rename producer_and_message_group_id to producer_id and make it optional

CHANGELOG.md

@@ -1,4 +1,6 @@
 * BROKEN CHANGES: change names of public method in topic client
+* BROKEN CHANGES: rename parameter producer_and_message_group_id to producer_id
+* producer_id is optional now
 
 ## 3.0.1b5 ##
 * Remove six package from code and dependencies (remove support python2)

examples/topic/writer_async_example.py

@@ -10,23 +10,23 @@
 async def create_writer(db: ydb.aio.Driver):
     async with ydb.TopicClientAsyncIO(db).writer(
         "/database/topic/path",
-        producer_and_message_group_id="producer-id",
+        producer_id="producer-id",
     ) as writer:
         await writer.write(TopicWriterMessage("asd"))
 
 
 async def connect_and_wait(db: ydb.aio.Driver):
     async with ydb.TopicClientAsyncIO(db).writer(
         "/database/topic/path",
-        producer_and_message_group_id="producer-id",
+        producer_id="producer-id",
     ) as writer:
         writer.wait_init()
 
 
 async def connect_without_context_manager(db: ydb.aio.Driver):
     writer = ydb.TopicClientAsyncIO(db).writer(
         "/database/topic/path",
-        producer_and_message_group_id="producer-id",
+        producer_id="producer-id",
     )
     try:
         pass  # some code

examples/topic/writer_example.py

@@ -15,31 +15,31 @@ async def connect():
     )
     writer = ydb.TopicClientAsyncIO(db).writer(
         "/local/topic",
-        producer_and_message_group_id="producer-id",
+        producer_id="producer-id",
     )
     await writer.write(TopicWriterMessage("asd"))
 
 
 def create_writer(db: ydb.Driver):
     with ydb.TopicClient(db).writer(
         "/database/topic/path",
-        producer_and_message_group_id="producer-id",
+        producer_id="producer-id",
     ) as writer:
         writer.write(TopicWriterMessage("asd"))
 
 
 def connect_and_wait(db: ydb.Driver):
     with ydb.TopicClient(db).writer(
         "/database/topic/path",
-        producer_and_message_group_id="producer-id",
+        producer_id="producer-id",
     ) as writer:
         writer.wait()
 
 
 def connect_without_context_manager(db: ydb.Driver):
     writer = ydb.TopicClient(db).writer(
         "/database/topic/path",
-        producer_and_message_group_id="producer-id",
+        producer_id="producer-id",
     )
     try:
         pass  # some code

tests/conftest.py

@@ -131,11 +131,24 @@ async def topic_path(driver, topic_consumer, database) -> str:
 @pytest.fixture()
 @pytest.mark.asyncio()
 async def topic_with_messages(driver, topic_path):
-    writer = driver.topic_client.writer(
-        topic_path, producer_and_message_group_id="fixture-producer-id"
-    )
+    writer = driver.topic_client.writer(topic_path, producer_id="fixture-producer-id")
     await writer.write_with_ack(
         ydb.TopicWriterMessage(data="123".encode()),
         ydb.TopicWriterMessage(data="456".encode()),
     )
     await writer.close()
+
+
+@pytest.fixture()
+@pytest.mark.asyncio()
+async def topic_reader(driver, topic_consumer, topic_path) -> ydb.TopicReaderAsyncIO:
+    reader = driver.topic_client.reader(topic=topic_path, consumer=topic_consumer)
+    yield reader
+    await reader.close()
+
+
+@pytest.fixture()
+def topic_reader_sync(driver_sync, topic_consumer, topic_path) -> ydb.TopicReader:
+    reader = driver_sync.topic_client.reader(topic=topic_path, consumer=topic_consumer)
+    yield reader
+    reader.close()

tests/topics/test_topic_writer.py

@@ -6,16 +6,14 @@
 @pytest.mark.asyncio
 class TestTopicWriterAsyncIO:
     async def test_send_message(self, driver: ydb.aio.Driver, topic_path):
-        writer = driver.topic_client.writer(
-            topic_path, producer_and_message_group_id="test"
-        )
+        writer = driver.topic_client.writer(topic_path, producer_id="test")
         await writer.write(ydb.TopicWriterMessage(data="123".encode()))
         await writer.close()
 
     async def test_wait_last_seqno(self, driver: ydb.aio.Driver, topic_path):
         async with driver.topic_client.writer(
             topic_path,
-            producer_and_message_group_id="test",
+            producer_id="test",
             auto_seqno=False,
         ) as writer:
             await writer.write_with_ack(
@@ -24,16 +22,28 @@ async def test_wait_last_seqno(self, driver: ydb.aio.Driver, topic_path):
 
         async with driver.topic_client.writer(
             topic_path,
-            producer_and_message_group_id="test",
-            get_last_seqno=True,
+            producer_id="test",
         ) as writer2:
             init_info = await writer2.wait_init()
             assert init_info.last_seqno == 5
 
