Search Thing Model¶

Search models based on expressions or on the relationship between models.

If you need to invoke this API after Update Thing Model API, it is recommended to wait for about 2 seconds to avoid obtaining unupdated data.

Operation Permissions¶

Ensure that you have obtained the permission to call this API. For more information, see Getting API Calling Permissions.

Request Format¶

POST https://{apigw-address}/model-service/v2.2/thing-models?action=search

Request Parameters (URI)¶

Name	Location (Path/Query)	Required/Optional	Data Type	Description
orgId	Query	Required	String	The OU ID which the model belongs to. How to get orgId>>
scope	Query	Optional	Integer	0: Only search from the OU specified by the `orgId`. 1 (default): Search from the OU specified by the `orgId` as well as the OUs with shared models. 2: Only search from shared models.

Request Parameters (Body)¶

Name	Required/Optional	Data Type	Description
expression	Optional	String	The query expression, which supports sql-like query. Supports using both `expression` and `relationFilter` for searching. The fields that are supported for query include: `modelId`, `tags`, `attribute_tags`, `measurepoint_tags`, and `service_tags`. Supports fuzzy query and logical operators “and” and “or”. How to use expression>> `modelId`: supports arithmetic operator “in” and “like”. `modelName`: supports arithmetic operator “like”. `tags`, `attribute_tags`, `measurepoint_tags`, and `service_tags`: supports arithmetic operator “=”, “exists”, “not exists”, and “like”. Note: EnOS Edge does not support tag queries.
relationFilter	Optional	RelationFilter Struct	Query based on the relationship between models. Supports using both `expression` and `relationFilter` for searching. For more information, see RelationFilter Struct.
projection	Optional	Projection Struct	Enables you to crop the data result set returned in the request if needed. Only the specified fields will be returned in the data result set if this parameter is used. Otherwise all fields are returned. The supported fields are: `modelId`, `modelIdPath`, `orgId`, `name`, `desc`, `tags`, `attributes`, `measurepoints`, and `services`. For more details, see How does projection crop the result set. Note: EnOS Edge does not support this parameter.
pagination	Optional	Pagination Request Struct	Lists the paging requirements in a request. When not specified, 10 records are displayed per page by default. Note that if the `pageSize` number is big, the API response time will increase significantly for large models. For optimal performance, it is recommended to have not more than 25 records per page. `sorters` is not supported to sort the response. For more details, see Pagination Request Struct.

RelationFilter Struct ¶

Name

Required/Optional

Data Type

Description

relatedModelId

Required

String

The model ID.

relationType

Required

String

The type of relationship with the model of the relatedModelId. There are two options available.

childOfModel: The model(s) to search for is the child of relatedModelId.
descendantOfModel: The model(s) to search for is the descendant of relatedModelId.

Response Parameters¶

Name	Data Type	Description
data	Array of ThingModel Structs	A list of the thing models returned. For details of a Thingmodel Struct, see ThingModel Struct.

ThingModel Struct ¶

Name	Data Type	Description
modelId	String	The model ID.
modelIdPath	String	The model ID path.
orgId	String	The OU ID that created this model. For example, if a model in OU B is created by sharing from OU A, when you query the information of that model in OU B, the returned ID will be from OU A.
name	StringI18n	The model name, supports internationalization. For more details on the structure and locales supported, see Internationalized name struct.
desc	String	The model description.
category	String	Model category. In EnOS 3.0.0 Model Management, model categories are no longer defined, and the categories of existing models will be added to the models as tags.
tags	Map	User-defined tags. (The Key and Value are of String type.)
attributes	Map	The key is the static attribute ID, of String type, and the value is of the `ThingAttribute` Struct. For more information, see ThingAttribute Struct.
measurepoints	Map	The key is the measurement point ID, of String type, and the value is of the `ThingMeasurepoint` Struct. For more information, see ThingMeasurepoint Struct.
services	Map	The key is the service ID(i.e. command ID in EnOS Model Management), of String type, and the value is of the `ThingService` Struct. For more information, see ThingService Struct.

