Bash function to help save typing when invoking Serverless service functions from the command line

invoke.sh

# Invoke serverless service
invoke() { 
    #
    # Usage:
    # $ invoke stage function_name [payload_name]
    #
    if [ "${1}" == "local" ]; then
        stage="local"
    else
        stage="-s ${1}"
    fi

    payloads_dir="tests/payloads/"
    if [ -z $3 ]; then
        payload="${payloads_dir}${2}/default.json"
    else
        payload="${payloads_dir}${2}/${3}.json"
    fi

    if [ ! -f "${payload}" ]; then
        echo $payload
        echo "Payload does not exist."
        return 1
    fi

    time --format='%e seconds' serverless invoke $stage -f $2 -p $payload
}