Refactor: Use Async DB instead of Sync

src/aleph/api_entrypoint.py

@@ -7,7 +7,7 @@
 
 import aleph.config
 from aleph.chains.signature_verifier import SignatureVerifier
-from aleph.db.connection import make_engine, make_session_factory
+from aleph.db.connection import make_async_engine, make_async_session_factory
 from aleph.services.cache.node_cache import NodeCache
 from aleph.services.ipfs import IpfsService
 from aleph.services.p2p import init_p2p_client
@@ -34,12 +34,12 @@ async def configure_aiohttp_app(
     with sentry_sdk.start_transaction(name="init-api-server"):
         p2p_client = await init_p2p_client(config, service_name="api-server-aiohttp")
 
-        engine = make_engine(
+        engine = make_async_engine(
             config,
             echo=config.logging.level.value == logging.DEBUG,
             application_name="aleph-api",
         )
-        session_factory = make_session_factory(engine)
+        session_factory = make_async_session_factory(engine)
 
         node_cache = NodeCache(
             redis_host=config.redis.host.value, redis_port=config.redis.port.value

src/aleph/chains/bsc.py

@@ -5,13 +5,13 @@
 from aleph.chains.chain_data_service import PendingTxPublisher
 from aleph.chains.indexer_reader import AlephIndexerReader
 from aleph.types.chain_sync import ChainEventType
-from aleph.types.db_session import DbSessionFactory
+from aleph.types.db_session import AsyncDbSessionFactory
 
 
 class BscConnector(ChainReader):
     def __init__(
         self,
-        session_factory: DbSessionFactory,
+        session_factory: AsyncDbSessionFactory,
         pending_tx_publisher: PendingTxPublisher,
     ):
         self.indexer_reader = AlephIndexerReader(

src/aleph/chains/chain_data_service.py

@@ -31,22 +31,22 @@
 from aleph.storage import StorageService
 from aleph.toolkit.timestamp import utc_now
 from aleph.types.chain_sync import ChainSyncProtocol
-from aleph.types.db_session import DbSession, DbSessionFactory
+from aleph.types.db_session import AsyncDbSession, AsyncDbSessionFactory
 from aleph.types.files import FileType
 from aleph.utils import get_sha256
 
 
 class ChainDataService:
     def __init__(
         self,
-        session_factory: DbSessionFactory,
+        session_factory: AsyncDbSessionFactory,
         storage_service: StorageService,
     ):
         self.session_factory = session_factory
         self.storage_service = storage_service
 
     async def prepare_sync_event_payload(
-        self, session: DbSession, messages: List[MessageDb]
+        self, session: AsyncDbSession, messages: List[MessageDb]
     ) -> OffChainSyncEventPayload:
         """
         Returns the payload of a sync event to be published on chain.
@@ -129,22 +129,22 @@ async def _get_tx_messages_off_chain_protocol(
         LOGGER.info("Got bulk data with %d items" % len(messages))
         if config.ipfs.enabled.value:
             try:
-                with self.session_factory() as session:
+                async with self.session_factory() as session:
                     # Some chain data files are duplicated, and can be treated in parallel,
                     # hence the upsert.
-                    upsert_file(
+                    await upsert_file(
                         session=session,
                         file_hash=sync_file_content.hash,
                         file_type=FileType.FILE,
                         size=len(sync_file_content.raw_value),
                     )
-                    upsert_tx_file_pin(
+                    await upsert_tx_file_pin(
                         session=session,
                         file_hash=file_hash,
                         tx_hash=tx.hash,
                         created=utc_now(),
                     )
-                    session.commit()
+                    await session.commit()
 
                 # Some IPFS fetches can take a while, hence the large timeout.
                 await asyncio.wait_for(
@@ -246,17 +246,17 @@ def __init__(self, pending_tx_exchange: aio_pika.abc.AbstractExchange):
         self.pending_tx_exchange = pending_tx_exchange
 
     @staticmethod
-    def add_pending_tx(session: DbSession, tx: ChainTxDb):
-        upsert_chain_tx(session=session, tx=tx)
-        upsert_pending_tx(session=session, tx_hash=tx.hash)
+    async def add_pending_tx(session: AsyncDbSession, tx: ChainTxDb):
+        await upsert_chain_tx(session=session, tx=tx)
+        await upsert_pending_tx(session=session, tx_hash=tx.hash)
 
     async def publish_pending_tx(self, tx: ChainTxDb):
         message = aio_pika.Message(body=tx.hash.encode("utf-8"))
         await self.pending_tx_exchange.publish(
             message=message, routing_key=f"{tx.chain.value}.{tx.publisher}.{tx.hash}"
         )
 
