diff --git a/WebApi/DataManagers/PlayerDataManager.cs b/WebApi/DataManagers/PlayerDataManager.cs
index 90eeee7..4d3dde3 100644
--- a/WebApi/DataManagers/PlayerDataManager.cs
+++ b/WebApi/DataManagers/PlayerDataManager.cs
@@ -91,5 +91,10 @@ namespace DataManagers
         {
             return (await manager.removePlayer(id))?.ToModel();
         }
+
+        public async Task<Player?> updatePlayer(int id, Player player)
+        {
+            return (await manager.updatePlayer(id, player.ToEntity()))?.ToModel();
+        }
     }
 }
diff --git a/WebApi/DataManagers/QuestionDataManager.cs b/WebApi/DataManagers/QuestionDataManager.cs
index f51a566..b677c49 100644
--- a/WebApi/DataManagers/QuestionDataManager.cs
+++ b/WebApi/DataManagers/QuestionDataManager.cs
@@ -54,35 +54,22 @@ namespace DataManagers
             return await Task.FromResult<Question?>((await manager.getQuestion(id))?.ToModel());
         }
 
+        public async Task<Question?> getQuestion(string content)
+        {
+            return (await manager.getQuestion(content))?.ToModel();
+        }
+
         public async Task<(int nbPages, IEnumerable<Question>? questions)> getQuestions(int nb, int count, QuestionOrderCriteria orderCriteria = QuestionOrderCriteria.ById)
         {
-            List<Question>? tmp = new List<Question>();
             var res = await manager.getQuestions(nb, count, orderCriteria);
-            if (res.questions == null) tmp = null;
-            else
-            {
-                foreach (var item in res.questions)
-                {
-                    tmp.Add(item.ToModel());
-                }
-            }
-            return await Task.FromResult<(int nbPages, IEnumerable<Question>? questions)>((res.nbPages, tmp));
+            return (res.nbPages, res.questions?.Select(q => q.ToModel()));
         }
 
         public async Task<(int nbPages, IEnumerable<Question>? questions)?> getQuestionsByChapterAndDifficulty(int idChapter, int difficulty, int nb, int count, QuestionOrderCriteria orderCriteria = QuestionOrderCriteria.ById)
         {
-            List<Question>? tmp = new List<Question>();
             var res = await manager.getQuestionsByChapterAndDifficulty(idChapter, difficulty, nb, count, orderCriteria);
-            if (res == null) return await Task.FromResult<(int nbPages, IEnumerable<Question>? questions)?>(null);
-            if (res.Value.questions == null) tmp = null;
-            else
-            {
-                foreach (var item in res.Value.questions)
-                {
-                    tmp.Add(item.ToModel());
-                }
-            }
-            return await Task.FromResult<(int nbPages, IEnumerable<Question>? questions)>((res.Value.nbPages, tmp));
+            if (res == null) return null;
+            return (res?.nbPages ?? getNbQuestions()/count, res?.questions?.Select(q => q.ToModel()));
         }
 
         public async Task<Question?> removeQuestion(Question question)
diff --git a/WebApi/EntityManagers/PlayerEntityManager.cs b/WebApi/EntityManagers/PlayerEntityManager.cs
index a64db9d..a1ce3c4 100644
--- a/WebApi/EntityManagers/PlayerEntityManager.cs
+++ b/WebApi/EntityManagers/PlayerEntityManager.cs
@@ -99,5 +99,16 @@ namespace EntityManagers
             await dbContext.SaveChangesAsync();
             return await Task.FromResult<PlayerEntity?>(tmp);
         }
+
+        public async Task<PlayerEntity?> updatePlayer(int id, PlayerEntity player)
+        {
+            if (dbContext.Players.Where(p => p.Nickname == player.Nickname).Count() > 0) return null;
+            var tmp = await getPlayer(id);
+            if (tmp == null) return null;
+            tmp.Nickname = player.Nickname;
+            tmp.HashedPassword = player.HashedPassword;
+            await dbContext.SaveChangesAsync();
+            return tmp;
+        }
     }
 }
diff --git a/WebApi/EntityManagers/QuestionEntityManager.cs b/WebApi/EntityManagers/QuestionEntityManager.cs
index 1ea7c39..3d2c5ca 100644
--- a/WebApi/EntityManagers/QuestionEntityManager.cs
+++ b/WebApi/EntityManagers/QuestionEntityManager.cs
@@ -14,6 +14,8 @@ namespace EntityManagers
 {
     public class QuestionEntityManager(MyDbContext dbContext) : IQuestionManager<QuestionEntity>
     {
+        private const int secondDifficultyBorn = 50;
+        private const int thirdDifficultyBorn = 150;
         private MyDbContext dbContext = dbContext;
 
         private IQueryable<QuestionEntity> trier(IQueryable<QuestionEntity> query, QuestionOrderCriteria orderCriteria)
@@ -36,14 +38,14 @@ namespace EntityManagers
 
         public async Task<QuestionEntity> addQuestion(QuestionEntity question)
         {
-            var tmp = await dbContext.Questions.Where(q => q.Equals(question)).FirstOrDefaultAsync();
+            var tmp = await getQuestion(question.Content);
             if (tmp != null) // <=> he already exist
             {
                 return tmp!;
             }
             dbContext.Questions.Add(question);
             await dbContext.SaveChangesAsync();
-            return await dbContext.Questions.Where(q => q.Equals(question)).FirstAsync();
+            return await dbContext.Questions.SingleAsync(q => q.Content == question.Content);
         }
 
