using System;
using Stateless;

namespace StatelessTests
{
    class Program
    {
        static void Main(string[] args)
        {
            try
            {
                string on = "On", off = "Off";
                var space = ' ';

                var onOffSwitch = new StateMachine<string, char>(initialState: off);

                onOffSwitch.Configure(state: off).Permit(trigger: space, destinationState: on);
                onOffSwitch.Configure(state: on).Permit(trigger: space, destinationState: off);

                Console.WriteLine("Press <space> to toggle the switch. Any other key will raise an error.");

                while (true)
                {
                    Console.WriteLine("Switch is in state: " + onOffSwitch.State);
                    var pressed = Console.ReadKey(true).KeyChar;
                    onOffSwitch.Fire(trigger: pressed);
                }
            }
            catch (Exception ex)
            {
                Console.WriteLine("Exception: " + ex.Message);
                Console.WriteLine("Press any key to continue...");
                Console.ReadKey(true);
            }
        }
    }
}

public class StateMachine<TState, TTrigger>

<statemachine xmlns="http://statelessdesigner.codeplex.com/Schema">
  <settings>
    <itemname>BlogPostStateMachine</itemname>
    <namespace>StatelessTests</namespace>
    <class>public</class>
  </settings>
  <triggers>     
    <trigger>Save</trigger>
    <trigger>RequireEdit</trigger>
    <trigger>Accept</trigger>
    <trigger>Reject</trigger>
  </triggers>
  <states>     
    <state start="yes">Begin</state>
    <state>InProgress</state>     
    <state>Published</state>      
    <state>Rejected</state>      
  </states>
  <transitions>
    <transition trigger="Save" from="Begin" to="InProgress" />

    <transition trigger="Accept" from="InProgress" to="Published" />
    <transition trigger="Reject" from="InProgress" to="Rejected" />

    <transition trigger="Save" from="InProgress" to="InProgress" />

    <transition trigger="RequireEdit" from="Published" to="InProgress" />
    <transition trigger="RequireEdit" from="Rejected" to="InProgress" />
  </transitions>
</statemachine>

using Stateless;

namespace StatelessTests
{
  public class BlogPostStateMachine
  {
    public delegate void UnhandledTriggerDelegate(State state, Trigger trigger);
    public delegate void EntryExitDelegate();
    public delegate bool GuardClauseDelegate();

    public enum Trigger
    {
      Save,
      RequireEdit,
      Accept,
      Reject,
    }

    public enum State
    {
      Begin,
      InProgress,
      Published,
      Rejected,
    }

    private readonly StateMachine<State, Trigger> stateMachine = null;

    public EntryExitDelegate OnBeginEntry = null;
    public EntryExitDelegate OnBeginExit = null;
    public EntryExitDelegate OnInProgressEntry = null;
    public EntryExitDelegate OnInProgressExit = null;
    public EntryExitDelegate OnPublishedEntry = null;
    public EntryExitDelegate OnPublishedExit = null;
    public EntryExitDelegate OnRejectedEntry = null;
    public EntryExitDelegate OnRejectedExit = null;
    public GuardClauseDelegate GuardClauseFromBeginToInProgressUsingTriggerSave = null;
    public GuardClauseDelegate GuardClauseFromInProgressToPublishedUsingTriggerAccept = null;
    public GuardClauseDelegate GuardClauseFromInProgressToRejectedUsingTriggerReject = null;
    public GuardClauseDelegate GuardClauseFromInProgressToInProgressUsingTriggerSave = null;
    public GuardClauseDelegate GuardClauseFromPublishedToInProgressUsingTriggerRequireEdit = null;
    public GuardClauseDelegate GuardClauseFromRejectedToInProgressUsingTriggerRequireEdit = null;
    public UnhandledTriggerDelegate OnUnhandledTrigger = null;

