Using a CTS Trigger

Prerequisites

Creating a CTS Trigger

1. Log in to the FunctionGraph console, and choose Functions > Function List in the navigation pane.
2. Click Create Function.
3. Set the following parameters:
   • Template: Select Create from scratch.
   • Function Name: Enter a function name, for example, HelloWorld.
   • Enterprise Project: Select default.
   • Agency: Select Use no agency.
   • Runtime: Select Python 2.7.

4. Click Create Now.
5. On the Code tab page, copy the following code to the code window and click Deploy.

   # -*- coding:utf-8 -*-
   '''
   CTS trigger event:
   {
     "cts":  {
           "time": "",
           "user": {
               "name": "userName",
               "id": "",
               "domain": {
                   "name": "domainName",
                   "id": ""
               }
           },
           "request": {},
           "response": {},
           "code": 204,
           "service_type": "FunctionGraph",
           "resource_type": "",
           "resource_name": "",
           "resource_id": {},
           "trace_name": "",
           "trace_type": "ConsoleAction",
           "record_time": "",
           "trace_id": "",
           "trace_status": "normal"
       }
   }
   '''
   def handler (event, context):
       trace_name = event["cts"]["resource_name"]
       timeinfo = event["cts"]["time"]
       print(timeinfo+' '+trace_name)
   
   

6. Choose Configuration > Triggers and click Create Trigger.
7. Configure the trigger information.

   Table 1 Trigger information

   Parameter	Description
   Trigger Type	Select Cloud Trace Service (CTS).
   Notification Name	Enter a notification name, for example, Test.
   Service Type	Select FunctionGraph.
   Resource Type	Resource types supported by the selected service, such as triggers, instances, and functions.
   Trace Name	Operations that can be performed on the selected resource type, such as creating or deleting a trigger.

   Note

   A maximum of 10 services, each with up to 10 operations, can be added for each CTS trigger. The total number of operations cannot exceed 100. For details, see Supported Services and Operation Lists.

8. Click OK.

Configuring a CTS Event to Trigger the Function

1. On the function details page, click the Code tab and select Configure Test Event.
2. Set the parameters described in Table 2 and click Save.

   Table 2 Test event information

   Parameter	Description
   Configure Test Event	You can choose to create a test event or edit an existing one. Use the default option Create new test event.
   Event Template	Select Cloud Trace Service (CTS) and use the built-in CTS event template.
   Event Name	Enter an event name, for example, cts-test.
   Event data	The system automatically loads the event data in the CTS event template. You can modify the event data as required.

3. Click Test.