         public async Task<IEnumerable<QuestionEntity>> addQuestions(IEnumerable<QuestionEntity> questions)
@@ -76,29 +78,29 @@ namespace EntityManagers
 
         public async Task<(int nbPages, IEnumerable<QuestionEntity>? questions)?> getQuestionsByChapterAndDifficulty(int idChapter, int difficulty, int nb, int count, QuestionOrderCriteria orderCriteria = QuestionOrderCriteria.ById)
         {
-            if (nb < 0 || count < 0 || difficulty < 1 || difficulty > 3 || !dbContext.Chapters.Where(c => c.Id == idChapter).AnyAsync().Result)
+            if (nb < 0 || count < 0 || difficulty < 1 || difficulty > 3 || !(await dbContext.Chapters.Where(c => c.Id == idChapter).AnyAsync()))
                 return await Task.FromResult<(int nbPages, IEnumerable<QuestionEntity>? questions)?>(null);
             int nbEl = getNbQuestions();
             if (nb > nbEl / count) return await Task.FromResult<(int nbPages, IEnumerable<QuestionEntity>? questions)?>((nbEl / count, null));
-            var tmp = trier(dbContext.Questions, orderCriteria);
+            var tmp = trier(dbContext.Questions.Where(q => q.IdChapter == idChapter && q.Difficulty == difficulty), orderCriteria);
             return await Task.FromResult<(int nbPages, IEnumerable<QuestionEntity>? questions)?>((nbEl / count, tmp.Skip((nb - 1) * count).Take(count)));
         }
 
         public async Task<QuestionEntity?> removeQuestion(QuestionEntity question)
         {
-            var tmp = await dbContext.Questions.Where(q => q.Equals(question)).FirstOrDefaultAsync();
+            var tmp = await getQuestion(question.Content);
             if (tmp == null) return tmp;
             dbContext.Questions.Remove(tmp);
             await dbContext.SaveChangesAsync();
             return tmp;
         }
 
-        public Task<QuestionEntity?> removeQuestion(int id)
+        public async Task<QuestionEntity?> removeQuestion(int id)
         {
-            var tmp = getQuestion(id);
-            if (tmp.Result == null) return tmp;
-            dbContext.Questions.Remove(tmp.Result);
-            dbContext.SaveChangesAsync();
+            var tmp = await getQuestion(id);
+            if (tmp == null) return tmp;
+            dbContext.Questions.Remove(tmp);
+            await dbContext.SaveChangesAsync();
             return tmp;
         }
 
@@ -121,10 +123,15 @@ namespace EntityManagers
             if (tmp.Result == null) return await tmp;
             tmp.Result.NbFalls++;
             int nbFalls = tmp.Result.NbFalls;
-            if (nbFalls == 50) tmp.Result.Difficulty = 2;
-            if (nbFalls == 150) tmp.Result.Difficulty = 3;
+            if (nbFalls == secondDifficultyBorn) tmp.Result.Difficulty = 2;
+            if (nbFalls == thirdDifficultyBorn) tmp.Result.Difficulty = 3;
             await dbContext.SaveChangesAsync();
             return await tmp;
         }
+
+        public async Task<QuestionEntity?> getQuestion(string content)
+        {
+            return await dbContext.Questions.SingleOrDefaultAsync(q => q.Content == content);
+        }
     }
 }
diff --git a/WebApi/ManagerInterfaces/IPlayerManager.cs b/WebApi/ManagerInterfaces/IPlayerManager.cs
index 6fd5530..4649dde 100644
--- a/WebApi/ManagerInterfaces/IPlayerManager.cs
+++ b/WebApi/ManagerInterfaces/IPlayerManager.cs
@@ -115,5 +115,18 @@ namespace ManagerInterfaces
         /// or null if the player does not exist
         /// </returns>
         public Task<int?> getMaxScorePlayer(int id);
+
+        /// <summary>
+        /// update a player
+        /// </summary>
+        /// <param name="id">the id of the player to update</param>
+        /// <param name="player">a player class which contains all properties to changes</param>
+        /// <returns>
+        /// the player changed or null
+        /// if the id doesn't exist or
+        /// if the player nickname is
+        /// already used
+        /// </returns>
+        public Task<T?> updatePlayer(int id, T player);
     }
 }
diff --git a/WebApi/ManagerInterfaces/IQuestionManager.cs b/WebApi/ManagerInterfaces/IQuestionManager.cs
index 4bbe62c..64fa8a6 100644
--- a/WebApi/ManagerInterfaces/IQuestionManager.cs
+++ b/WebApi/ManagerInterfaces/IQuestionManager.cs
@@ -69,6 +69,15 @@ namespace ManagerInterfaces
         /// </returns>
         public Task<T?> getQuestion(int id);
         /// <summary>
+        /// get a question with a content
+        /// </summary>
+        /// <param name="content">the content of the question</param>
+        /// <returns>
+        /// the question that corresponde
+        /// to the content or null if there isn't any
+        /// </returns>
+        public Task<T?> getQuestion(string content);
+        /// <summary>
         /// modified a question with an id
         /// </summary>
         /// <param name="id">the id of the question</param>
diff --git a/WebApi/ServiceManagers/PlayerServiceManager.cs b/WebApi/ServiceManagers/PlayerServiceManager.cs
index 1475d90..62b531c 100644
--- a/WebApi/ServiceManagers/PlayerServiceManager.cs
+++ b/WebApi/ServiceManagers/PlayerServiceManager.cs
@@ -86,5 +86,10 @@ namespace ServiceManagers
         {
             return (await manager.removePlayer(id))?.ToDto();
         }
+
+        public async Task<PlayerDto?> updatePlayer(int id, PlayerDto player)
+        {
+            return (await manager.updatePlayer(id, player.ToModel()))?.ToDto();
+        }
     }
 }
diff --git a/WebApi/ServiceManagers/QuestionServiceManager.cs b/WebApi/ServiceManagers/QuestionServiceManager.cs
index 229135f..2c9605b 100644
--- a/WebApi/ServiceManagers/QuestionServiceManager.cs
+++ b/WebApi/ServiceManagers/QuestionServiceManager.cs
@@ -51,35 +51,22 @@ namespace ServiceManagers
             return await Task.FromResult<QuestionDto?>((await manager.getQuestion(id))?.ToDto());
         }
 
