You can call this operation to create a function.

Request headers

This operation uses common request headers and special request headers. The following table describes the special request header. For more information about common request headers, see Common parameters.

Parameter Type Required Example Description
X-Fc-Code-Checksum String No 5434025278388143772>

The CRC-64 value of the function code package.

Request syntax

POST /services/{serviceName}/functions HTTP/1.1

Request parameters

Parameter Type Position Required Example Description
serviceName String Path Yes service_name

The name of the service.
Object Body No

The definition of the function.
code Code Body No

The code of the function. The code must be packaged into a ZIP file.
customContainerConfig CustomContainerConfig Body No

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

description String Body No test_description

The description of the function.
functionName String Body Yes function_name

The name of the function.
handler String Body Yes index.handler

The handler of the function. The format is determined by the programming language. For more information, see Function handlers.

initializationTimeout Integer Body No 30

The timeout period for Function Compute to run 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 Body No index.initializer

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

memorySize Integer Body No 256

The memory size of the function. Unit: MB. The memory size must be a multiple of 64 MB. Instance types have different memory specifications. For more information, see Instance types.

runtime String Body No 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 Body No 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.

caPort Integer Body No 9000

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

Function code packages can be provided in the following two methods. You must use only one of the methods in a single request.

  • Specify the names of the Object Storage Service (OSS) bucket and object where the code package is stored.
  • Specify that the zipFile parameter is used as the Base64-encoded content of the ZIP file.

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.
customContainerConfig CustomContainerConfig

The runtime configuration of the custom container. If this parameter is specified for a function, you can use a custom container image to run the function.

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 Overview.

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

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

functionName String function_name

The name of the function.
handler String index.handler

Instance types have different memory specifications. For more information, see Instance types.

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. Instance types have different memory specifications. For more information, see Instance types.

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

Instance types have different memory specifications. For more information, see Instance types.

caPort Integer 9000

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

Examples

Sample requests

POST /2016-08-15/services/service_name/functions HTTP/1.1
Common request headers
{
    "functionName":"function_name",
    "runtime":"python3",
    "handler":"index.handler",
    "caPort":9000,
    "customContainerConfig": {
      "image": "registry-vpc.cn-hangzhou.aliyuncs.com/fc-demo/helloworld:v1beta1,
      "command": "["/code/myserver"]",
      "args": "["-arg1", "value1"]",
      "accelerationType": Default
    },
    "code":{
        "zipFile":"samplecode"
    },
    "memorySize":256,
    "timeout":60,
    "initializationTimeout":30,
    "environmentVariables":{
        "testKey":"TEST_KEY"
    }
}

Sample success responses

JSON format 

HTTP/1.1 200 OK
Content-Type:application/json

{
  "functionId": "aa715851-1c20-4b89-a8fb-***",
  "functionName": "function_name",
  "description": "test_description",
  "runtime": "python3",
  "handler": "index.handler",
  "timeout": 60,
  "initializer": "index.handler",
  "initializationTimeout": 30,
  "codeSize": 421,
  "caPort": 9000,
  "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
}