greengrasssdk.IoTDataPlane module

exception greengrasssdk.IoTDataPlane.ShadowError

Bases: Exception

class greengrasssdk.IoTDataPlane.Client

Bases: object

get_thing_shadow(**kwargs)

Call shadow lambda to obtain current shadow state.

Keyword Arguments:  

• thingName (string) – [REQUIRED] The name of the thing.

Returns:

(dict) –

The output from the GetThingShadow operation

• payload (bytes) – The state information, in JSON format.

update_thing_shadow(**kwargs)

Updates the thing shadow for the specified thing.

Keyword Arguments:  

• thingName (string) – [REQUIRED] The name of the thing.
• payload (bytes or seekable file-like object) – [REQUIRED] The state information, in JSON format.

Returns:

(dict) –

The output from the UpdateThingShadow operation

• payload (bytes) – The state information, in JSON format.

delete_thing_shadow(**kwargs)

Deletes the thing shadow for the specified thing.

Keyword Arguments:  

• thingName (string) – [REQUIRED] The name of the thing.

Returns:

(dict) –

The output from the DeleteThingShadow operation

• payload (bytes) – The state information, in JSON format.

publish(**kwargs)

Publishes state information.

Keyword Arguments:  

• topic (string) – [REQUIRED] The name of the MQTT topic.
• payload (bytes or seekable file-like object) – The state information, in JSON format.
• queueFullPolicy (string) – The policy for GGC to take when its internal queue is full

Returns:

None