Related Services

Table 1 describes the cloud services that have been interconnected with FunctionGraph.

**Table 1** Interconnected services
Service	Function
SMN	FunctionGraph functions are constructed to process SMN notifications. For details, see .
API Gateway	FunctionGraph functions are invoked over HTTPS by defining REST APIs with specified backend services.
OBS	FunctionGraph functions are created to process OBS bucket events, such as object creation or deletion events. For example, when an image is uploaded to the specified bucket, OBS invokes the function to read the image and create a thumbnail.
LTS	FunctionGraph functions are built to process logs subscribed to in LTS. When LTS collects subscribed logs, the function is triggered to process or analyze the logs or to load the logs to other systems.
CTS	FunctionGraph functions are defined to analyze and process key information in logs according to the event notifications of specified service type and operations configured in CTS. With CTS, you can record operations associated with FunctionGraph for later query, audit, and backtrack operations. Table 2 lists the FunctionGraph operations that can be recorded by CTS. CTS starts recording operations on cloud resources once being enabled. View traces of the last seven days on the CTS console.
DDS	DDS triggers trigger FunctionGraph functions upon a table change in the database.
Cloud Eye	FunctionGraph is interconnected with Cloud Eye to report monitoring metrics, allowing you to view function metrics and alarm messages through Cloud Eye.
VPC	Functions can be configured to access resources in Virtual Private Clouds (VPCs) or to access the Internet through source network address translation (SNAT) by binding elastic IP addresses.

**Table 2** FunctionGraph operations that can be recorded by CTS
Operation	Resource Type	Trace Name
Creating a function	Function	CreateFunction
Deleting a function	Function	DeleteFunction
Modifying function information	Function	ModifyFunctionMetadata
Publishing a function version	Function version	PublishFunctionVersion
Deleting a function alias	Function version alias	DeleteVersionAlias
Deleting a function trigger	Trigger	DeleteTrigger
Creating a function trigger	Trigger	CreateTrigger
Disabling a function trigger	Trigger	DisabledTrigger
Enabling a function trigger	Trigger	enabledTrigger