diff --git a/Collaborateur_Epa_Back/espacecollab.backend.api/Register.cs b/Collaborateur_Epa_Back/espacecollab.backend.api/Register.cs
index a6b0801..18fcdae 100644
--- a/Collaborateur_Epa_Back/espacecollab.backend.api/Register.cs
+++ b/Collaborateur_Epa_Back/espacecollab.backend.api/Register.cs
@@ -11,7 +11,8 @@ internal static class Register
 {
     public static void InjectDependencies(IServiceCollection services, SqlOption contextOptions)
     {
-        services.AddScoped<CollaborateursService>();
+        services.AddCors();
+        services.AddScoped<CollaborateursServices>();
         services.AddScoped<AgenceService>();
         services.AddScoped<BusinessUnitService>();
         services.AddScoped<FonctionService>();
diff --git a/Collaborateur_Epa_Back/espacecollab.backend.api/Startup.cs b/Collaborateur_Epa_Back/espacecollab.backend.api/Startup.cs
index 1231a37..e7ee256 100644
--- a/Collaborateur_Epa_Back/espacecollab.backend.api/Startup.cs
+++ b/Collaborateur_Epa_Back/espacecollab.backend.api/Startup.cs
@@ -1,4 +1,5 @@
 using espacecollab.backend.infrastructure.sql.Options;
+using System.Text.Json.Serialization;
 
 namespace espacecollab.backend.api
 {
@@ -17,7 +18,10 @@ namespace espacecollab.backend.api
             services.Configure<SqlOption>(sqlSection);
             SqlOption sqlOptions = sqlSection.Get<SqlOption>();
 
-            services.AddControllers();
+            services.AddControllers().AddJsonOptions(opt =>
+            {
+                opt.JsonSerializerOptions.Converters.Add(new JsonStringEnumConverter());
+            }); ;
             services.AddRouting(options => options.LowercaseUrls = true);
 
             services.AddEndpointsApiExplorer();
@@ -33,7 +37,9 @@ namespace espacecollab.backend.api
             {
                 app.UseDeveloperExceptionPage();
             }
-
+            app.UseCors(
+                options => options.WithOrigins("http://localhost:4200").AllowAnyMethod().AllowAnyHeader()
+            );
             app.UseSwagger();
             app.UseSwaggerUI();
 
diff --git a/Collaborateur_Epa_Back/espacecollab.backend.api/appsettings.json b/Collaborateur_Epa_Back/espacecollab.backend.api/appsettings.json
index eb754e8..bc26e00 100644
--- a/Collaborateur_Epa_Back/espacecollab.backend.api/appsettings.json
+++ b/Collaborateur_Epa_Back/espacecollab.backend.api/appsettings.json
@@ -7,7 +7,7 @@
   },
   "AllowedHosts": "*",
   "Sql": {
-    "LoadFake": true,
-    "ConnectionString": "server=127.0.0.1;uid=root;pwd=root;database=collaborateur_epa"
+    "LoadFake": false,
+    "ConnectionString": "server=localhost;user=root;password=root;database=collaborateur_epa"    
   }
 }
diff --git a/Collaborateur_Epa_Back/espacecollab.backend.api/espacecollab.backend.api.csproj b/Collaborateur_Epa_Back/espacecollab.backend.api/espacecollab.backend.api.csproj
index eacb4b7..0c9099a 100644
--- a/Collaborateur_Epa_Back/espacecollab.backend.api/espacecollab.backend.api.csproj
+++ b/Collaborateur_Epa_Back/espacecollab.backend.api/espacecollab.backend.api.csproj
@@ -1,4 +1,4 @@
-<Project Sdk="Microsoft.NET.Sdk.Web">
+<Project Sdk="Microsoft.NET.Sdk.Web">
 
   <PropertyGroup>
     <TargetFramework>net6.0</TargetFramework>
@@ -7,6 +7,7 @@
   </PropertyGroup>
 