    public BlogPost()
    {
      stateMachine = new StateMachine<State, Trigger>(State.Begin);
      stateMachine.Configure(State.Begin)
        .OnEntry(() => { if (OnBeginEntry != null) OnBeginEntry(); })
        .OnExit(() => { if (OnBeginExit != null) OnBeginExit(); })
        .PermitIf(Trigger.Save, State.InProgress , () => { if (GuardClauseFromBeginToInProgressUsingTriggerSave != null) return GuardClauseFromBeginToInProgressUsingTriggerSave(); return true; } )
      ;
      stateMachine.Configure(State.InProgress)
        .OnEntry(() => { if (OnInProgressEntry != null) OnInProgressEntry(); })
        .OnExit(() => { if (OnInProgressExit != null) OnInProgressExit(); })
        .PermitIf(Trigger.Accept, State.Published , () => { if (GuardClauseFromInProgressToPublishedUsingTriggerAccept != null) return GuardClauseFromInProgressToPublishedUsingTriggerAccept(); return true; } )
        .PermitIf(Trigger.Reject, State.Rejected , () => { if (GuardClauseFromInProgressToRejectedUsingTriggerReject != null) return GuardClauseFromInProgressToRejectedUsingTriggerReject(); return true; } )
        .PermitReentryIf(Trigger.Save , () => { if (GuardClauseFromInProgressToInProgressUsingTriggerSave != null) return GuardClauseFromInProgressToInProgressUsingTriggerSave(); return true; } )
      ;
      stateMachine.Configure(State.Published)
        .OnEntry(() => { if (OnPublishedEntry != null) OnPublishedEntry(); })
        .OnExit(() => { if (OnPublishedExit != null) OnPublishedExit(); })
        .PermitIf(Trigger.RequireEdit, State.InProgress , () => { if (GuardClauseFromPublishedToInProgressUsingTriggerRequireEdit != null) return GuardClauseFromPublishedToInProgressUsingTriggerRequireEdit(); return true; } )
      ;
      stateMachine.Configure(State.Rejected)
        .OnEntry(() => { if (OnRejectedEntry != null) OnRejectedEntry(); })
        .OnExit(() => { if (OnRejectedExit != null) OnRejectedExit(); })
        .PermitIf(Trigger.RequireEdit, State.InProgress , () => { if (GuardClauseFromRejectedToInProgressUsingTriggerRequireEdit != null) return GuardClauseFromRejectedToInProgressUsingTriggerRequireEdit(); return true; } )
      ;
      stateMachine.OnUnhandledTrigger((state, trigger) => { if (OnUnhandledTrigger != null) OnUnhandledTrigger(state, trigger); });
    }

    public bool TryFireTrigger(Trigger trigger)
    {
      if (!stateMachine.CanFire(trigger))
      {
        return false;
      }
      stateMachine.Fire(trigger);
      return true;
    }

    public State GetState
    {
      get
      {
        return stateMachine.State;
      }
    }
  }
}

namespace StatelessTests
{
    public class BlogPostManager
    {
        private BlogPostStateMachine _stateMachine;
        public BlogPostManager()
        {
            configureWorkflow();
        }

        private void configureWorkflow()
        {
            _stateMachine = new BlogPostStateMachine();

            _stateMachine.GuardClauseFromBeginToInProgressUsingTriggerSave = () => { return UserCanPost; };
            _stateMachine.OnBeginExit = () => { /* save data + save state + send an email to admin */ };

            _stateMachine.GuardClauseFromInProgressToPublishedUsingTriggerAccept = () => { return UserIsAdmin; };
            _stateMachine.GuardClauseFromInProgressToRejectedUsingTriggerReject = () => { return UserIsAdmin; };
            _stateMachine.GuardClauseFromInProgressToInProgressUsingTriggerSave = () => { return UserHasEditRights; };
            _stateMachine.OnInProgressExit = () => { /* save data + save state + send an email to user */ };

            _stateMachine.OnPublishedExit = () => { /* save data + save state + send an email to admin */ };
            _stateMachine.GuardClauseFromPublishedToInProgressUsingTriggerRequireEdit = () => { return UserHasEditRights; };

