Step 3: Test the Lambda function

In this step, you invoke the Lambda function manually using the invoke command. When the Lambda function executes, it generates a UUID and writes it to the ElastiCache cluster that you specified in your Lambda code. The Lambda function then retrieves the item from the cache.

1. Invoke the Lambda function (AccessMemCache) using the AWS Lambda invoke command.

   For Linux, macOS, or Unix:

   aws lambda invoke \
   --function-name AccessMemCache  \
   --region us-east-1 \
   --profile adminuser \
   output.txt  

   For Windows:

   aws lambda invoke ^
   --function-name AccessMemCache  ^
   --region us-east-1 ^
   --profile adminuser ^
   output.txt  

2. Verify that the Lambda function executed successfully as follows:

   • Review the output.txt file.

   • Review the results in the AWS Lambda console.

   • Verify the results in CloudWatch Logs.