-    async def add_and_publish_pending_tx(self, session: DbSession, tx: ChainTxDb):
+    async def add_and_publish_pending_tx(self, session: AsyncDbSession, tx: ChainTxDb):
         """
         Add an event published on one of the supported chains.
         Adds the tx to the database, creates a pending tx entry in the pending tx table
@@ -265,8 +265,8 @@ async def add_and_publish_pending_tx(self, session: DbSession, tx: ChainTxDb):
         Note that this function commits changes to the database for consistency
         between the DB and the message queue.
         """
-        self.add_pending_tx(session=session, tx=tx)
-        session.commit()
+        await self.add_pending_tx(session=session, tx=tx)
+        await session.commit()
         await self.publish_pending_tx(tx)
 
     @classmethod

src/aleph/chains/connector.py

@@ -5,7 +5,7 @@
 from aleph_message.models import Chain
 from configmanager import Config
 
-from aleph.types.db_session import DbSessionFactory
+from aleph.types.db_session import AsyncDbSessionFactory
 
 from .abc import ChainReader, ChainWriter
 from .bsc import BscConnector
@@ -29,7 +29,7 @@ class ChainConnector:
 
     def __init__(
         self,
-        session_factory: DbSessionFactory,
+        session_factory: AsyncDbSessionFactory,
         pending_tx_publisher: PendingTxPublisher,
         chain_data_service: ChainDataService,
     ):

src/aleph/chains/ethereum.py

@@ -23,7 +23,7 @@
 from aleph.schemas.chains.tx_context import TxContext
 from aleph.toolkit.timestamp import utc_now
 from aleph.types.chain_sync import ChainEventType
-from aleph.types.db_session import DbSessionFactory
+from aleph.types.db_session import AsyncDbSessionFactory
 from aleph.utils import run_in_executor
 
 from .abc import ChainWriter
@@ -77,7 +77,7 @@ class EthereumVerifier(EVMVerifier):
 class EthereumConnector(ChainWriter):
     def __init__(
         self,
-        session_factory: DbSessionFactory,
+        session_factory: AsyncDbSessionFactory,
         pending_tx_publisher: PendingTxPublisher,
         chain_data_service: ChainDataService,
     ):
@@ -93,8 +93,8 @@ def __init__(
 
     async def get_last_height(self, sync_type: ChainEventType) -> int:
         """Returns the last height for which we already have the ethereum data."""
-        with self.session_factory() as session:
-            last_height = get_last_height(
+        async with self.session_factory() as session:
+            last_height = await get_last_height(
                 session=session, chain=Chain.ETH, sync_type=sync_type
             )
 
@@ -209,15 +209,15 @@ async def _request_transactions(
             # block height to do next requests from there.
             last_height = event_data.blockNumber
             if last_height:
-                with self.session_factory() as session:
-                    upsert_chain_sync_status(
+                async with self.session_factory() as session:
+                    await upsert_chain_sync_status(
                         session=session,
                         chain=Chain.ETH,
                         sync_type=ChainEventType.SYNC,
                         height=last_height,
                         update_datetime=utc_now(),
                     )
-                    session.commit()
+                    await session.commit()
 
     async def fetch_ethereum_sync_events(self, config: Config):
         last_stored_height = await self.get_last_height(sync_type=ChainEventType.SYNC)
@@ -236,11 +236,11 @@ async def fetch_ethereum_sync_events(self, config: Config):
                 config, web3, contract, abi, last_stored_height
             ):
                 tx = ChainTxDb.from_sync_tx_context(tx_context=context, tx_data=jdata)
-                with self.session_factory() as session:
+                async with self.session_factory() as session:
                     await self.pending_tx_publisher.add_and_publish_pending_tx(
                         session=session, tx=tx
                     )
-                    session.commit()
+                    await session.commit()
 
