DecisioQ System ArchitectureDecision ConceptsDecision ListAPI GuideClient KitDeveloper CenterDecision StudioQuick StartPlaygroundEnd-to-End Examples
Version 7.6.3

DecisioQ Client Kit

Machine-readable contracts, executable integration assets, a visual browser sample, and runnable .NET, Node.js, Python, Go, Java, and PHP examples aligned with the current DecisioQ API.

Windows visual sampleNode.js visual sample.NET sampleOpenAPI specificationAPI Guide
Environment note: the API Consumer Environment field is currently informational. It does not provide sandbox isolation, routing, authorization, or billing behavior.

API contracts

Use these files for code generation, validation, and contract review.

Tools and examples

Every runnable package demonstrates the same server-side authentication, JWT retry, prepared request, API error handling, and result workflow. Choose your application language, or start with the visual browser sample. Credentials are never embedded in browser JavaScript.

How to use the samples

Download and extract the package for your language. Set DECISIOQ_CLIENT_ID and DECISIOQ_CLIENT_SECRET as environment variables before running it. Each command-line sample reads the included prepared decision request, obtains a JWT from VINquery Identity, calls DecisioQ, retries authentication once after a 401 response, and prints the result.

C# / .NET 8

Reference client: decisioq-dotnet-client-7.6.3.zip is reusable C# source for an existing application. It wraps authentication, HTTP calls, correlation IDs, response models, and API errors. It is a class library and is not started by itself.

Runnable sample: decisioq-dotnet-sample-7.6.3.zip includes that client plus a console application showing how to configure and call it. Extract it, open START-HERE-DecisioQ.Sample.sln, select DecisioQ.Sample, and run it; or use dotnet run --project .\DecisioQ.Sample\DecisioQ.Sample.csproj.

Node.js 18+

Open a terminal in the extracted node folder and run npm start. The sample uses Node's built-in fetch, so no package installation is required.

Python 3.9+

Open a terminal in the extracted python folder and run python app.py. It uses only the Python standard library.

Go 1.21+

Open a terminal in the extracted go folder and run go run .. No third-party modules are required.

Java 11+

Open a terminal in the extracted java folder, run javac DecisioQSample.java, then java DecisioQSample. It uses Java's standard HTTP client.

PHP 8.1+

Ensure the PHP cURL extension is enabled, open a terminal in the extracted php folder, and run php sample.php.

Windows visual sample packages

Ready-to-run application: decisioq-windows-visual-sample-7.6.3.zip contains the compiled, self-contained Windows x64 application. Choose this package when you want to run the visual sample immediately. It does not require Node.js, the .NET runtime, the .NET SDK, Visual Studio, or administrator installation.

Developer source: decisioq-windows-visual-source-7.6.3.zip contains the editable ASP.NET Core 8 project source, including Program.cs, the project file, web UI, prepared request, and README. Choose this package when you want to inspect, modify, build, or integrate the application. Building it requires the .NET 8 SDK or Visual Studio 2022 with ASP.NET development support.

Run the ready-to-run package:

  1. Download decisioq-windows-visual-sample-7.6.3.zip.
  2. Right-click the ZIP, select Extract All, and open the extracted folder.
  3. Double-click DecisioQ.VisualSample.exe.
  4. Keep the console window open and note the local address it displays. The application normally uses http://127.0.0.1:7076; if that port is occupied, it selects the next available port through 7095.
  5. If the browser does not open automatically, enter the displayed local address manually.
  6. Enter the API Consumer client ID and secret, select Use credentials, and then select Run Decision.
  7. When finished, close the console window or press Ctrl+C.

Visual web sample

This alternative is intended for Node.js users. Extract the package, set the credential environment variables, and run npm start. Open http://localhost:7076. The browser provides an editable form while the local Node.js server protects the credentials and calls the APIs.

Postman

Import both the collection and environment JSON files into Postman. Select the imported environment, enter the client ID and secret in its current-value fields, then run the authentication request followed by a decision request. Do not save real credentials into a shared or exported environment.

Operate the integration

Error recovery, security, billing behavior, onboarding, and support diagnostics.

Versioning and governance

Compatibility expectations, release history, and the requirements for a genuine isolated sandbox.