ThingAttribute Struct ¶

Name	Data Type	Description
identifier	String	The attribute ID.
dataType	String	The data type. E.g.: ARRAY, BOOL, DATE, ENUM, INT, FLOAT, DOUBLE, STRUCT, STRING, TIMESTAMP, FILE
dataDefinition	String	The data definition of the `dataType` in this structure, which is a JSON string. For example, when the `dataType` is “STRING”, it defines the string length; when the `dataType` is “ENUM”, it defines the value and description. How to use dataDefinition>>
isRequired	Boolean	If true, the value of this attribute must be set when the asset is instantiated; otherwise the asset will return a validation failure error when it is created.
defaultValue	As defined in the thing model	The default value of the attribute. If the attribute has no default value, `defaultValue` would be `null`. Note: EnOS Edge does not support this parameter.
name	StringI18n	The attribute name, supports internationalization. For more details on the structure and locales supported, see Internationalized name struct.
i18nDesc	StringI18n	The attribute description, supports internationalization. For more details on the structure and locales supported, see Internationalized name struct.
tags	Map	User-defined tags. (The Key and Value are of String type.)
isStdElement	Boolean	`true`: This is an industry standard element. `false`: This is not an industry standard element. Note: EnOS Edge does not support this parameter.
stdElementId	String	The URN of the element if `isStdElement` is `true` . The format is urn:enos:modelelement:std: `<id>` : `<version>` . `id` is the element ID. `<version>` is the version of the element. If `isStdElement` is `false` , then `stdElementId` is `null`. Note: EnOS Edge does not support this parameter.
unit	Unit Struct	For more information, see Unit Struct.

ThingMeasurepoint Struct ¶

Name	Data Type	Description
identifier	String	The ID of the measurement point.
dataType	String	Data type. E.g.: ARRAY, DATE, ENUM, INT, FLOAT, DOUBLE, STRUCT, STRING, TIMESTAMP, FILE
dataDefinition	String	The data definition of the `dataType` in this structure, which is a JSON string. For example, when the `dataType` is “STRING”, it defines the string length; when the `dataType` is “ENUM”, it defines the value and description. How to use dataDefinition>>
name	StringI18n	The measurement point name, supports internationalization. For more details on the structure and locales supported, see Internationalized name struct.
i18nDesc	StringI18n	The measurement point description, supports internationalization. For more details on the structure and locales supported, see Internationalized name struct.
tags	Map	User-defined tags. (The Key and Value are of String type.)
isStdElement	Boolean	`true`: This is an industry standard element. `false`: This is not an industry standard element. Note: EnOS Edge does not support this parameter.
stdElementId	String	The URN of the element if `isStdElement` is `true` . The format is urn:enos:modelelement:std: `<id>` : `<version>` . `id` is the element ID. `<version>` is the version of the element. If `isStdElement` is `false` , then `stdElementId` is `null`. Note: EnOS Edge does not support this parameter.
hasQuality	Boolean	`true`: Has the quality indicator. `false`: Does not have the quality indicator.
signalType	String	The signal/point type. E.g.: Generic, AI, PI, DI
unit	Unit Struct	For more information, see Unit Struct.

ThingService Struct ¶

Name	Data Type	Description
identifier	String	The service ID(i.e. command ID in EnOS Model Management).
name	StringI18n	The service name(i.e. command name in EnOS Model Management), supports internationalization. For more details on the structure and locales supported, see Internationalized name struct.
i18nDesc	StringI18n	The service description(i.e. command description in EnOS Model Management), supports internationalization. For more details on the structure and locales supported, see Internationalized name struct.
tags	Map	User-defined tags. (The Key and Value are of String type.)
isStdElement	Boolean	`true`: This is an industry standard element. `false`: This is not an industry standard element. Note: EnOS Edge does not support this parameter.
stdElementId	String	The URN of the element if `isStdElement` is `true` . The format is urn:enos:modelelement:std: `<id>` : `<version>` . `id` is the element ID. `<version>` is the version of the element. If `isStdElement` is `false` , then `stdElementId` is `null`. Note: EnOS Edge does not support this parameter.
inputData	ThingDatapoint Struct	The service’s input parameters list. For more information, see ThingDatapoint Struct.
outputData	ThingDatapoint Struct	The service’s output parameters list. For more information, see ThingDatapoint Struct.
callType	String	The calling type. This parameter will be deprecated. `ASYNC`: Asynchronous. `SYNC`: Synchronous.