+    async def test_random_producer_id(
+        self, driver: ydb.aio.Driver, topic_path, topic_reader: ydb.TopicReaderAsyncIO
+    ):
+        async with driver.topic_client.writer(topic_path) as writer:
+            await writer.write(ydb.TopicWriterMessage(data="123".encode()))
+        async with driver.topic_client.writer(topic_path) as writer:
+            await writer.write(ydb.TopicWriterMessage(data="123".encode()))
+
+        batch1 = await topic_reader.receive_batch()
+        batch2 = await topic_reader.receive_batch()
+
+        assert batch1.messages[0].producer_id != batch2.messages[0].producer_id
+
     async def test_auto_flush_on_close(self, driver: ydb.aio.Driver, topic_path):
         async with driver.topic_client.writer(
             topic_path,
-            producer_and_message_group_id="test",
+            producer_id="test",
             auto_seqno=False,
         ) as writer:
             last_seqno = 0
@@ -45,41 +55,37 @@ async def test_auto_flush_on_close(self, driver: ydb.aio.Driver, topic_path):
 
         async with driver.topic_client.writer(
             topic_path,
-            producer_and_message_group_id="test",
-            get_last_seqno=True,
+            producer_id="test",
         ) as writer:
             init_info = await writer.wait_init()
             assert init_info.last_seqno == last_seqno
 
 
 class TestTopicWriterSync:
     def test_send_message(self, driver_sync: ydb.Driver, topic_path):
-        writer = driver_sync.topic_client.writer(
-            topic_path, producer_and_message_group_id="test"
-        )
+        writer = driver_sync.topic_client.writer(topic_path, producer_id="test")
         writer.write(ydb.TopicWriterMessage(data="123".encode()))
         writer.close()
 
     def test_wait_last_seqno(self, driver_sync: ydb.Driver, topic_path):
         with driver_sync.topic_client.writer(
             topic_path,
-            producer_and_message_group_id="test",
+            producer_id="test",
             auto_seqno=False,
         ) as writer:
             writer.write_with_ack(ydb.TopicWriterMessage(data="123".encode(), seqno=5))
 
         with driver_sync.topic_client.writer(
             topic_path,
-            producer_and_message_group_id="test",
-            get_last_seqno=True,
+            producer_id="test",
         ) as writer2:
             init_info = writer2.wait_init()
             assert init_info.last_seqno == 5
 
     def test_auto_flush_on_close(self, driver_sync: ydb.Driver, topic_path):
         with driver_sync.topic_client.writer(
             topic_path,
-            producer_and_message_group_id="test",
+            producer_id="test",
             auto_seqno=False,
         ) as writer:
             last_seqno = 0
@@ -89,8 +95,23 @@ def test_auto_flush_on_close(self, driver_sync: ydb.Driver, topic_path):
 
         with driver_sync.topic_client.writer(
             topic_path,
-            producer_and_message_group_id="test",
-            get_last_seqno=True,
+            producer_id="test",
         ) as writer:
             init_info = writer.wait_init()
             assert init_info.last_seqno == last_seqno
+
+    def test_random_producer_id(
+        self,
+        driver_sync: ydb.aio.Driver,
+        topic_path,
+        topic_reader_sync: ydb.TopicReader,
+    ):
+        with driver_sync.topic_client.writer(topic_path) as writer:
+            writer.write(ydb.TopicWriterMessage(data="123".encode()))
+        with driver_sync.topic_client.writer(topic_path) as writer:
+            writer.write(ydb.TopicWriterMessage(data="123".encode()))
+
+        batch1 = topic_reader_sync.receive_batch()
+        batch2 = topic_reader_sync.receive_batch()
+
+        assert batch1.messages[0].producer_id != batch2.messages[0].producer_id

ydb/_topic_writer/topic_writer.py

@@ -1,8 +1,9 @@
 import datetime
 import enum
+import uuid
 from dataclasses import dataclass
 from enum import Enum
-from typing import List, Union, TextIO, BinaryIO, Optional, Callable, Mapping, Any, Dict
+from typing import List, Union, TextIO, BinaryIO, Optional, Any, Dict
 
