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ConsoleClientCredentials.VB.NetFramework.vbproj
Program.vb
README.md

README.md

Tapkey API Console Sample with Client Credentials (VB, .NET Framework 4.7.2)

Client credentials flow

This console application demonstrates how to consume the Tapkey API from an application using the client credentials flow.

The Client Credentials flow is tipically used when the client (the application) is acting on its own behalf. This means that there's no actual user/person interaction in the process. The client (application) is the owner of the resources.

What does this application do?

This application will print a list of all locking products that are managed by this OAuth client (as a co-admin in the main owner account)

Prerequisites

Register your OAuth client with Tapkey

You need to register your client application in the Tapkey portal here: Manage your OAuth clients.

For that make sure you:

  1. Select the Client Credentials flow
  2. Select "ReadOnly" for both the CoreEntities and Owners permissions
  3. Upon saving, you'll receive the client credentials (id and secret). Please save this in a secure way. Tapkey does not store the secret. If you lose it, you'll have to reset it.
  4. Optionally, give access as "co-admin" to your client to an existing owner account. For this, you can use the e-mail address also shown in the client details page

Technical requirements

  • .NET Framework 4.7.2 installed
  • At least Visual Studio 2017 (Community version also works)

Usage

You can either run the app via the command line or with Visual Studio.

From the command line:

You can run this console app by building the project and executing the .exe from the command line passing the following arguments:

  -i|--id <clientId> Your client ID.
  -s|--secret <clientSecret> Your client secret.

Example:

$ cd tapkey-api-samples-dotnet\src\ConsoleClientCredentials.VB.NetFramework\bin\Debug\net472

$ ConsoleClientCredentials.VB.NetFramework.exe -i my-client-id -s my-secret

From Visual Studio 2017 (or upcoming 2019):

To debug this app in Visual Studio, you'll need to set the arguments before hand:

  1. Right click in the project > Properties
  2. Choose the tab Debug on the left menu
  3. In "Application arguments", enter the arguments as above. -i my-clientid -s my-secret
  4. Save, and you can run hitting F5

Example output

Displaying Bound Locks for Owner Account Tapkey (6426d8f8-••••-••••-••••-••••••••••••):

Lock ID: 43301e56-••••-••••-••••-••••••••••••
Title: Sebastian's Lock
Description: This is my first Tapkey lock.
Lock model name: Td20
Binding date: 02-Jun-17 8:18:56

Structure

The most important methods of the application are the RequestClientCredentialsToken(string clientId, string clientSecret) which initiates the client credentials flow for the provided clientId. After a successfull authorization, the QueryBoundLocksAsync(string access_token) is called and it will use the access_token to communicate with the Tapkey API.

Outline

  1. Authorize against Tapkey's OAuth 2.0 service using the client_credentials flow
  2. Retrieve the Owner Accounts which this OAuth client has access, and iterate over them
  3. Retrieve Bound Locks for each owner account found
  4. Displays the information

Technology used

License

Copyright (c) Tapkey GmbH. All rights reserved.

Licensed under the Apache License 2.0

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