# Basic Ingest Python with CloudFormation ## What is this function? This function is similar to the Hello World functions but rather than publish the Hello World messages on a topic in IoT Core it publishes them to a reserved topic which routes them to a rule via basic ingest. The CloudFormation creates the rule used for basic ingest. The messages from the core look like this: ```json { "message": "Basic ingest received from AWS_GREENGRASS_GROUP_NAME" } ``` Where `AWS_GREENGRASS_GROUP_NAME` is the name of each group. The messages after the rule has processed them go on the `greengrass_basic_ingest` topic and look like this: ```json { "message": "Basic ingest received from AWS_GREENGRASS_GROUP_NAME", "processed_by_basic_ingest": "yes" } ```