+        public async Task<QuestionDto?> getQuestion(string content)
+        {
+            return (await manager.getQuestion(content))?.ToDto();
+        }
+
         public async Task<(int nbPages, IEnumerable<QuestionDto>? questions)> getQuestions(int nb, int count, QuestionOrderCriteria orderCriteria = QuestionOrderCriteria.ById)
         {
-            List<QuestionDto>? tmp = new List<QuestionDto>();
             var res = await manager.getQuestions(nb, count, orderCriteria);
-            if (res.questions == null) tmp = null;
-            else
-            {
-                foreach (var item in res.questions)
-                {
-                    tmp.Add(item.ToDto());
-                }
-            }
-            return await Task.FromResult<(int nbPages, IEnumerable<QuestionDto>? questions)>((res.nbPages, tmp));
+            return (res.nbPages, res.questions?.Select(q => q.ToDto()));
         }
 
         public async Task<(int nbPages, IEnumerable<QuestionDto>? questions)?> getQuestionsByChapterAndDifficulty(int idChapter, int difficulty, int nb, int count, QuestionOrderCriteria orderCriteria = QuestionOrderCriteria.ById)
         {
-            List<QuestionDto>? tmp = new List<QuestionDto>();
             var res = await manager.getQuestionsByChapterAndDifficulty(idChapter, difficulty, nb, count, orderCriteria);
-            if (res == null) return await Task.FromResult<(int nbPages, IEnumerable<QuestionDto>? questions)?>(null);
-            if (res.Value.questions == null) tmp = null;
-            else
-            {
-                foreach (var item in res.Value.questions)
-                {
-                    tmp.Add(item.ToDto());
-                }
-            }
-            return await Task.FromResult<(int nbPages, IEnumerable<QuestionDto>? questions)>((res.Value.nbPages, tmp));
+            if (res == null) return null;
+            return (res?.nbPages ?? getNbQuestions() / count, res?.questions?.Select(q => q.ToDto()));
         }
 
         public async Task<QuestionDto?> removeQuestion(QuestionDto question)
diff --git a/WebApi/WebApi/Controllers/FrontController.cs b/WebApi/WebApi/Controllers/FrontController.cs
index f264a5d..d8c7227 100644
--- a/WebApi/WebApi/Controllers/FrontController.cs
+++ b/WebApi/WebApi/Controllers/FrontController.cs
@@ -2,15 +2,22 @@
 using DbConnectionLibrairie;
 using DTOs;
 using EntityManagers;
+using Microsoft.AspNetCore.Components;
 using Microsoft.AspNetCore.Mvc;
 using Microsoft.Extensions.Logging;
 using OrderCriterias;
 using ServiceManagers;
+using RouteAttribute = Microsoft.AspNetCore.Mvc.RouteAttribute;
 
 namespace WebApi.Controllers
 {
+    [ApiVersion("1.0")]
+    [Route("api/v{version:apiversion}")]
     public class FrontController
     {
+        [Inject]
+        public MyDbContext dbContext { get; set; }
+
         // all secondary controllers
         private AdministratorController administratorController;
         private ChapterController chapterController;
@@ -19,7 +26,6 @@ namespace WebApi.Controllers
         private QuestionController questionController;
 
         public FrontController(
-            MyDbContext dbContext,
             Logger<AdministratorController> logAdmin,
             Logger<ChapterController> logChapter,
             Logger<LobbyController> logLobby,
@@ -34,12 +40,12 @@ namespace WebApi.Controllers
                 new LobbyServiceManager(new LobbyDataManager(new LobbyEntityManager(dbContext))),
                 new PlayerServiceManager(new PlayerDataManager(new PlayerEntityManager(dbContext))),
                 new QuestionServiceManager(new QuestionDataManager(new QuestionEntityManager(dbContext)))
-                ) ;
+                );
             administratorController = new AdministratorController(unity, logAdmin);
             chapterController = new ChapterController(unity, logChapter);
             lobbyController = new LobbyController(unity, logLobby);
-            //playerController = new PlayerController(unity, logPlayer);
-            //questionController = new QuestionController(unity, logQuestion);
+            playerController = new PlayerController(unity, logPlayer);
+            questionController = new QuestionController(unity, logQuestion);
         }
 
         /// <summary>
@@ -357,5 +363,234 @@ namespace WebApi.Controllers
         public async Task<IActionResult> GetLobby(int id)
             => await lobbyController.GetLobby(id);
 