   <ItemGroup>
+    <PackageReference Include="Microsoft.AspNetCore.Cors" Version="2.2.0" />
     <PackageReference Include="Swashbuckle.AspNetCore" Version="6.2.3" />
   </ItemGroup>
 
diff --git a/Collaborateur_Epa_Back/espacecollab.backend.appservices.dtos/CollaborateurApiDto.cs b/Collaborateur_Epa_Back/espacecollab.backend.appservices.dtos/CollaborateurApiDto.cs
index 13717bc..edcbc22 100644
--- a/Collaborateur_Epa_Back/espacecollab.backend.appservices.dtos/CollaborateurApiDto.cs
+++ b/Collaborateur_Epa_Back/espacecollab.backend.appservices.dtos/CollaborateurApiDto.cs
@@ -3,8 +3,8 @@ using espacecollab.backend.appservices.dtos.Values;
 
 namespace espacecollab.backend.appservices.dtos
 {
-    public record CollaborateurApiDto(uint Id, string Name, string FirstName, DateTime BirthDate, EnumGenreApi Gender, EnumStatutApi Status, int ChildrenNumber, string Address, 
-                                      string Telephone, string PersonalMail, string ApsideMail, DateTime ResignationDate, int ReferrerId, int BusinessUnitId) : IGenericIdApiDto
+    public record CollaborateurApiDto(uint Id, string Name, string FirstName, string BirthDate, EnumGenreApi Gender, EnumStatutApi Status, int ChildrenNumber, string Address, 
+                                      string Telephone, string PersonalMail, string ApsideMail, string ResignationDate, int ReferrerId, int BusinessUnitId) : IGenericIdApiDto
     {
         public uint Id { get; set; } = Id;
     }
diff --git a/Collaborateur_Epa_Back/espacecollab.backend.appservices.dtos/Mappers/CollaborateurApiDtoMapper.cs b/Collaborateur_Epa_Back/espacecollab.backend.appservices.dtos/Mappers/CollaborateurApiDtoMapper.cs
index b604f55..11ab39e 100644
--- a/Collaborateur_Epa_Back/espacecollab.backend.appservices.dtos/Mappers/CollaborateurApiDtoMapper.cs
+++ b/Collaborateur_Epa_Back/espacecollab.backend.appservices.dtos/Mappers/CollaborateurApiDtoMapper.cs
@@ -1,4 +1,5 @@
 using espacecollab.backend.infrastructure.sql.dtos;
+using System.Globalization;
 
 namespace espacecollab.backend.appservices.dtos.Mappers
 {
@@ -7,17 +8,17 @@ namespace espacecollab.backend.appservices.dtos.Mappers
         public static CollaborateurApiDto ToApi(this CollaborateurSqlDto collaborateurSql)
         {
             return new CollaborateurApiDto((uint)collaborateurSql.Id, collaborateurSql.Name, collaborateurSql.FirstName,
-                collaborateurSql.BirthDate, collaborateurSql.Gender.ToEnumGenreApi(), collaborateurSql.Status.ToEnumStatutApi(), collaborateurSql.ChildrenNumber,
+                collaborateurSql.BirthDate.ToShortDateString(), collaborateurSql.Gender.ToEnumGenreApi(), collaborateurSql.Status.ToEnumStatutApi(), collaborateurSql.ChildrenNumber,
                 collaborateurSql.Address, collaborateurSql.Telephone, collaborateurSql.PersonalMail, collaborateurSql.ApsideMail,
-                collaborateurSql.ResignationDate, collaborateurSql.ReferrerId, collaborateurSql.BusinessUnitId);
+                collaborateurSql.ResignationDate.ToShortDateString(), collaborateurSql.ReferrerId, collaborateurSql.BusinessUnitId);
         }
 
         public static CollaborateurSqlDto ToSql(this CollaborateurApiDto collaborateurApi)
         {
             return new CollaborateurSqlDto((int)collaborateurApi.Id, collaborateurApi.Name, collaborateurApi.FirstName,
-                collaborateurApi.BirthDate, collaborateurApi.Gender.ToEnumGenreSql(), collaborateurApi.Status.ToEnumStatutSql(), collaborateurApi.ChildrenNumber,
+                DateTime.ParseExact(collaborateurApi.BirthDate,"dd/MM/yyyy",CultureInfo.InvariantCulture), collaborateurApi.Gender.ToEnumGenreSql(), collaborateurApi.Status.ToEnumStatutSql(), collaborateurApi.ChildrenNumber,
                 collaborateurApi.Address, collaborateurApi.Telephone, collaborateurApi.PersonalMail, collaborateurApi.ApsideMail,
-                collaborateurApi.ResignationDate, collaborateurApi.ReferrerId, collaborateurApi.BusinessUnitId);
+                DateTime.ParseExact(collaborateurApi.ResignationDate, "dd/MM/yyyy", CultureInfo.InvariantCulture), collaborateurApi.ReferrerId, collaborateurApi.BusinessUnitId);
         }
     }
 }
diff --git a/Collaborateur_Epa_Back/espacecollab.backend.infrastructure.sql.dtos/CollaborateurSqlDto.cs b/Collaborateur_Epa_Back/espacecollab.backend.infrastructure.sql.dtos/CollaborateurSqlDto.cs
index 113f08e..b01751e 100644
--- a/Collaborateur_Epa_Back/espacecollab.backend.infrastructure.sql.dtos/CollaborateurSqlDto.cs
+++ b/Collaborateur_Epa_Back/espacecollab.backend.infrastructure.sql.dtos/CollaborateurSqlDto.cs
@@ -1,11 +1,13 @@
 using espacecollab.backend.infrastructure.sql.dtos.Values;
 using System.Diagnostics.CodeAnalysis;
 using espacecollab.backend.infrastructure.sql.dtos.Interfaces;
+using System.ComponentModel.DataAnnotations;
 
