Load all SSM parameters on a path into your environment

load_ssm_params.sh

PARAMS_LIST=$(aws ssm get-parameters-by-path \
        --path "/var/path/" \
        --recursive \
        --query 'Parameters[*].[Name, Value]' \
        --output text \
        --with-decryption)

#   "/var/path/VARNAME variable_value" --> "export VARNAME=variable_value"
EXPORT_STATEMENTS=$(echo "$PARAMS_LIST" | awk '{ sub(".*/", "", $1); printf("export %s=\"%s\"\n", $1, $2) }')

eval "$EXPORT_STATEMENTS"

Life saver!