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Fulfillment is code that is deployed as a webhook that lets you generate
dynamic responses for every type of
smart home intent.
During a user conversation with Google Assistant, fulfillment
allows you to use the information extracted by Google's natural language
processing to generate dynamic responses or trigger actions on your back-end
such as turning on a light.
Your fulfillment receives requests from Assistant,
processes the request and responds. This back-and-forth request and response
process drives the conversation forward until you eventually fulfill the
initial user request.
In most cases, a user would have a simple smart home
interaction with Assistant such as
Hey Google, turn on my light. However, if you implement
secondary user verification,
your fulfillment might have to process multiple requests and responses as
Assistant might ask for a confirmation PIN after a
specific user request such as Hey Google, unlock my front door.
Figure 1 shows a successful fulfillment and execution of a
smart homeEXECUTE intent.
Figure 1: A successful developer cloud execution path