET',
                     '/_nodes/_all/http',
-                    headers = {
+                    headers={
                         'accept': 'application/vnd.elasticsearch+json; compatible-with=8',
-                        'authorization': f'Basic {auth_str}' # This auth header is missing in 8.x releases of the client, and causes 401s
+                        'authorization': f'Basic {auth_str}'  # This auth header is missing in 8.x releases of the client, and causes 401s
                     },
-                    request_timeout = (
+                    request_timeout=(
                         sniff_options.sniff_timeout
                         if not sniff_options.is_initial_sniff
                         else None
@@ -79,7 +79,7 @@ def _override_sniff_callback(basic_auth):
                     port = int(port_str)
 
                 assert sniffed_node_callback is not None
-                sniffed_node = sniffed_node_callback(
+                sniffed_node = await sniffed_node_callback(
                     node_info, meta.node.replace(host=host, port=port)
                 )
                 if sniffed_node is None:
@@ -93,4 +93,4 @@ def _override_sniff_callback(basic_auth):
 
         return []
 
-    return modified_sniff_callback
\ No newline at end of file
+    return modified_async_sniff_callback
\ No newline at end of file