ThingDatapoint Struct ¶

Name	Data Type	Description
identifier	String	The data point ID.
dataType	String	Data type. E.g.: ARRAY, DATE, ENUM, INT, FLOAT, DOUBLE, STRUCT, STRING, TIMESTAMP, FILE
dataDefinition	String	The data definition of the `dataType` in this structure, which is a JSON string. For example, when the `dataType` is “STRING”, it defines the string length; when the `dataType` is “ENUM”, it defines the value and description. How to use dataDefinition>>
name	StringI18n	The data point name, supports internationalization. For more details on the structure and locales supported, see Internationalized name struct.
i18nDesc	StringI18n	The data point description, supports internationalization. For more details on the structure and locales supported, see Internationalized name struct.
tags	Map	User-defined tags. (The Key and Value are of String type.)
isStdElement	Boolean	`true`: This is an industry standard element. `false`: This is not an industry standard element. Note: EnOS Edge does not support this parameter.
stdElementId	String	The URN of the element if `isStdElement` is `true` . The format is urn:enos:modelelement:std: `<id>` : `<version>` . `id` is the element ID. `<version>` is the version of the element. If `isStdElement` is `false` , then `stdElementId` is `null`. Note: EnOS Edge does not support this parameter.
unit	Unit Struct	For more information, see Unit Struct.
isRequired	Boolean	Applicable only for service `inputData`. If true (default) and `defaultValue` is null, the value of this data point must be given when invoking the service. Note: EnOS Edge does not support this parameter.
defaultValue	Depends on the data type	The default value of the data point. If the data point has no default value, `defaultValue` would be `null`. Applicable only for service `inputData`. Note: EnOS Edge does not support this parameter.

Unit Struct ¶

Name	Data Type	Description
unitId	String	The unit ID.
multiplier	String	The multiplier of the unit. For more information, see Multiplier.

Multiplier ¶

The multiplier of the unit can have the following values:

YOTTA ,//Y     10^24
ZETTA ,//Z     10^21
EXA   ,//E     10^18
PETA  ,//P     10^15
TERA  ,//T     10^12
GIGA  ,//G     10^9
MEGA  ,//M     10^6
KILO  ,//k     10^3
HECTO ,//h     10^2
DECA  ,//da    10^1
ONE   ,//      10^0
DECI  ,//d     10^-1
CENTI ,//c     10^-2
MILLI ,//m     10^-3
MICRO ,//μ     10^-6
NANO  ,//n     10^-9
PICO  ,//p     10^-12
FEMTO ,//f     10^-15
ATTO  ,//a     10^-18
ZEPTO ,//z     10^-21
YOCTO ,//y     10^-24

Error Codes¶

See Public Response Codes (Connection Service, etc.)

Samples¶

Request Sample¶

Request samples include: Search by expression and search by model relationship.

Search By Expression¶

url: https://{apigw-address}/model-service/v2.2/thing-models?action=search&orgId=yourOrgId&scope=1
method: POST
requestBody:
{
  "expression": "modelId in ('planet', 'noiseSensor')", // tags example: "tags.abc like '123'"
  "pagination": {
    "pageNo": 1,
    "pageSize": 10
    }
}

Search By Model Relationship¶

url: https://{apigw-address}/model-service/v2.2/thing-models?action=search&orgId=yourOrgId&scope=1
method: POST
requestBody:
{
    "relationFilter": {
        "relatedModelId": "modelId",
        "relationType": "childOfModel"
    },
    "pagination": {
        "pageNo": 1,
        "pageSize": 10
    }
}

