BatchAssociateClientDeviceWithCoreDevice - AWS IoT Greengrass


Associates a list of client devices with a core device. Use this API operation to specify which client devices can discover a core device through cloud discovery. With cloud discovery, client devices connect to AWS IoT Greengrass to retrieve associated core devices' connectivity information and certificates. For more information, see Configure cloud discovery in the AWS IoT Greengrass V2 Developer Guide.


Client devices are local IoT devices that connect to and communicate with an AWS IoT Greengrass core device over MQTT. You can connect client devices to a core device to sync MQTT messages and data to AWS IoT Core and interact with client devices in Greengrass components. For more information, see Interact with local IoT devices in the AWS IoT Greengrass V2 Developer Guide.

Request Syntax

POST /greengrass/v2/coreDevices/coreDeviceThingName/associateClientDevices HTTP/1.1 Content-type: application/json { "entries": [ { "thingName": "string" } ] }

URI Request Parameters

The request uses the following URI parameters.


The name of the core device. This is also the name of the AWS IoT thing.

Length Constraints: Minimum length of 1. Maximum length of 128.

Required: Yes

Request Body

The request accepts the following data in JSON format.


The list of client devices to associate.

Type: Array of AssociateClientDeviceWithCoreDeviceEntry objects

Array Members: Minimum number of 1 item. Maximum number of 100 items.

Required: No

Response Syntax

HTTP/1.1 200 Content-type: application/json { "errorEntries": [ { "code": "string", "message": "string", "thingName": "string" } ] }

Response Elements

If the action is successful, the service sends back an HTTP 200 response.

The following data is returned in JSON format by the service.


The list of any errors for the entries in the request. Each error entry contains the name of the AWS IoT thing that failed to associate.

Type: Array of AssociateClientDeviceWithCoreDeviceErrorEntry objects

Array Members: Maximum number of 100 items.


For information about the errors that are common to all actions, see Common Errors.


You don't have permission to perform the action.

HTTP Status Code: 403


AWS IoT Greengrass can't process your request right now. Try again later.

HTTP Status Code: 500


The requested resource can't be found.

HTTP Status Code: 404


Your request exceeded a request rate quota. For example, you might have exceeded the amount of times that you can retrieve device or deployment status per second.

HTTP Status Code: 429


The request isn't valid. This can occur if your request contains malformed JSON or unsupported characters.

HTTP Status Code: 400

See Also

For more information about using this API in one of the language-specific AWS SDKs, see the following: