Execute a Model Using RuntimeEngine

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If you want to execute a FlexRule model using the FlexRule RuntimeEngine follow the steps mentioned below.

First of all, you need to request the FlexRule Runtime License from FlexRule’s online licensing service using your access token.

1. Get your access token from authentication

var result = AuthService.Auth(input.Email, input.Password);

The access token can be retrieved from the result object.

2. Generate a machine id

var user = UserInfo.ExtractUser(accessToken);
var machineIdGen = new MachineIdGen();
var machineId = machineIdGen.Generate(new PortalUser
{
    Login = user.Login,
    Email = user.Email,
    FirstName = user.FirstName,
    LastName = user.LastName
});

3. Retrieve the license from the FlexRule Subscription service

SubscriptionService.RetrieveLicenses(
    accessToken,
    machineId,
    new[] { VersionUtility.Major },
    out var offlineLicense,
    out var forceAuth,
    out var licenses
);

4. Extract the FRE license content

var freLicense = licenses.FRE;

AuthService and SubscriptionService can be used from the NuGet package. 
FlexRule.Common.10.1.972.nupkg (Please see the attached file)

5. How to link the license key

Read this article for more details.

UserLicense.Key = freLicense;

Example

Here is a simple test case to give you an idea of how to use this freLicense and run a model.

public void test_simple_project()
{
//Add your license key here
UserLicense.Key = freLicense;
var baseFolderPath = Path.GetFullPath(GetPath("TestProjectName"));
var workspace = $"workspace-{Guid.NewGuid()}";
var modulePath = Path.Combine(baseFolderPath, "DecisionGraph.xml");
var xmlText = File.ReadAllText(modulePath);
var xmlBytes = Encoding.UTF8.GetBytes(xmlText);
var runtime = RuntimeEngine.FromXml(xmlBytes, baseFolderPath );
var js = Json.Parse(@"{}");
var dic = (IDictionary<string, object>)js;
var result = runtime.Run(dic);
}