Step 2.1: Create the deployment package - Amazon ElastiCache
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Step 2.1: Create the deployment package

Currently the example code for the Lambda function is only supplied in Python.


The following example Python code reads and writes an item to your ElastiCache cluster. Copy the code and save it into a file named Be sure to replace the elasticache_config_endpoint value in the code with the endpoint address you copied in step 1.

import uuid import ssl from pymemcache.client.base import Client elasticache_config_endpoint = "" target_port = 11211 context = ssl.create_default_context() memcached_client = Client((elasticache_config_endpoint, target_port), tls_context=context) def lambda_handler(event, context): # create a random UUID - this will be the sample element we add to the cache uuid_in = uuid.uuid4().hex # put the UUID to the cache memcached_client.set("uuid", uuid_in, expire=500, noreply=False) # get the item (UUID) from the cache result = memcached_client.get("uuid") decoded_result = result.decode("utf-8") # check the retrieved item matches the item added to the cache and print # the results if decoded_result == uuid_in: print(f"Success: Inserted {uuid_in}. Fetched {decoded_result} from Memcached.") else: raise Exception(f"Bad value retrieved. Expected {uuid_in}, got {decoded_result}") return "Fetched value from Memcached"

This code uses the Python pymemcache library to put items into your cache and retrieve them. To create a deployment package containing pymemcache, carry out the following steps.

  1. In your project directory containing the source code file, create a folder package to install the pymemacache library into.

    mkdir package
  2. Install pymemcache using pip.

    pip install --target ./package pymemcache
  3. Create a .zip file containing the pymemcache library. In Linux and macOS, run the following command. In Windows, use your preferred zip utility to create a .zip file with the pymemache library at the root.

    cd package zip -r ../ .
  4. Add your function code to the .zip file. In Linux and macOS, run the following command. In Windows, use your preferred zip utility to add to the root of your .zip file.

    cd .. zip

Next Step

Step 2.2: Create the IAM role (execution role)