+        /// <summary>
+        /// add a player
+        /// </summary>
+        /// <param name="player">the player to add</param>
+        /// <returns>
+        /// status code :
+        /// 200 if the player is added
+        /// 202 if the player is added
+        /// 208 if the player was already in the database
+        /// 500 if there was an internal error that doesn't allow to continue
+        /// return content :
+        /// no content when status code = 200
+        /// player added when status code = 202
+        /// player already in the database that equals the one we wanted to add when status code = 208
+        /// no content when status code = 500
+        /// </returns>
+        [HttpPost("add/player")]
+        [ProducesResponseType(StatusCodes.Status200OK)]
+        [ProducesResponseType(StatusCodes.Status202Accepted)]
+        [ProducesResponseType(StatusCodes.Status208AlreadyReported)]
+        [ProducesResponseType(StatusCodes.Status500InternalServerError)]
+        public async Task<IActionResult> PostPlayer([FromBody] PlayerDto player)
+            => await playerController.PostPlayer(player);
+
+        /// <summary>
+        /// get a part of all players
+        /// </summary>
+        /// <param name="page">the actual page</param>
+        /// <param name="count">number of T element in a page</param>
+        /// <param name="orderCriteria">the order criteria</param>
+        /// <returns>
+        /// status code :
+        /// 200 if we got a set
+        /// 204 if we got an empty set
+        /// 400 if we got nothing
+        /// 
+        /// return content :
+        /// a tuple of the number of page and
+        /// all players in the database for
+        /// the page nb if status code = 200
+        /// the number of page for count element if status code = 204
+        /// nothing if status code = 400
+        /// </returns>
+        [HttpGet("all/players")]
+        [ProducesResponseType(StatusCodes.Status200OK)]
+        [ProducesResponseType(StatusCodes.Status204NoContent)]
+        [ProducesResponseType(StatusCodes.Status500InternalServerError)]
+        public async Task<IActionResult> GetSomePlayers([FromQuery] int page, int count = 10, PlayerOrderCriteria orderCriteria = PlayerOrderCriteria.ById)
+            => await playerController.GetSomePlayers(page, count, orderCriteria);
+
+        /// <summary>
+        /// delete a player
+        /// </summary>
+        /// <param name="id">the id of the player to delete</param>
+        /// <returns>
+        /// <returns>
+        /// status code :
+        /// 200 if the player is removed
+        /// 204 if the player is removed
+        /// 400 if the id is incorrect
+        /// 500 if there was an internal error that doesn't allow to continue
+        /// return content :
+        /// aministrator deleted when status code = 200
+        /// no content when status code = 204
+        /// no content when status code = 400
+        /// no content when status code = 500
+        /// </returns>
+        [HttpDelete("delete/player")]
+        [ProducesResponseType(StatusCodes.Status200OK)]
+        [ProducesResponseType(StatusCodes.Status204NoContent)]
+        [ProducesResponseType(StatusCodes.Status400BadRequest)]
+        [ProducesResponseType(StatusCodes.Status500InternalServerError)]
+        public async Task<IActionResult> DeletePlayer(int id)
+            => await playerController.DeletePlayer(id);
+
+        /// <summary>
+        /// get a player
+        /// </summary>
+        /// <param name="id">the id of the player</param>
+        /// <returns>
+        /// status code :
+        /// 200 when we got a player
+        /// 204 when we got null
+        /// 
+        /// return content :
+        /// the player that correspond to the id when status code = 200
+        /// nothing when status code = 204
+        /// </returns>
+        [HttpGet("player")]
+        [ProducesResponseType(StatusCodes.Status200OK)]
+        [ProducesResponseType(StatusCodes.Status204NoContent)]
+        public async Task<IActionResult> GetPlayer(int id)
+            => await playerController.GetPlayer(id);
+
+        /// <summary>
+        /// update a player
+        /// </summary>
+        /// <param name="id">the id of the player</param>
+        /// <returns>
+        /// status code :
+        /// 200 when we got a player
+        /// 204 when we got null
+        /// 208 when the nickname is already used
+        /// return content :
+        /// the player that correspond to the id when status code = 200
+        /// nothing when status code = 204
+        /// the player which have this nickname when status code = 208
+        /// </returns>
+        [HttpPut("update/player")]
+        [ProducesResponseType(StatusCodes.Status200OK)]
+        [ProducesResponseType(StatusCodes.Status204NoContent)]
+        [ProducesResponseType(StatusCodes.Status208AlreadyReported)]
+        public async Task<IActionResult> PutPlayer([FromQuery] int id, [FromBody] PlayerDto player)
+            => await playerController.PutPlayer(id, player);
+
+        /// <summary>
+        /// add a question
+        /// </summary>
+        /// <param name="question">the question to add</param>
+        /// <returns>
+        /// status code :
+        /// 200 if the question is added
+        /// 202 if the question is added
+        /// 208 if the question was already in the database
+        /// 500 if there was an internal error that doesn't allow to continue
+        /// return content :
+        /// no content when status code = 200
+        /// question added when status code = 202
+        /// question already in the database that equals the one we wanted to add when status code = 208
+        /// no content when status code = 500
+        /// </returns>
+        [HttpPost("add/question")]
+        [ProducesResponseType(StatusCodes.Status200OK)]
+        [ProducesResponseType(StatusCodes.Status202Accepted)]
+        [ProducesResponseType(StatusCodes.Status208AlreadyReported)]
+        [ProducesResponseType(StatusCodes.Status500InternalServerError)]
+        public async Task<IActionResult> PostQuestion([FromBody] QuestionDto question)
+            => await questionController.PostQuestion(question);
+
+        /// <summary>
+        /// get a part of all questions
+        /// </summary>
+        /// <param name="page">the actual page</param>
+        /// <param name="count">number of T element in a page</param>
+        /// <param name="orderCriteria">the order criteria</param>
+        /// <returns>
+        /// status code :
+        /// 200 if we got a set
+        /// 204 if we got an empty set
+        /// 400 if we got nothing
+        /// 
+        /// return content :
+        /// a tuple of the number of page and
+        /// all questions in the database for
+        /// the page nb if status code = 200
+        /// the number of page for count element if status code = 204
+        /// nothing if status code = 400
+        /// </returns>
+        [HttpGet("questions/all")]
+        [ProducesResponseType(StatusCodes.Status200OK)]
+        [ProducesResponseType(StatusCodes.Status204NoContent)]
+        [ProducesResponseType(StatusCodes.Status400BadRequest)]
+        public async Task<IActionResult> GetSomeQuestions([FromQuery] int page, int count = 10, QuestionOrderCriteria orderCriteria = QuestionOrderCriteria.ById)
+            => await questionController.GetSomeQuestions(page, count, orderCriteria);
+
+        /// <summary>
+        /// delete a question
+        /// </summary>
+        /// <param name="id">the id of the question to delete</param>
+        /// <returns>
+        /// status code :
+        /// 200 if the question is removed
+        /// 204 if the question is removed
+        /// 400 if the id is incorrect
+        /// 500 if there was an internal error that doesn't allow to continue
+        /// return content :
+        /// aministrator deleted when status code = 200
