def getAllMysfits()

in workshop-3/app/monolith-service/service/mysfitsTableClient.py [0:0]

• 16 lines of code
• 7 McCabe index (conditional complexity)

def getAllMysfits():

    # Retrieve all Mysfits from DynamoDB using the DynamoDB scan operation.
    # Note: The scan API can be expensive in terms of latency when a DynamoDB
    # table contains a high number of records and filters are applied to the
    # operation that require a large amount of data to be scanned in the table
    # before a response is returned by DynamoDB. For high-volume tables that
    # receive many requests, it is common to store the result of frequent/common
    # scan operations in an in-memory cache. DynamoDB Accelerator (DAX) or
    # use of ElastiCache can provide these benefits. But, because out Mythical
    # Mysfits API is low traffic and the table is very small, the scan operation
    # will suit our needs for this workshop.
    response = client.scan(
        TableName=table_name
    )

    logging.info(response["Items"])

    # loop through the returned mysfits and add their attributes to a new dict
    # that matches the JSON response structure expected by the frontend.
    mysfitList = defaultdict(list)
    for item in response["Items"]:
        mysfit = {}
        mysfit["mysfitId"] = item["MysfitId"]["S"]
        mysfit["name"] = item["Name"]["S"]
        mysfit["goodevil"] = item["GoodEvil"]["S"]
        mysfit["lawchaos"] = item["LawChaos"]["S"]
        mysfit["species"] = item["Species"]["S"]
        mysfit["thumbImageUri"] = item["ThumbImageUri"]["S"]
        mysfitList["mysfits"].append(mysfit)

    # convert the create list of dicts in to JSON
    return json.dumps(mysfitList)