 import typing
 
@@ -16,21 +17,31 @@
 
 @dataclass
 class PublicWriterSettings:
+    """
+    Settings for topic writer.
+
+    order of fields IS NOT stable, use keywords only
+    """
+
     topic: str
-    producer_and_message_group_id: str
+    producer_id: Optional[str] = None
     session_metadata: Optional[Dict[str, str]] = None
-    encoders: Union[Mapping[int, Callable[[bytes], bytes]], None] = None
-    serializer: Union[Callable[[Any], bytes], None] = None
-    send_buffer_count: Optional[int] = 10000
-    send_buffer_bytes: Optional[int] = 100 * 1024 * 1024
     partition_id: Optional[int] = None
-    codec: Optional[int] = None
-    codec_autoselect: bool = True
     auto_seqno: bool = True
     auto_created_at: bool = True
-    get_last_seqno: bool = False
-    retry_policy: Optional["RetryPolicy"] = None
-    update_token_interval: Union[int, float] = 3600
+    # get_last_seqno: bool = False
+    # encoders: Union[Mapping[int, Callable[[bytes], bytes]], None] = None
+    # serializer: Union[Callable[[Any], bytes], None] = None
+    # send_buffer_count: Optional[int] = 10000
+    # send_buffer_bytes: Optional[int] = 100 * 1024 * 1024
+    # codec: Optional[int] = None
+    # codec_autoselect: bool = True
+    # retry_policy: Optional["RetryPolicy"] = None
+    # update_token_interval: Union[int, float] = 3600
+
+    def __post_init__(self):
+        if self.producer_id is None:
+            self.producer_id = uuid.uuid4().hex
 
 
 @dataclass
@@ -55,18 +66,16 @@ def __init__(self, settings: PublicWriterSettings):
     def create_init_request(self) -> StreamWriteMessage.InitRequest:
         return StreamWriteMessage.InitRequest(
             path=self.topic,
-            producer_id=self.producer_and_message_group_id,
+            producer_id=self.producer_id,
             write_session_meta=self.session_metadata,
             partitioning=self.get_partitioning(),
-            get_last_seq_no=self.get_last_seqno,
+            get_last_seq_no=True,
         )
 
     def get_partitioning(self) -> StreamWriteMessage.PartitioningType:
         if self.partition_id is not None:
             return StreamWriteMessage.PartitioningPartitionID(self.partition_id)
-        return StreamWriteMessage.PartitioningMessageGroupID(
-            self.producer_and_message_group_id
-        )
+        return StreamWriteMessage.PartitioningMessageGroupID(self.producer_id)
 
 
 class SendMode(Enum):

ydb/_topic_writer/topic_writer_asyncio_test.py

@@ -238,7 +238,7 @@ def default_settings(self) -> WriterSettings:
         return WriterSettings(
             PublicWriterSettings(
                 topic="/local/topic",
-                producer_and_message_group_id="test-producer",
+                producer_id="test-producer",
                 auto_seqno=False,
                 auto_created_at=False,
             )
@@ -487,7 +487,7 @@ async def close(self):
     def default_settings(self) -> PublicWriterSettings:
         return PublicWriterSettings(
             topic="/local/topic",
-            producer_and_message_group_id="producer-id",
+            producer_id="producer-id",
         )
 
     @pytest.fixture(autouse=True)

ydb/topic.py

@@ -1,5 +1,5 @@
 import datetime
-from typing import List, Callable, Union, Mapping, Any, Optional, Dict
+from typing import List, Union, Mapping, Optional, Dict
 
 from . import aio, Credentials, _apis
 
@@ -143,19 +143,11 @@ def writer(
         self,
         topic,
         *,
-        producer_and_message_group_id: str,
+        producer_id: Optional[str] = None,  # default - random
         session_metadata: Mapping[str, str] = None,
-        encoders: Union[Mapping[int, Callable[[bytes], bytes]], None] = None,
-        serializer: Union[Callable[[Any], bytes], None] = None,
-        send_buffer_count: Union[int, None] = 10000,
-        send_buffer_bytes: Union[int, None] = 100 * 1024 * 1024,
         partition_id: Union[int, None] = None,
-        codec: Union[int, None] = None,
-        codec_autoselect: bool = True,
         auto_seqno: bool = True,
         auto_created_at: bool = True,
-        get_last_seqno: bool = False,
-        retry_policy: Union["TopicWriterRetryPolicy", None] = None,
     ) -> TopicWriterAsyncIO:
         args = locals()
         del args["self"]
@@ -265,19 +257,12 @@ def reader(
     def writer(
         self,
         topic,
-        producer_and_message_group_id: str,
+        *,
+        producer_id: Optional[str] = None,  # default - random
         session_metadata: Mapping[str, str] = None,
-        encoders: Union[Mapping[int, Callable[[bytes], bytes]], None] = None,
-        serializer: Union[Callable[[Any], bytes], None] = None,
-        send_buffer_count: Union[int, None] = 10000,
-        send_buffer_bytes: Union[int, None] = 100 * 1024 * 1024,
         partition_id: Union[int, None] = None,
-        codec: Union[int, None] = None,
-        codec_autoselect: bool = True,
         auto_seqno: bool = True,
         auto_created_at: bool = True,
-        get_last_seqno: bool = False,
-        retry_policy: Union["TopicWriterRetryPolicy", None] = None,
     ) -> TopicWriter:
         args = locals()
         del args["self"]