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The openHES API offers a search functionality to locate items within the system.

By using filtering and sorting options, you can refine search results and easily manage large numbers of configured items.

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Important

All requests in this documentation follow this endpoint structure:

/io.clbs.openhes.services.svcapi.ApiService/{endpoint}

Replace {endpoint} with the specific API action listed in each section.

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Search

To search for any items in openHES, send a request to the appropriate endpoint as shown below:

Item	Endpoint
Bulks	ListBulks
Jobs in bulks*	ListBulkJobs
Communication buses	ListCommunicationBuses
Communication units	ListCommunicationUnits
Registers	ListDeviceConfigurationRegisters
Templates	ListDeviceConfigurationTemplates
Drivers	ListDrivers
Devices	ListDevices
Device groups	ListDeviceGroups
Devices in device groups*	ListDeviceGroupDevices
Modem pools	ListModemPools
Variables	ListVariables

* Requests to these endpoints require also the ID of the item.

Example requests:

• Search with a limited number of results.

{
  "pageSize": 1000,
  "offset": 0,
}

• List all devices in a group with the 01959ecb-6c9b-7664-85ec-d3a754ada88b ID.

{
  "groupId": "01959ecb-6c9b-7664-85ec-d3a754ada88b",
  "selector": {
    "pageSize": 1000,
    "offset": 0,
    "sortBy": [
      {
        "fieldId": "o.spec.dctId",
        "desc": true
      },
      {
        "fieldId": "o.spec.externalId",
        "desc": false
      }
    ]    
  }
}

→ API OBJECT documentation (List Items)

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Filter Search Results

To narrow the results, you can apply filters based on specific criteria, such as IDs and Metadata.

The supported filter operators are:

• EQUAL
• NOT_EQUAL
• GREATER_THAN
• GREATER_THAN_OR_EQUAL
• LESS_THAN, LESS_THAN_OR_EQUAL
• CONTAINS
• NOT_CONTAINS
• STARTS_WITH
• ENDS_WITH

Example request:

• Filter devices that use the LANDISGYR_GENERIC_DLMS_SN driver:

{
  "pageSize": 100,
  "offset": 0,
  "filterBy": [
    {
      "fieldId": "o.spec.driverType",
      "operator": "EQUAL",
      "dataType": "TEXT",
      "text": [
        "LANDISGYR_GENERIC_DLMS_SN"
      ]
    }
  ]
}

→ API OBJECT documentation (Filter Items)

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Sort Results

To organize search results, you can sort and arrange items according to their attributes.

Example request:

• Sort devices first by their template ID dctId and then by externalId:

{
  "pageSize": 100,
  "offset": 0,
  "sortBy": [
    {
      "fieldId": "o.spec.dctId",
      "desc": true
    },
    {
      "fieldId": "o.spec.externalId",
      "desc": false
    }
  ]
}

→ API OBJECT documentation (Sort Items)

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