V2.1 Invoke Service¶

Service invocation API for the device.

This API is available in EnOS 2.1.0 and above.

This API can execute cached commands or instant commands. When executing instant commands, the API response data is returned after the device returns the service invocation results. If the device does not return the service invocation results within the specified service execution timeout period, the EnOS service invocation will wait for the timeout and then return the response data.

When executing cached commands, the data will be returned directly after being cached.

Operation Permissions¶

Before invoking this API, ensure that the service account has been authorized the policy that includes the following service(s) and action permission(s). For how to authorize the service account, see Managing Service Accounts.

Required Service	Required Operation Permission
Asset	Control

Request Format¶

POST https://{apigw-address}/connect-service/v2.1/commands?action=invokeService

Request Parameters (URI)¶

Note

Use one of the following methods to specify the device:

Include assetId in the request
Include productKey + deviceKey in the request

Name	Location (Path/Query)	Mandatory/Optional	Data Type	Description
orgId	Query	Mandatory	String	The organization ID which the asset belongs to. How to get orgId>>
assetId	Query	Optional (See Note above)	String	The asset ID. How to get assetId>>
productKey	Query	Optional (See Note above)	String	The product key. To be used with `deviceKey`.
deviceKey	Query	Optional (See Note above)	String	The device key. To be used with `productKey`.
serviceId	Query	Mandatory	String	The ID of the invoked service.
pendingTtl	Query	Optional	Integer	The cache storage time. Its unit is seconds and its range is [0 - 172800 (i.e. 48 hours)], which is 0 by default. If the pendingTtl is 0, it indicates that the commands will be executed immediately.
timeout	Query	Optional	Integer	The timeout period of the service execution in seconds. Its range is [1-60] with a default value of 30 seconds.

Request Parameters (Body)¶

Name Mandatory/Optional Data Type Description

inputData

Optional

Map (Key is of String type and the Value is of String, Number, Array or Object type)

The input parameter for service invocation. The key is the parameter identifier, and the value data type will be as per defined in the ThingModel.

If the input parameter’s value is marked as required in the ThingModel, the default value defined in the ThingModel will be used if value is null. If there is no default value, an error will be returned.

Response Parameters¶

Name	Data Type	Description
data	Service Invocation Return Struct	The service invocation results. For details, see Service Invocation Return Struct.

Service Invocation Return Struct ¶

Name	Data Type	Description
commandId	String	The command ID.
outputData	Map (Key is of String type and the Value is of String, Number, Array or Object type)	If the request’s pendingTtl is 0 (i.e. the requested commands are executed immediately), the device service invocation results are returned, where the value data type will be as per defined in the `ThingModel`. If the request’s `pendingTtl` is not 0 (i.e. the requested commands are cached for execution later), this parameter will not be returned.

Error Codes¶

For the description of error codes, see Error Codes.

Samples¶

Request Sample¶

url: https://{apigw-address}/connect-service/v2.1/commands?action=invokeService&deviceKey=yourDeviceKey&pendingTtl=1000&productKey=yourProductKey&serviceId=identifier&orgId=yourOrgId&timeout=30
method: POST
requestBody:
{
  "inputData":{
    "canshu2":22.2,
    "canshu1":11
  }
}

Return Sample¶

{
    "code": 0,
    "msg": "Success",
    "submsg": null,
    "requestId": "7d863d517eae4f18a2776452eb1305bb",
    "data": {
        "commandId": "2078724684846989312",
        "outputData": {
        }
    }
}

SDK Samples¶

You can access the SDK samples for Connection Service on GitHub:

Java
Python