+        /// no content when status code = 204
+        /// no content when status code = 400
+        /// no content when status code = 500
+        /// </returns>
+        [HttpDelete("delete/question")]
+        [ProducesResponseType(StatusCodes.Status200OK)]
+        [ProducesResponseType(StatusCodes.Status204NoContent)]
+        [ProducesResponseType(StatusCodes.Status400BadRequest)]
+        [ProducesResponseType(StatusCodes.Status500InternalServerError)]
+        public async Task<IActionResult> DeleteQuestion([FromQuery] int id)
+            => await questionController.DeleteQuestion(id);
+
+        /// <summary>
+        /// get a question
+        /// </summary>
+        /// <param name="id">the id of the question</param>
+        /// <returns>
+        /// status code :
+        /// 200 when we got a question
+        /// 204 when we got null
+        /// 
+        /// return content :
+        /// the question that correspond to the id when status code = 200
+        /// nothing when status code = 204
+        /// </returns>
+        [HttpGet("question")]
+        [ProducesResponseType(StatusCodes.Status200OK)]
+        [ProducesResponseType(StatusCodes.Status204NoContent)]
+        public async Task<IActionResult> GetQuestion([FromQuery] int id)
+            => await questionController.GetQuestion(id);
+
+        /// <summary>
+        /// update a question
+        /// </summary>
+        /// <param name="id">the id of the question</param>
+        /// <returns>
+        /// status code :
+        /// 200 when we got a question
+        /// 204 when we got null
+        /// 208 when the nickname is already used
+        /// return content :
+        /// the question that correspond to the id when status code = 200
+        /// nothing when status code = 204
+        /// the question which have this nickname when status code = 208
+        /// </returns>
+        [HttpPut]
+        [ProducesResponseType(StatusCodes.Status200OK)]
+        [ProducesResponseType(StatusCodes.Status204NoContent)]
+        [ProducesResponseType(StatusCodes.Status208AlreadyReported)]
+        public async Task<IActionResult> PutQuestion(int id, QuestionDto question)
+            => await questionController.PutQuestion(id, question);
+
     }
 }
diff --git a/WebApi/WebApi/Controllers/PlayerController.cs b/WebApi/WebApi/Controllers/PlayerController.cs
index 696c6a9..fcd2f0f 100644
--- a/WebApi/WebApi/Controllers/PlayerController.cs
+++ b/WebApi/WebApi/Controllers/PlayerController.cs
@@ -1,6 +1,247 @@
-namespace WebApi.Controllers
+using DTOs;
+using Microsoft.AspNetCore.Mvc;
+using OrderCriterias;
+
+namespace WebApi.Controllers
 {
-    public class PlayerController
+    public class PlayerController : ControllerBase
     {
+        private Unit unity;
+
+        private readonly Logger<PlayerController> logger;
+
+        public PlayerController(Unit unit, Logger<PlayerController> logger)
+        {
+            this.unity = unit;
+            this.logger = logger;
+        }
+
+        /// <summary>
+        /// add a player
+        /// </summary>
+        /// <param name="player">the player to add</param>
+        /// <returns>
+        /// status code :
+        /// 200 if the player is added
+        /// 202 if the player is added
+        /// 208 if the player was already in the database
+        /// 500 if there was an internal error that doesn't allow to continue
+        /// return content :
+        /// no content when status code = 200
+        /// player added when status code = 202
+        /// player already in the database that equals the one we wanted to add when status code = 208
+        /// no content when status code = 500
+        /// </returns>
+        public async Task<IActionResult> PostPlayer(PlayerDto player)
+        {
+            int count = unity.getNbPlayers(); // count : number of elements before opperation
+            var tmp = await unity.addPlayer(player); //  tmp : player recieve by the addPlayer method
+            if (unity.getNbPlayers() == count) // <=> not added
+            {
+                if (tmp.Nickname == player.Nickname)
+                {
+                    // it was already in the database
+                    logger.LogInformation(message: $"want to add a player already in the database : {tmp.ToString()}");
+                    return StatusCode(208, tmp);
+                }
+                else
+                {
+                    // we recieve a player already in the database
+                    // that should be equal to the player that we
+                    // wanted to add but it isn't
+                    logger.LogCritical(message: "controller's add fail (already in the database) but\nplayer" +
+                        $" recieve isn't the same as the one we wanted to add.\n" +
+                        $"Player recieve : {tmp.ToString()}\nplayer to add : {player.ToString()}");
+                    return StatusCode(500);
+                }
+            }
+            // added
+            if (tmp.Nickname == player.Nickname)
+            {
+                logger.LogTrace(message: $"player added : {tmp.ToString()}");
+                // the player has been added and we recieved him
+                return StatusCode(202, tmp);
+            }
+            else
+            {
+                // the player may be added but we do not recieved him
+                try
+                {
+                    if (unity.getPlayer(player.Nickname) != null)
+                    {
+                        // he is added
+                        logger.LogError(message: $"player added but not recieved");
+                        return Ok(); // not 202 to make a difference between 2 cases
+                    }
+                    else
+                    {
+                        // he is not added
+                        logger.LogCritical(message: "player that we wanted to add not added\nand we have added another one");
+                        if (unity.getPlayer(player.Nickname) == null) // <=> not added
+                            return StatusCode(500);
+                    }
+                }
+                catch (Exception)
+                {
+                    return StatusCode(500);
+                }
+            }
+            logger.LogError(message: "this case should not append");
+            return StatusCode(500);
+        }
+
+        /// <summary>
+        /// get a part of all players
+        /// </summary>
+        /// <param name="page">the actual page</param>
+        /// <param name="count">number of T element in a page</param>
+        /// <param name="orderCriteria">the order criteria</param>
+        /// <returns>
+        /// status code :
+        /// 200 if we got a set
+        /// 204 if we got an empty set
+        /// 400 if we got nothing
+        /// 
+        /// return content :
+        /// a tuple of the number of page and
+        /// all players in the database for
+        /// the page nb if status code = 200
+        /// the number of page for count element if status code = 204
+        /// nothing if status code = 400
+        /// </returns>
+        public async Task<IActionResult> GetSomePlayers(int page, int count = 10, PlayerOrderCriteria orderCriteria = PlayerOrderCriteria.ById)
+        {
+            var tmp = await unity.getPlayers(page, count, orderCriteria);
+            if (tmp.players == null)
+            {
+                logger.LogInformation(message: "get player : bad request (page or/and count incorrect)");
+                return BadRequest(tmp.nbPages);
+            }
+            else if (tmp.players.Count() == 0)
+            {
+                logger.LogWarning(message: $"get player : no content. number of element : {unity.getNbPlayers()}, page wanted : {page}, number of elements in a page : {count}");
+                return NoContent();
+            }
+            else
+            {
+                logger.LogTrace(message: $"get players : page = {page}, count = {count}, order criteria = {orderCriteria switch