     async def fetch_sync_events_task(self, config: Config):
         while True:
@@ -295,10 +295,10 @@ async def packer(self, config: Config):
         i = 0
         gas_price = web3.eth.generate_gas_price()
         while True:
-            with self.session_factory() as session:
+            async with self.session_factory() as session:
                 # Wait for sync operations to complete
-                if (count_pending_txs(session=session, chain=Chain.ETH)) or (
-                    count_pending_messages(session=session, chain=Chain.ETH)
+                if (await count_pending_txs(session=session, chain=Chain.ETH)) or (
+                    await count_pending_messages(session=session, chain=Chain.ETH)
                 ) > 1000:
                     await asyncio.sleep(30)
                     continue
@@ -317,7 +317,7 @@ async def packer(self, config: Config):
                 nonce = web3.eth.get_transaction_count(account.address)
 
                 messages = list(
-                    get_unconfirmed_messages(
+                    await get_unconfirmed_messages(
                         session=session, limit=10000, chain=Chain.ETH
                     )
                 )
@@ -332,7 +332,7 @@ async def packer(self, config: Config):
                     )
                 )
                 # Required to apply update to the files table in get_chaindata
-                session.commit()
+                await session.commit()
                 response = await run_in_executor(
                     None,
                     self._broadcast_content,

src/aleph/chains/indexer_reader.py

@@ -38,7 +38,7 @@
 from aleph.toolkit.range import MultiRange, Range
 from aleph.toolkit.timestamp import timestamp_to_datetime
 from aleph.types.chain_sync import ChainEventType, ChainSyncProtocol
-from aleph.types.db_session import DbSession, DbSessionFactory
+from aleph.types.db_session import AsyncDbSession, AsyncDbSessionFactory
 
 LOGGER = logging.getLogger(__name__)
 
@@ -246,7 +246,7 @@ class AlephIndexerReader:
     def __init__(
         self,
         chain: Chain,
-        session_factory: DbSessionFactory,
+        session_factory: AsyncDbSessionFactory,
         pending_tx_publisher: PendingTxPublisher,
     ):
         self.chain = chain
@@ -257,7 +257,7 @@ def __init__(
 
     async def fetch_range(
         self,
-        session: DbSession,
+        session: AsyncDbSession,
         indexer_client: AlephIndexerClient,
         chain: Chain,
         event_type: ChainEventType,
@@ -295,7 +295,9 @@ async def fetch_range(
                 LOGGER.info("%d new txs", len(txs))
                 # Events are listed in reverse order in the indexer response
                 for tx in txs:
-                    self.pending_tx_publisher.add_pending_tx(session=session, tx=tx)
+                    await self.pending_tx_publisher.add_pending_tx(
+                        session=session, tx=tx
+                    )
 
                 if nb_events_fetched >= limit:
                     last_event_datetime = txs[-1].datetime
@@ -320,7 +322,7 @@ async def fetch_range(
                 str(synced_range),
             )
 
-            add_indexer_range(
+            await add_indexer_range(
                 session=session,
                 chain=chain,
                 event_type=event_type,
@@ -329,7 +331,7 @@ async def fetch_range(
 
             # Committing periodically reduces the size of DB transactions for large numbers
             # of events.
-            session.commit()
+            await session.commit()
 
             # Now that the txs are committed to the DB, add them to the pending tx message queue
             for tx in txs:
@@ -347,7 +349,7 @@ async def fetch_range(
 
     async def fetch_new_events(
         self,
-        session: DbSession,
+        session: AsyncDbSession,
         indexer_url: str,
         smart_contract_address: str,
         event_type: ChainEventType,
@@ -372,7 +374,7 @@ async def fetch_new_events(
                 ]
             )
 
-            multirange_to_sync = get_missing_indexer_datetime_multirange(
+            multirange_to_sync = await get_missing_indexer_datetime_multirange(
                 session=session,
                 chain=self.chain,
                 event_type=event_type,
@@ -399,14 +401,14 @@ async def fetcher(
     ):
         while True:
             try:
-                with self.session_factory() as session:
+                async with self.session_factory() as session:
                     await self.fetch_new_events(
                         session=session,
                         indexer_url=indexer_url,
                         smart_contract_address=smart_contract_address,
                         event_type=event_type,
                     )
-                    session.commit()
+                    await session.commit()
             except Exception:
                 LOGGER.exception(
                     "An unexpected exception occurred, "