Comments (3)
It is not possible to request all keys, at least to my knowledge.
But this limitation is not from this library, but instead the ThingsBoard API. See the official MQTT Documentaion for more info.
Alternatively, you can use the Shared_Attribute_Subscribe
method, which subscribes to any changes or creation of new shared attributes.
For that simply pass the Shared_Attribute_Callback
instance, but keep the 2nd parameter empty. Because if no keys are configured you are subscribed to all key changes.
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Yeah i see now, thnx.
Shared_Attribute_Subscribe without keys is not very useful right? Because if the device is offline it cant know that it was created to later request it.
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Yes that is the case updates in between states of being offline will be lost. I'll check the API again to really ensure if it isn't possible to request all keys, because with REST it is.
But if it were it would be an undocumented feature, which would definetly need to be changed.
Will update this thread once I tested it, but I dont have high hopes.
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Related Issues (20)
- pupdate thingsboard library.json at platformio
- OTA failing (Unable to request firmware chunk) HOT 2
- 0014-espressif_esp32_send_data as components meets the "TICKE.H" error was encountered HOT 6
- OTA update Fails with [TB: preparing for update fails, Attributes might be NULL] HOT 16
- Sketches don't run with ArduinoJSON ver. 7.0.0 HOT 12
- Device connecting to APN but not to ThingsBoard when using GSM HOT 6
- When seding data Thingsboard disconnects every second attemped HOT 3
- RPC_Response, Dangling Reference HOT 2
- esp-idf Menuconfig shows description instead of a name for THINGSBOARD_ENABLE_DYNAMIC
- OTA example issues due to callback defined inside loop? HOT 1
- sending telemetry data sucessfull but they are not in visible in thingsboard HOT 1
- Missing "m_capacity = capacity;" in reserve() in Vectors.h causes MAX_RPC_EXCEEDED error HOT 1
- RPC_Response::RPC_Response(Telemetry telemetry) constructor creates NULL object HOT 2
- How to handle big jsons? HOT 1
- data transmission issue HOT 2
- RPC not work in esp-idf HOT 12
- Provision fails when Dynamic ThingsBoard usage HOT 6
- Callback during tb.loop causes Guru Meditation Error HOT 2
- After call sendTelemetryJson connection is disconnect. HOT 3
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