package com.test;

import java.nio.ByteBuffer;

import com.amazonaws.auth.AWSCredentials;
import com.amazonaws.auth.BasicAWSCredentials;
import com.amazonaws.services.kinesis.AmazonKinesisClient;
import com.amazonaws.services.kinesis.model.PutRecordRequest;
import com.amazonaws.services.kinesis.model.PutRecordResult;

public class PutDataExample {

  AmazonKinesisClient kinesisClient;

  PutDataExample() {
    String accessKey = "test";
    String secretKey = "test";
    AWSCredentials credentials = new BasicAWSCredentials(accessKey, secretKey);
    kinesisClient = new AmazonKinesisClient(credentials);
    kinesisClient.setEndpoint("http://localhost:4566", "kinesis", "us-east-1");
    System.out.println("starting the PutDataExample Application");
  }

  public void putData(String fileContent, String session) throws Exception {
    final String myStreamName = "test";

    PutRecordRequest putRecordRequest = new PutRecordRequest();
    putRecordRequest.setStreamName(myStreamName);
    String putData = fileContent;
    putRecordRequest.setData(ByteBuffer.wrap(putData.getBytes()));
    putRecordRequest.setPartitionKey("session" + session);
    PutRecordResult putRecordResult = kinesisClient.putRecord(putRecordRequest);
    System.out.println("Put Record Successful, partition key : " + putRecordRequest.getPartitionKey() + ", ShardID : " + putRecordResult.getShardId());
    System.out.println(fileContent);
    System.out.println("Sequence Number: " + putRecordResult.getSequenceNumber());

  }

  public static void main(String[] args) throws Exception {
    new PutDataExample().putData("User has logged in successfully", "s1");
    new PutDataExample().putData("User started to bet ", "s2");
    new PutDataExample().putData("User has logged out", "s3");
    new PutDataExample().putData("User has exit from the system", "s4");
  }
}

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
   <modelVersion>4.0.0</modelVersion>
   <groupId>com.test.</groupId>
   <artifactId>my-app</artifactId>
   <version>1.0-SNAPSHOT</version>
   <properties>
      <maven.compiler.source>1.7</maven.compiler.source>
      <maven.compiler.target>1.7</maven.compiler.target>
   </properties>
   <dependencies>
      <dependency>
         <groupId>software.amazon.kinesis</groupId>
         <artifactId>amazon-kinesis-client</artifactId>
         <version>2.3.3</version>
      </dependency>
      <dependency>
         <groupId>com.amazonaws</groupId>
         <artifactId>aws-java-sdk</artifactId>
         <version>1.11.954</version>
      </dependency>
      <dependency>
         <groupId>com.amazonaws</groupId>
         <artifactId>aws-java-sdk-core</artifactId>
         <version>1.11.954</version>
      </dependency>
      <dependency>
         <groupId>software.amazon.awssdk</groupId>
         <artifactId>kinesis</artifactId>
         <version>2.15.81</version>
      </dependency>
   </dependencies>
   <build>
      <plugins>
         <plugin>
            <artifactId>maven-assembly-plugin</artifactId>
            <configuration>
               <archive>
                  <manifest>
                     <mainClass>com.test.PutDataExample</mainClass>
                  </manifest>
               </archive>
               <descriptorRefs>
                  <descriptorRef>jar-with-dependencies</descriptorRef>
               </descriptorRefs>
            </configuration>
         </plugin>
      </plugins>
   </build>
</project>

awslocal kinesis create-stream --stream-name test --shard-count 1

awslocal kinesis get-shard-iterator --stream-name test --shard-id shardId-000000000000 --shard-iterator-type TRIM_HORIZON

import base64
import boto3
import json
import random
import calendar
from datetime import datetime

thing_id = 'aa-bb'

payload = {
            'prop': str(random.randint(40, 120)),
            'timestamp': calendar.timegm(datetime.utcnow().timetuple()),
            'thing_id': thing_id
          }

client = boto3.client('kinesis', region_name='us-east-1', endpoint_url='http://localhost:4566', aws_access_key_id='test', aws_secret_access_key='test')

response = client.put_record(
  StreamName='test',
  Data=base64.b64encode(json.dumps(payload).encode('utf-8')),
  PartitionKey=thing_id
)

awslocal kinesis get-records --shard-iterator  $SHARD_ITERATOR_STR

{
    "Records": [
        {
            "SequenceNumber": "49615513957620404616321850166192823801450482321451909122",
            "ApproximateArrivalTimestamp": "2021-02-14T21:12:49+01:00",
            "Data": "User has logged in successfully",
            "PartitionKey": "sessions1"
        },
        {
            "SequenceNumber": "49615513957620404616321850166194032727270096950626615298",
            "ApproximateArrivalTimestamp": "2021-02-14T21:12:49+01:00",
            "Data": "User started to bet ",
            "PartitionKey": "sessions2"
        },
        {
            "SequenceNumber": "49615513957620404616321850166195241653089711579801321474",
            "ApproximateArrivalTimestamp": "2021-02-14T21:12:49+01:00",
            "Data": "User has logged out",
            "PartitionKey": "sessions3"
        },
        {
            "SequenceNumber": "49615513957620404616321850166196450578909326208976027650",
            "ApproximateArrivalTimestamp": "2021-02-14T21:12:49+01:00",
            "Data": "User has exit from the system",
            "PartitionKey": "sessions4"
        },
        {
            "SequenceNumber": "49615513957620404616321850166197659504728943793088233474",
            "ApproximateArrivalTimestamp": "2021-02-14T21:13:32+01:00",
            "Data": "ZXlKd2NtOXdJam9nSWpjM0lpd2dJblJwYldWemRHRnRjQ0k2SURFMk1UTXpNek0yTURZc0lDSjBhR2x1WjE5cFpDSTZJQ0poWVMxaVlpSjk=",
            "PartitionKey": "aa-bb"
        }
    ],
    "NextShardIterator": "AAAAAAAAAAGpB9vwvdjBrklL9AR2RkFT9BdOh2yW52J2DEfzTDDzgbACyaLBJy2Vwkj6Uc4YoeGpxHiljGK5/YMh63MEQEwFxEKDND0AJckZZFlHaRnjYU4uOPZf7ade7fsU1ype77b7QQSzLrjFnmWqP+qZMOn3CmJpIIsin0QhSZT01rdUwk89qJ1JTDVL41zSUjEneEk=",
    "MillisBehindLatest": 0
}