# Amazon MSK examples using SDK for Ruby
<a name="ruby_kafka_code_examples"></a>

The following code examples show you how to perform actions and implement common scenarios by using the AWS SDK for Ruby with Amazon MSK.

Each example includes a link to the complete source code, where you can find instructions on how to set up and run the code in context.

**Topics**
+ [Serverless examples](#serverless_examples)

## Serverless examples
<a name="serverless_examples"></a>

### Invoke a Lambda function from an Amazon MSK trigger
<a name="serverless_MSK_Lambda_ruby_topic"></a>

The following code example shows how to implement a Lambda function that receives an event triggered by receiving records from an Amazon MSK cluster. The function retrieves the MSK payload and logs the record contents.

**SDK for Ruby**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [Serverless examples](https://github.com/aws-samples/serverless-snippets/tree/main/integration-msk-to-lambda) repository. 
Consuming an Amazon MSK event with Lambda using Ruby.  

```
require 'base64'

def lambda_handler(event:, context:)
  # Iterate through keys
  event['records'].each do |key, records|
    puts "Key: #{key}"

    # Iterate through records
    records.each do |record|
      puts "Record: #{record}"

      # Decode base64
      msg = Base64.decode64(record['value'])
      puts "Message: #{msg}"
    end
  end
end
```