            _stateMachine.OnRejectedExit = () => { /* save data + save state + send an email to admin */ };
            _stateMachine.GuardClauseFromRejectedToInProgressUsingTriggerRequireEdit = () => { return UserHasEditRights; };
        }

        public bool UserIsAdmin
        {
            get
            {
                return true; // TODO: Evaluate if user is an admin.
            }
        }

        public bool UserCanPost
        {
            get
            {
                return true; // TODO: Evaluate if user is authenticated
            }
        }

        public bool UserHasEditRights
        {
            get
            {
                return true; // TODO: Evaluate if user is owner or admin
            }
        }

        // User actions
        public void Save() { _stateMachine.TryFireTrigger(BlogPostStateMachine.Trigger.Save); }
        public void RequireEdit() { _stateMachine.TryFireTrigger(BlogPostStateMachine.Trigger.RequireEdit); }

        // Admin actions        
        public void Accept() { _stateMachine.TryFireTrigger(BlogPostStateMachine.Trigger.Accept); }
        public void Reject() { _stateMachine.TryFireTrigger(BlogPostStateMachine.Trigger.Reject); }
    }
}

{
  "name": "string",
  "email": "string",
  "password": "string",
  "isAdmin": true,
  "id": 0
}

import http from "./httpService";
import { apiUrl } from "../config.json";

const apiEndpoint = apiUrl + "/users";

export function register(user) {
  return http.post(apiEndpoint, {
    email: user.username,
    password: user.password,
    name: user.name
  });
}

class RegisterForm extends Form {
  state = {
    data: { username: "", password: "", name: "" },
    errors: {}
  };

import * as userService from "../services/userService";

import { register } userService from "../services/userService";

  doSubmit = async () => {
    try {
      await userService.register(this.state.data);
    } catch (ex) {
      if (ex.response && ex.response.status === 400) {
        const errors = { ...this.state.errors }; // clone an object
        errors.username = ex.response.data;
        this.setState({ errors });
      }
    }
  };

{
  "email": "string",
  "password": "string"
}

var jwt = _tokenFactoryService.CreateAccessToken(user);
return Ok(new { access_token = jwt });

import { apiUrl } from "../config.json";
import http from "./httpService";

const apiEndpoint = apiUrl + "/auth";

export function login(email, password) {
  return http.post(apiEndpoint + "/login", { email, password });
}

import * as auth from "../services/authService";

class LoginForm extends Form {
  state = {
    data: { username: "", password: "" },
    errors: {}
  };

  // ...

  doSubmit = async () => {
    try {
      const { data } = this.state;
      const {
        data: { access_token }
      } = await auth.login(data.username, data.password);
      console.log("JWT", access_token);
      localStorage.setItem("token", access_token);
      this.props.history.push("/");
    } catch (ex) {
      if (ex.response && ex.response.status === 400) {
        const errors = { ...this.state.errors };
        errors.username = ex.response.data;
        this.setState({ errors });
      }
    }
  };

var jwt = _tokenFactoryService.CreateAccessToken(user);
this.Response.Headers.Add("x-auth-token", jwt);

const response = await userService.register(this.state.data);
console.log(response);

var jwt = _tokenFactoryService.CreateAccessToken(data);
this.Response.Headers.Add("x-auth-token", jwt);
this.Response.Headers.Add("access-control-expose-headers", "x-auth-token");

class RegisterForm extends Form {
  // ...

  doSubmit = async () => {
    try {
      const response = await userService.register(this.state.data);
      console.log(response);
      localStorage.setItem("token", response.headers["x-auth-token"]);
      this.props.history.push("/");
    } catch (ex) {
      if (ex.response && ex.response.status === 400) {
        const errors = { ...this.state.errors }; // clone an object
        errors.username = ex.response.data;
        this.setState({ errors });
      }
    }
  };

و اگر از ویندوز سرور استفاده می‌کنید، باید Application Initialization را در قسمت Application Development فعال کنید:

- Open the Add Roles and Features Wizard.
- In the Select role services panel, open the Application Development node.
- Select the checkbox for Application Initialization.