+                {
+                    PlayerOrderCriteria.ById => "byId",
+                    PlayerOrderCriteria.ByNickname => "byNickname",
+                    _ => "none"
+                }}");
+                return Ok(tmp);
+            }
+        }
+
+        /// <summary>
+        /// delete a player
+        /// </summary>
+        /// <param name="id">the id of the player to delete</param>
+        /// <returns>
+        /// <returns>
+        /// status code :
+        /// 200 if the player is removed
+        /// 204 if the player is removed
+        /// 400 if the id is incorrect
+        /// 500 if there was an internal error that doesn't allow to continue
+        /// return content :
+        /// aministrator deleted when status code = 200
+        /// no content when status code = 204
+        /// no content when status code = 400
+        /// no content when status code = 500
+        /// </returns>
+        public async Task<IActionResult> DeletePlayer(int id)
+        {
+            if (id < 0)
+            {
+                logger.LogError("want to delete a player with an id less than 0");
+                return BadRequest();
+            }
+            int count = unity.getNbPlayers(); // count : number of elements before opperation
+            var tmp = await unity.removePlayer(id);
+            if (tmp == null) // we don't recieve the player
+            {
+                if (unity.getNbPlayers() == count) // he is not deleted 
+                {
+                    if (unity.getPlayer(id) != null)
+                    {
+                        logger.LogCritical(message: "remove player fail : player not removed and not recieved");
+                        return StatusCode(500);
+                    }
+                    else
+                    {
+                        logger.LogInformation(message: "trying to remove a player with an id who don't exist");
+                        return BadRequest();
+                    }
+                }
+                else // he may be deleted
+                {
+                    if (unity.getPlayer(id) == null) // he must be deleted
+                    {
+                        logger.LogError(message: "player removed but not returned");
+                        return NoContent();
+                    }
+                    else // he is not deleted
+                    {
+                        logger.LogCritical(message: "remove player fail : player to remove not remove\ninstead, anotherone is deleted and we recieved nothing");
+                        return StatusCode(500);
+                    }
+                }
+            }
+            if (unity.getNbPlayers() == count)
+            {
+                // <=> we have recieved a player which should be deleted
+                // but since we have the same number of player than
+                // before deletion, it isn't deleted
+                logger.LogCritical(message: $"player \"{tmp.ToString()}\"should be delete but it isn't");
+                return StatusCode(500);
+            }
+            logger.LogTrace(message: $"player removed {tmp.ToString()}");
+            return Ok(tmp);
+        }
+
+        /// <summary>
+        /// get a player
+        /// </summary>
+        /// <param name="id">the id of the player</param>
+        /// <returns>
+        /// status code :
+        /// 200 when we got a player
+        /// 204 when we got null
+        /// 
+        /// return content :
+        /// the player that correspond to the id when status code = 200
+        /// nothing when status code = 204
+        /// </returns>
+        public async Task<IActionResult> GetPlayer(int id)
+        {
+            var tmp = await unity.getPlayer(id);
+            if (tmp == null) return NoContent();
+            return Ok(tmp);
+        }
+
+        /// <summary>
+        /// update a player
+        /// </summary>
+        /// <param name="id">the id of the player</param>
+        /// <returns>
+        /// status code :
+        /// 200 when we got a player
+        /// 204 when we got null
+        /// 208 when the nickname is already used
+        /// return content :
+        /// the player that correspond to the id when status code = 200
+        /// nothing when status code = 204
+        /// the player which have this nickname when status code = 208
+        /// </returns>
+        public async Task<IActionResult> PutPlayer(int id, PlayerDto player)
+        {
+            var tmp = await unity.getPlayer(player.Nickname);
+            if (tmp != null) return StatusCode(208);
+            tmp = await unity.updatePlayer(id, player);
+            if (tmp == null) return NoContent();
+            return Ok(tmp);
+        }
     }
 }
diff --git a/WebApi/WebApi/Controllers/QuestionController.cs b/WebApi/WebApi/Controllers/QuestionController.cs
index 58b51cd..245b9b7 100644
--- a/WebApi/WebApi/Controllers/QuestionController.cs
+++ b/WebApi/WebApi/Controllers/QuestionController.cs
@@ -1,6 +1,249 @@
-namespace WebApi.Controllers
+using DTOs;
+using Microsoft.AspNetCore.Mvc;
+using OrderCriterias;
+
+namespace WebApi.Controllers
 {
-    public class QuestionController
+    public class QuestionController : ControllerBase
     {
+        private Unit unity;
+
+        private readonly Logger<QuestionController> logger;
+
+        public QuestionController(Unit unit, Logger<QuestionController> logger)
+        {
+            this.unity = unit;
+            this.logger = logger;
+        }
+
+        /// <summary>
+        /// add a question
+        /// </summary>
+        /// <param name="question">the question to add</param>
+        /// <returns>
+        /// status code :
+        /// 200 if the question is added
+        /// 202 if the question is added
+        /// 208 if the question was already in the database
+        /// 500 if there was an internal error that doesn't allow to continue
+        /// return content :
+        /// no content when status code = 200
+        /// question added when status code = 202
+        /// question already in the database that equals the one we wanted to add when status code = 208
+        /// no content when status code = 500
+        /// </returns>
+        public async Task<IActionResult> PostQuestion(QuestionDto question)
+        {
+            int count = unity.getNbQuestions(); // count : number of elements before opperation
+            var tmp = await unity.addQuestion(question); //  tmp : question recieve by the addQuestion method
+            if (unity.getNbQuestions() == count) // <=> not added
+            {
+                if (tmp.Content == question.Content)
+                {
+                    // it was already in the database
+                    logger.LogInformation(message: $"want to add a question already in the database : {tmp.ToString()}");
+                    return StatusCode(208, tmp);
+                }
+                else
+                {
+                    // we recieve a question already in the database
+                    // that should be equal to the question that we
+                    // wanted to add but it isn't
+                    logger.LogCritical(message: "controller's add fail (already in the database) but\nquestion" +
+                        $" recieve isn't the same as the one we wanted to add.\n" +
+                        $"Question recieve : {tmp.ToString()}\nquestion to add : {question.ToString()}");
+                    return StatusCode(500);
+                }
+            }
+            // added
+            if (tmp.Content == question.Content)
+            {
+                logger.LogTrace(message: $"question added : {tmp.ToString()}");
+                // the question has been added and we recieved him
+                return StatusCode(202, tmp);
+            }
+            else
+            {
+                // the question may be added but we do not recieved him
+                try
