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Apache Kafka® Quick Start

The guide below demonstrates how to quickly get started with Apache Kafka. You'll connect to a broker, create a topic, produce some messages, and consume them. Be sure to also check out the client code examples to learn more.

Confluent Cloud

1. Sign up for Confluent Cloud

First, install the Confluent CLI by navigating to a directory in which to install it and running:

curl -sL --http1.1 https://cnfl.io/cli | sh -s -- latest

Next, sign up for a free Confluent Cloud account by entering the command below and following the prompts:

confluent cloud-signup

2. Create a Kafka cluster

Create a Basic Kafka cluster by entering the following command, where <provider> is one of aws, azure, or gcp, and <region> is a region ID available in the cloud provider you choose. You can view the available regions for a given cloud provider by running confluent kafka region list --cloud <provider>.

confluent kafka cluster create quickstart --cloud <provider> --region <region>

For example:

confluent kafka cluster create quickstart --cloud aws --region us-east-1
confluent kafka cluster create quickstart --cloud azure --region eastus
confluent kafka cluster create quickstart --cloud gcp --region us-east1

3. Wait for cluster to be running

It may take a few minutes for the cluster to be created. Validate that the cluster is running by ensuring that its Status is Up when you run the following command:

confluent kafka cluster list

For example:

confluent kafka cluster list
       Id      |    Name    | Type  | Provider |   Region    | Availability | Status
---------------+------------+-------+----------+-------------+--------------+---------
    lkc-123456 | quickstart | BASIC | gcp      | us-east1    | single-zone  | UP

4. Set active cluster

Make your cluster active in the CLI so that you don't need to specify it in later commands:

confluent kafka cluster use <cluster ID>

For example:

confluent kafka cluster use lkc-123456
Set Kafka cluster "lkc-123456" as the active cluster for environment "env-123456".

5. Create a topic

Create a topic named quickstart that has 1 partition:

confluent kafka topic create quickstart --partitions 1

6. Create an API key

Create an API key for the cluster that you will use to produce and consume messages:

confluent api-key create --resource <cluster ID>

Then set it as the active API key so that you don't need to specify the API key and secret on the command line when producing and consuming messages:

confluent api-key use <API key> --resource <cluster ID>

7. Produce a message to the topic

Produce a message to the quickstart topic:

confluent kafka topic produce quickstart

Enter the message hello world and then enter Ctrl-C or Ctrl-D to exit:

Starting Kafka Producer. Use Ctrl-C or Ctrl-D to exit.
hello world
^C

8. Consume the message from the topic

Now consume the message that you just produced:

confluent kafka topic consume quickstart --from-beginning

What's Next

  • Build Apps
  • Build Pipelines
  • Operate
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  • Select a value
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  • Operate

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