Update README.md

README.md

@@ -22,7 +22,7 @@ client. It integrates effortlessly with ZIO and ZIO Streams.
 Add the following dependencies to your `build.sbt` file:
 ```
 libraryDependencies ++= Seq(
-  "dev.zio" %% "zio-streams" % "1.0.0-RC18-2",
+  "dev.zio" %% "zio-streams" % "1.0.0-RC19",
   "dev.zio" %% "zio-kafka"   % "<version>"
 )
 ```
@@ -97,7 +97,6 @@ import zio.kafka.consumer._
 
 Consumer.subscribeAnd(Subscription.topics("topic150"))
   .plainStream(Serde.string, Serde.string)
-  .flattenChunks
   .tap(cr => putStrLn(s"key: ${cr.record.key}, value: ${cr.record.value}"))
   .map(_.offset)
   .aggregateAsync(Consumer.offsetBatches)
@@ -115,7 +114,7 @@ import zio.kafka.consumer._
 Consumer.subscribeAnd(Subscription.topics("topic150"))
   .partitionedStream(Serde.string, Serde.string)
   .tap(tpAndStr => putStrLn(s"topic: ${tpAndStr._1.topic}, partition: ${tpAndStr._1.partition}"))
-  .flatMap(_._2.flattenChunks)
+  .flatMap(_._2)
   .tap(cr => putStrLn(s"key: ${cr.record.key}, value: ${cr.record.value}"))
   .map(_.offset)
   .aggregateAsync(Consumer.offsetBatches)
@@ -152,12 +151,11 @@ val consumeProduceStream = Consumer
     val producerRecord: ProducerRecord[Int, String] = new ProducerRecord("my-output-topic", key, newValue)
     (producerRecord, record.offset)
   }
-  .chunks
-  .mapM { chunk =>
+  .mapChunksM { chunk =>
     val records     = chunk.map(_._1)
     val offsetBatch = OffsetBatch(chunk.map(_._2).toSeq)
 
-    Producer.produceChunk[Any, Int, String](records) *> offsetBatch.commit
+    Producer.produceChunk[Any, Int, String](records) *> offsetBatch.commit.as(Chunk(()))
   }
   .runDrain
   .provideSomeLayer(consumerAndProducer)
@@ -228,7 +226,6 @@ stream
         ZIO.succeed(offset)
     }
   }
-  .flattenChunks
   .aggregateAsync(Consumer.offsetBatches)
   .mapM(_.commit)
   .runDrain