Queries the information about a function.

Request headers

This operation uses only common request headers. For more information, see Common parameters.

Request syntax

GET /services/{serviceName.qualifier}/functions/{functionName}

Request parameters

Parameter Type Position Required Example Description
serviceName String Path Yes service_name

The name of the service.
qualifier String Path No test

The version or alias of the service.
functionName String Path Yes function_name

The name of the function.

Response parameters

Parameter Type Example Description
ETag String function_name

The value used to ensure that the modified function is consistent with the function to be modified.

codeChecksum String 2825179536350****

The CRC-64 value of the function code package.
codeSize Long 421

The size of the function code package. Unit: byte.
createdTime String 2020-04-01T08:15:27Z

The time when the function was created.
description String test_description

The description of the function.
environmentVariables Map

The environment variables configured for the function. The values of the environment variables are obtained from the function. For more information, see Introduction.

functionId String aa715851-1c20-4b89-a8fb-***

The ID generated by the system for the function. Each function ID is unique in Function Compute.

functionName String function_name

The name of the function.
handler String index.handler

The handler of the function. For more information, see the "Function entry point" section of the Terms topic.

lastModifiedTime Long 2020-04-01T08:15:27Z

The last time when the function was updated.
memorySize Integer 256

The memory size for the function. Unit: MB. The memory size must be a multiple of 64 MB. Different types of instances are allocated different memory sizes. For more information, see the "Instance specifications" section of the Instance specifications and usage modes topic.

runtime String python3

The runtime environment of the function. Valid values: nodejs4.4, nodejs6, nodejs8, nodejs10, nodejs12, python2.7, python3, java8, java11, php7.2, dotnetcore2.1, custom, and custom-container.

timeout Integer 60

The timeout period for the execution of the function. Unit: seconds. Default value: 60. Valid values: 1 to 600. When this period expires, the execution of the function is terminated.

initializationTimeout Integer 60

The timeout period for the execution of the initializer function. Unit: seconds. Default value: 3. Valid values: 1 to 300. When this period expires, the execution of the initializer function is terminated.

initializer String index.handler

The handler of the initializer function. The format is determined by the programming language. For more information, see the "Initializer function" section of the Terms topic.

caPort Integer 9000

The port on which the HTTP server listens for the custom runtime or custom container runtime.

customContainerConfig CustomContainerConfigInfo

The configuration of the custom container runtime. After you configure the custom container runtime, you can use custom container images to execute functions.

Examples

Sample requests

GET /2016-08-15/services/service_name/functions/function_name HTTP/1.1
Common request headers

Sample success responses

JSON format 

HTTP/1.1 200
ETag:function_name
Content-Type:application/json
HTTP/1.1 200 OK
Common response headers
{
  "functionId": "aa715851-1c20-4b89-a8fb-***",
  "functionName": "function_name",
  "description": "test_description",
  "runtime": "python3",
  "handler": "index.handler",
  "timeout": 60,
  "cAPort": 9000,
  "initializer": "index.handler",
  "initializationTimeout": 60,
  "codeSize": 421,
  "codeChecksum": "2825179536350****",
  "memorySize": 256,
  "customContainerConfig": {
    "image": "registry-vpc.cn-hangzhou.aliyuncs.com/fc-demo/helloworld:v1beta1,
    "command": "["/code/myserver"]",
    "args": "["-arg1", "value1"]",
    "accelerationType": Default
  },
  "environmentVariables": {
    "testKey": "TEST_KEY"
  },
  "createdTime": "2020-04-01T08:15:27Z",
  "lastModifiedTime": "2020-04-01T08:15:27Z",
  "instanceConcurrency": 1
}