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Questions tagged [cumulocity]

Cumulocity is a proprietary, cloud-based Internet of Things (IoT) applications development platform.

Cumulocity is a proprietary, cloud-based Internet of Things (IoT) applications development platform with REST APIs to connect IoT devices. For connecting devices, many embedded environments using , , , , and others are supported.

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Is there any documented example of using a custom sensor say TMP35 with cumulocity using Java

I am having a hard time understanding where exactly do we bind the hardware for example a TMP35 temperature sensor with the software (i.e. in the Java API). Is there any documented example for this or any custom sensor (where the driver isn't…
rents
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Creating custom widget

Is it possible (or planned) to create some kind of custom widgets that can be added in dashboards? For example, I would like to present a list of assets/devices with custom properties (myCustomPropetyA, myCustomPropetyB, ...) as column. I know there…
Thomas Lallement
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Strange behaviour when using "revert" parameter in cumulocity API

When using the REST API to get measurements I can pass the revert parameter to reverse the order of the measurements: https://tenant.cumulocity.com/measurement/measurements?revert=true However, as soon as I pass an extra device as a parameter,…
Davis Kirkendall
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AES-PSK authentification using grizzly

I have already developed a grizzly-based-HTTP-Server. In order to test my Server I also developed a grizzly-based-Client, which can comunicate with my Server using http-Messages. I instantiate my http-Server using grizzly as following: HttpServer…
amitakCs
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Cumulocity API to get timestamp

Is there an API to get data based on timestamp? This would help to retrieve only the delta since the last API call from the Cumulocity. Or, as alternative: Is there an API that can push data to an HTTP port or a messaging queue?
Dominika Majcher
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Content-Type" header for cumulocity API

Our Gemalto Module only allows 127 characters for HTTP header data. Is there a possibility to shorten the "Content-Type" header because currently both headers together (Authorization and Content-Type) exceed the 127 characters. If this is not…
Dominika Majcher
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Who should define the application key in Cumulocity

A little confused with the application key as mentioned in Cumulocity website, "Applications are identified by a so-called application key, which is included into requests that an application makes. The application key enables Cumulocity to…
Bill Zhou
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Using Chart.js and Ng2-Chart in Cumulocity

I am currently building an Angular application to be hosted on the Cumulocity IoT platform, and I am trying to use Chart.js to generate custom bar charts. This did not work at first, so I did a little digging and discovered the special node package,…
liberlux
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Configuring C++ Application to publish messages to Cumulocity using Mosquitto

I am currently developing a C++ application with the Momentics IDE that is running on a QNX OS host on a VMware Player virtual machine. The application uses the MQTT protocol provided by Mosquitto to publish messages to Cumulocity IoT’s Device…
liberlux
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Angular Material not support in Cumulocity environment

Using Angular Material version 12 in Cumulocity IoT breaks the application design . In web every thing works fine but after deploying in Cumulocity IoT , the design breaks. It breaks when using self developed Widgets .Nothing of Material component…
arijit158
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"Error while reacting on microservice subscription" in Cumulocity Java SDK

A microservice is successfully deployed in cumulocity platform without any errors but application is throwing IO Exception stating "The server cumulocity failed to respond" even without any hit to any of the api's exposed. Full stacktrace is as…
Datta Sai
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Caused by: java.lang.IllegalStateException: Not within any context! in Cumulocity Java SDK

I want to get the device details for each tenant present in the subscription in a multi threading environment using Executors service to fetch the device details using the Platform Service provided by the Cumulocity Micro-service SDK but getting the…
Datta Sai
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fetch the microservice subscribed tenant status value using cumulocity java sdk client

I want to get the microservice subscribed tenant status value using cumulocity java sdk client. i am able to fetch the tenant status value("ACTIVE"/"SUSPENDED"/"DELETED") using the Rest api request GET url: {{baseurl}}/tenant/tenants/{tenantId}. I…
Pushkar
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how to debug request api under cumulocity

how to debug request api under cumulocity I tried to call api cumulocity with postman but it does not work error 404 moreover seems to me that I have configured the environment correctly under postman I'm trying to debug I don't know how
may
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How to add additional export options to cumulocity cockpit?

I'm currently trying to add export options to my cumulocity cockpit. By default it is only possible to select CSV and Excel (on version: 10.15.0). See documentation https://cumulocity.com/guides/users-guide/cockpit/#exports Is it possible to add…
N33D
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