Return Sample¶

{
    "code":0,
    "msg":"OK",
    "requestId":"c6594307-bc30-4380-9869-b8a88b9494de",
    "data":[
        {
            "modelId":"planet",
            "modelIdPath":"/planet",
            "orgId":"yourOrgId",
            "name":{
                "defaultValue":"planet",
                "i18nValue":{
                    "en_US":"planet"
                }
            },
            "desc":"Planet",
            "tags":{

            },
            "attributes":{
                "starsystem":{
                    "identifier":"starsystem",
                    "name":{
                        "defaultValue":"star system",
                        "i18nValue":{
                            "en_US":"star system"
                        }
                    },
                    "i18nDesc":{
                        "defaultValue":"Star system 1",
                        "i18nValue":{
                            "en_US":"Star system 1",
                            "zh_CN":"星系 1"
                      }
                    },
                    "tags":{

                    },
                    "stdElementId":"urn:user:modelelement:std:atom-property-int:1.0",
                    "isStdElement":true,
                    "dataType":"STRING",
                    "unit":null,
                    "isRequired":false,
                    "defaultValue":null
                }
            },
            "measurepoints":{
                "temperature":{
                    "identifier":"temperature",
                    "name":{
                        "defaultValue":"temperature",
                        "i18nValue":{
                            "en_US":"temperature"
                        }
                    },
                    "i18nDesc":{
                        "defaultValue":"Temperature",
                        "i18nValue":{
                            "en_US":"Temperature",
                            "zh_CN":"温度"
                      }
                    },
                    "tags":{

                    },
                    "stdElementId":"urn:user:modelelement:std:atom-property-int:1.0",
                    "isStdElement":true,
                    "dataType":"FLOAT",
                    "hasQuality":false,
                    "signalType":"Generic",
                    "unit":{
                        "unitId":"°C",
                        "multiplier":"ONE"
                    }
                }
            },
            "services":{
                "speedup":{
                    "identifier":"speedup",
                    "name":{
                        "defaultValue":"speedup",
                        "i18nValue":{
                            "en_US":"speedup"
                        }
                    },
                    "i18nDesc":{
                        "defaultValue":"Speedup",
                        "i18nValue":{
                            "en_US":"Speedup",
                            "zh_CN":"加速"
                      }
                    },
                    "tags":{

                    },
                    "outputData":[
                        {
                            "identifier":"delta",
                            "name":{
                                "defaultValue":"delta",
                                "i18nValue":{
                                    "en_US":"delta"
                                }
                            },
                            "i18nDesc":{
                                "defaultValue":"Delta",
                                "i18nValue":{
                                    "en_US":"Delta",
                                    "zh_CN":"Delta 描述"
                                }
                            },
                            "tags":{

                            },
                            "dataType":"INT",
                            "unit":null
                        }
                    ],
                    "inputData":[
                        {
                            "identifier":"delta",
                            "name":{
                                "defaultValue":"delta",
                                "i18nValue":{
                                    "en_US":"delta"
                                }
                            },
                            "i18nDesc":{
                                "defaultValue":"Delta",
                                "i18nValue":{
                                    "en_US":"Delta",
                                    "zh_CN":"Delta 描述"
                                }
                            },
                            "tags":{

                            },
                            "dataType":"INT",
                            "unit":{
                                "unitId":"rpm",
                                "multiplier":"ONE"
                            },
                            "isRequired":false,
                            "defaultValue":3
                        }
                    ],
                    "callType":"ASYNC"
                }
            }
        },
        {
            "modelId":"noiseSensor",
            "modelIdPath":"/noiseSensor",
            "orgId":"yourOrgId",
            "name":{
                "defaultValue":"Noise Sensor",
                "i18nValue":{
                    "en_US":"Noise Sensor"
                }
            },
            "desc":"Noise Sensor",
            "tags":{
                "group":"1"
            },
            "attributes":{

            },
            "measurepoints":{

            },
            "services":{

            }
        }
    ],
    "pagination":{
        "pageNo":1,
        "pageSize":10,
        "totalSize":2
    }
}

SDK Samples¶

You can access the SDK samples for Model Service APIs on GitHub:

Java
Python