+                {
+                    if (unity.getQuestion(question.Content) != null)
+                    {
+                        // he is added
+                        logger.LogError(message: $"question added but not recieved");
+                        return Ok(); // not 202 to make a difference between 2 cases
+                    }
+                    else
+                    {
+                        // he is not added
+                        logger.LogCritical(message: "question that we wanted to add not added\nand we have added another one");
+                        if (unity.getQuestion(question.Content) == null) // <=> not added
+                            return StatusCode(500);
+                    }
+                }
+                catch (Exception)
+                {
+                    return StatusCode(500);
+                }
+            }
+            logger.LogError(message: "this case should not append");
+            return StatusCode(500);
+        }
+
+        /// <summary>
+        /// get a part of all questions
+        /// </summary>
+        /// <param name="page">the actual page</param>
+        /// <param name="count">number of T element in a page</param>
+        /// <param name="orderCriteria">the order criteria</param>
+        /// <returns>
+        /// status code :
+        /// 200 if we got a set
+        /// 204 if we got an empty set
+        /// 400 if we got nothing
+        /// 
+        /// return content :
+        /// a tuple of the number of page and
+        /// all questions in the database for
+        /// the page nb if status code = 200
+        /// the number of page for count element if status code = 204
+        /// nothing if status code = 400
+        /// </returns>
+        public async Task<IActionResult> GetSomeQuestions(int page, int count = 10, QuestionOrderCriteria orderCriteria = QuestionOrderCriteria.ById)
+        {
+            var tmp = await unity.getQuestions(page, count, orderCriteria);
+            if (tmp.questions == null)
+            {
+                logger.LogInformation(message: "get question : bad request (page or/and count incorrect)");
+                return BadRequest(tmp.nbPages);
+            }
+            else if (tmp.questions.Count() == 0)
+            {
+                logger.LogWarning(message: $"get question : no content. number of element : {unity.getNbQuestions()}, page wanted : {page}, number of elements in a page : {count}");
+                return NoContent();
+            }
+            else
+            {
+                logger.LogTrace(message: $"get questions : page = {page}, count = {count}, order criteria = {orderCriteria switch
+                {
+                    QuestionOrderCriteria.ById => "byId",
+                    QuestionOrderCriteria.ByContent => "byContent",
+                    QuestionOrderCriteria.ByIdChapter => "byIdChapter",
+                    QuestionOrderCriteria.ByNbFalls => "byNbFalls",
+                    QuestionOrderCriteria.ByDifficulty => "byDifficulty",
+                    _ => "none"
+                }}");
+                return Ok(tmp);
+            }
+        }
+
+        /// <summary>
+        /// delete a question
+        /// </summary>
+        /// <param name="id">the id of the question to delete</param>
+        /// <returns>
+        /// status code :
+        /// 200 if the question is removed
+        /// 204 if the question is removed
+        /// 400 if the id is incorrect
+        /// 500 if there was an internal error that doesn't allow to continue
+        /// return content :
+        /// aministrator deleted when status code = 200
+        /// no content when status code = 204
+        /// no content when status code = 400
+        /// no content when status code = 500
+        /// </returns>
+        public async Task<IActionResult> DeleteQuestion(int id)
+        {
+            if (id < 0)
+            {
+                logger.LogError("want to delete a question with an id less than 0");
+                return BadRequest();
+            }
+            int count = unity.getNbQuestions(); // count : number of elements before opperation
+            var tmp = await unity.removeQuestion(id);
+            if (tmp == null) // we don't recieve the question
+            {
+                if (unity.getNbQuestions() == count) // he is not deleted 
+                {
+                    if (unity.getQuestion(id) != null)
+                    {
+                        logger.LogCritical(message: "remove question fail : question not removed and not recieved");
+                        return StatusCode(500);
+                    }
+                    else
+                    {
+                        logger.LogInformation(message: "trying to remove a question with an id who don't exist");
+                        return BadRequest();
+                    }
+                }
+                else // he may be deleted
+                {
+                    if (unity.getQuestion(id) == null) // he must be deleted
+                    {
+                        logger.LogError(message: "question removed but not returned");
+                        return NoContent();
+                    }
+                    else // he is not deleted
+                    {
+                        logger.LogCritical(message: "remove question fail : question to remove not remove\ninstead, anotherone is deleted and we recieved nothing");
+                        return StatusCode(500);
+                    }
+                }
+            }
+            if (unity.getNbQuestions() == count)
+            {
+                // <=> we have recieved a question which should be deleted
+                // but since we have the same number of question than
+                // before deletion, it isn't deleted
+                logger.LogCritical(message: $"question \"{tmp.ToString()}\"should be delete but it isn't");
+                return StatusCode(500);
+            }
+            logger.LogTrace(message: $"question removed {tmp.ToString()}");
+            return Ok(tmp);
+        }
+
+        /// <summary>
+        /// get a question
+        /// </summary>
+        /// <param name="id">the id of the question</param>
+        /// <returns>
+        /// status code :
+        /// 200 when we got a question
+        /// 204 when we got null
+        /// 
+        /// return content :
+        /// the question that correspond to the id when status code = 200
+        /// nothing when status code = 204
+        /// </returns>
+        public async Task<IActionResult> GetQuestion(int id)
+        {
+            var tmp = await unity.getQuestion(id);
+            if (tmp == null) return NoContent();
+            return Ok(tmp);
+        }
+
+        /// <summary>
+        /// update a question
+        /// </summary>
+        /// <param name="id">the id of the question</param>
+        /// <returns>
+        /// status code :
+        /// 200 when we got a question
+        /// 204 when we got null
+        /// 208 when the nickname is already used
+        /// return content :
+        /// the question that correspond to the id when status code = 200
+        /// nothing when status code = 204
+        /// the question which have this nickname when status code = 208
+        /// </returns>
+        public async Task<IActionResult> PutQuestion(int id, QuestionDto question)
+        {
+            var tmp = await unity.getQuestion(question.Content);
+            if (tmp != null) return StatusCode(208);
+            tmp = await unity.updateQuestion(id, question);
+            if (tmp == null) return NoContent();
+            return Ok(tmp);
+        }
     }
 }
diff --git a/WebApi/WebApi/Program.cs b/WebApi/WebApi/Program.cs
index 48863a6..1523393 100644
--- a/WebApi/WebApi/Program.cs
+++ b/WebApi/WebApi/Program.cs
@@ -1,3 +1,5 @@
+using Microsoft.Extensions.DependencyInjection;
+
 var builder = WebApplication.CreateBuilder(args);
 
