CODEWITHSUNDEEP
pythonazureazure-digital-twins
equatorial_daydreamer
equatorial_daydreamer

Reputation: 408

Azure Digital Twin Python API- Created Twin of Model but cannot retrieve it

I have succesfully created a twin of a model using the azure.digitaltwins.core.DigitalTwinsClient with the upsert_digital_twin() method returning an object like below (printed as dictionary):

{
    $dtId twin-spc4-4b670a8e-86ec-41b0-84a2-ce092578a0f6
    $etag W/"8c491e49-f81f-4c30-b189-1bd45f122d7c"
    area {'$metadata': {}}
    capacity {'$metadata': {}}
    occupancy {'$metadata': {}}
    temperature {'$metadata': {}}
    humidity {'$metadata': {}}
    CO2 {'$metadata': {}}
    $metadata {'$model': 'dtmi:digitaltwins:rec_3_3:core:Level;1'}
}

However when I try and get this model using the get_digital_twin() method I get the following error:

azure.core.exceptions.ResourceNotFoundError: (DigitalTwinNotFound) There is no digital twin instance that exists with the ID {'$dtId': 'twin-spc4-4b670a8e-86ec-41b0-84a2-ce092578a0f6', '$etag': 'W%2F"8c491e49-f81f-4c30-b189-1bd45f122d7c"', 'area': {'$metadata': {}}, 'capacity': {'$metadata': {}}, 'occupancy': {'$metadata': {}}, 'temperature': {'$metadata': {}}, 'humidity': {'$metadata': {}}, 'CO2': {'$metadata': {}}, '$metadata': {'$model': 'dtmi:digitaltwins:rec_3_3:core:Level;1'}}. Please verify that the twin id is valid and ensure that the twin is not deleted. See section on querying the twins https://aka.ms/adtv2query.

Code: DigitalTwinNotFound
Message: There is no digital twin instance that exists with the ID {'$dtId': 'twin-spc4-4b670a8e-86ec-41b0-84a2-ce092578a0f6', '$etag': 'W%2F"8c491e49-f81f-4c30-b189-1bd45f122d7c"', 'area': {'$metadata': {}}, 'capacity': {'$metadata': {}}, 'occupancy': {'$metadata': {}}, 'temperature': {'$metadata': {}}, 'humidity': {'$metadata': {}}, 'CO2': {'$metadata': {}}, '$metadata': {'$model': 'dtmi:digitaltwins:rec_3_3:core:Level;1'}}. Please verify that the twin id is valid and ensure that the twin is not deleted. See section on querying the twins https://aka.ms/adtv2query.

What is happening? How can I retrieve the twin I created?

Upvotes: 1

Views: 323

Answers (1)

equatorial_daydreamer
equatorial_daydreamer

Reputation: 408

after raising a support ticket, I was asked to run the query

SELECT * FROM digitaltwins T where T.$dtId = <model_identifier>

This worked and focused specifically on the node. Subsequently running

SELECT * FROM digitaltwins

showed all the nodes created.

My guess is the ADT explorer hadn't focused itself on the right node and that's why I couldn't see it.

Upvotes: 1

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