Cloud of Things Java Rest SDK (Cloud der Dinge Java Rest SDK)
Matthimatiker Merge pull request #78 from crmolinaz/fix_connect_reconnect
fixed issue when connect and reconnect for realtime notification
Latest commit 912297e Dec 3, 2018

Cloud of Things Java Rest SDK

The Cloud of Things (German Cloud der Dinge) is a platform for the Internet of Things by T-Systems International GmbH. Inside this repository you will find a Java based SDK to interface with the Cloud of Things API.

Current version is: 1.1.0


Add this to your pom.xml to include the SDK in your Maven Repo


Example of a basic connect to the platform:

CloudOfThingsPlatform cotPlatform = new CloudOfThingsPlatform("hostname", new CotCredentials("tenant", "username", "password"));
InventoryApi inventoryApi = cotPlatform.getInventoryApi();

Developers can find further information and examples in the file.

Java Doc

You can find the Java Doc of the latest release here:

Release Notes

Short information about what has changed between releases.

Release 1.1.0

  • Includes Pull Request #73: Efficiently iterate over all objects in a collection via Java 8 Stream (accessible via stream()): pagination is automatically performed in the background
  • Resolve issue #72: Improved paging performance
  • Fix double slashes in url (Pull Request #77)

Release 1.0.5

  • Provide functionality to get all SmartREST Templates by X-ID
  • Resolve issue #52: provide http status code in thrown exception in getMeasurement()

Release 1.0.4

  • Improve usage of accept and content-type headers in rest client
  • Improve usage of OkHttpClient so that lesser resources will be used
  • Fix handling of binary data using byte array
  • Remove double slashes in rest api paths to avoid http code 404
  • Resolve issue #51: provide failure reason for failed operations
  • Resolve issue #53: provide a new method for creation NewDeviceRequests
  • Handle filters as enum and validate filters supported by cot
  • Improve Notification class which now provides realtime action

Release 1.0.2

  • Update of okhttp.
  • Better integration-tests.
  • Better login-process (include tenant in username).
  • NewDeviceRequestStatus-enum.
  • Refactoring.

Release 1.0.0

  • Improved Examples: Add examples for SDK-Users (see
  • Implemented Sensor Library
  • Implemented Binaries API
  • Final adjustments for MIT License
  • Improve ManagedObject-deserialization
  • Credentials for integration tests will be read from environment variables instead of property file
  • Refactor device permission handling
  • A lot of improvements and cleanups

Release 0.6.1

  • Provides and uses SmartRequest/-Response classes

Release 0.6.0

  • Complete Device control
  • Complete Real-time notifications
  • Complete Real-time statements
  • Complete Device management library
  • Complete Users API
  • Complete Retention Rule API
  • Complete SmartREST API
  • Complete Audit API
  • Refactor collection classes extending JsonArrayPagination base class

Release 0.5.0

  • Most important change is the removal of right now unused parameter tenant in CloudOfThingsPlatform constructor (See commit 62079fe).
  • Unsuccessful creation/store of objects in the CoT will now result in a CotSdkException.
  • New method DeviceCredentialsApi.NewDeviceRequest(..).
  • MeasurementsApi supports creating measurement collections.

Release 0.4.0

  • Improvements, e.g. connection exception handling
  • Short information about what has changed between releases.
  • Bulk Operations (beta)

Release 0.3.0

  • Complete Inventory
  • Get ManagedObjects in Collection
  • Complete Alarm API
  • Retrieve collections
  • Update Alarms
  • Complete Device Credentials API
  • Complete IdentityApi

Release 0.2.0

  • Complete Events
  • Complete Device registration process
  • Implement removal of devices and its belongings
  • Complete MeasurementsAPI
  • Refactor from single methods to Query objects.
  • Filter Date
  • Filter FragmentType
  • ... and combinations
  • DELETE - delete a measurement collection
  • Complete Inventory
  • DELETE a managed object reference