 // Add services to the container.
@@ -7,6 +9,8 @@ builder.Services.AddControllers();
 builder.Services.AddEndpointsApiExplorer();
 builder.Services.AddSwaggerGen();
 
+builder.Services.AddApiVersioning();
+
 var app = builder.Build();
 
 // Configure the HTTP request pipeline.
diff --git a/WebApi/WebApi/Unit.cs b/WebApi/WebApi/Unit.cs
index a97d88e..e7deba3 100644
--- a/WebApi/WebApi/Unit.cs
+++ b/WebApi/WebApi/Unit.cs
@@ -252,6 +252,11 @@ namespace WebApi
             return PlayerManager.getMaxScorePlayer(id);
         }
 
+        public Task<PlayerDto?> updatePlayer(int id, PlayerDto player)
+        {
+            return PlayerManager.updatePlayer(id, player);
+        }
+
         public int getNbQuestions()
         {
             return QuestionManager.getNbQuestions();
@@ -301,5 +306,10 @@ namespace WebApi
         {
             return QuestionManager.getQuestionsByChapterAndDifficulty(idChapter, difficulty, nb, count, orderCriteria);
         }
+
+        public Task<QuestionDto?> getQuestion(string content)
+        {
+            return QuestionManager.getQuestion(content);
+        }
     }
 }