 namespace espacecollab.backend.infrastructure.sql.dtos;
 
 public class CollaborateurSqlDto : IGenericIdSqlDto
 {
+    [Key]
     public int Id { get; set; }
     public string Name { get; set; }
     public string FirstName { get; set; }
diff --git a/Collaborateur_Epa_Back/espacecollab.backend.infrastructure.sql/MainDbContext.cs b/Collaborateur_Epa_Back/espacecollab.backend.infrastructure.sql/MainDbContext.cs
index 8642097..247426c 100644
--- a/Collaborateur_Epa_Back/espacecollab.backend.infrastructure.sql/MainDbContext.cs
+++ b/Collaborateur_Epa_Back/espacecollab.backend.infrastructure.sql/MainDbContext.cs
@@ -1,11 +1,13 @@
-using espacecollab.backend.infrastructure.sql.Options;
+using espacecollab.backend.infrastructure.sql.dtos;
+using espacecollab.backend.infrastructure.sql.Options;
 using Microsoft.EntityFrameworkCore;
 using Microsoft.Extensions.Options;
 namespace espacecollab.backend.infrastructure.sql
 {
-    public class MainDbContext : DbContext
+    public class MainDbContext : DbContext 
     {
         private IOptions<SqlOption> SqlSettings { get; }
+        private DbSet<CollaborateurSqlDto>? Collaborateur { get; set; }
 
         public MainDbContext(IOptions<SqlOption> sqlSettings)
         {
@@ -14,10 +16,22 @@ namespace espacecollab.backend.infrastructure.sql
 
         protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
         {
-            optionsBuilder.UseSqlServer(SqlSettings.Value.ConnectionString, builder =>
-            {
-                builder.EnableRetryOnFailure(5, TimeSpan.FromSeconds(10), null);
-            });
+            optionsBuilder.UseMySql(SqlSettings.Value.ConnectionString, 
+                ServerVersion.AutoDetect(SqlSettings.Value.ConnectionString))
+                .EnableSensitiveDataLogging();
+        }
+
+        protected override void OnModelCreating(ModelBuilder modelBuilder)
+        {
+            modelBuilder.Entity<CollaborateurSqlDto>().Property(p=> p.Id).UseMySqlIdentityColumn();
+            modelBuilder
+                .Entity<CollaborateurSqlDto>()
+                .Property(e => e.Gender)
+                .HasConversion<string>();
+            modelBuilder
+               .Entity<CollaborateurSqlDto>()
+               .Property(e => e.Status)
+               .HasConversion<string>();
         }
     }
 }
diff --git a/Collaborateur_Epa_Back/espacecollab.backend.infrastructure.sql/Repository/GenericSqlRepository.cs b/Collaborateur_Epa_Back/espacecollab.backend.infrastructure.sql/Repository/GenericSqlRepository.cs
index f1986bf..77d9023 100644
--- a/Collaborateur_Epa_Back/espacecollab.backend.infrastructure.sql/Repository/GenericSqlRepository.cs
+++ b/Collaborateur_Epa_Back/espacecollab.backend.infrastructure.sql/Repository/GenericSqlRepository.cs
@@ -1,5 +1,6 @@
 using espacecollab.backend.infrastructure.interfaces;
 using espacecollab.backend.infrastructure.sql.dtos.Interfaces;
+using Microsoft.EntityFrameworkCore;
 
 namespace espacecollab.backend.infrastructure.sql.Repository
 {
@@ -14,7 +15,10 @@ namespace espacecollab.backend.infrastructure.sql.Repository
 
         public virtual T? Add(T entity)
         {
-            return Context.Set<T>().Add(entity) as T;
+            Context.Set<T>().Add(entity);  
+            Context.SaveChanges();
+            return entity;
+
         }
 
         public virtual bool Delete(int entityId)
@@ -40,7 +44,6 @@ namespace espacecollab.backend.infrastructure.sql.Repository
         {
             Context.Set<T>().Update(entity);
             Context.SaveChanges();
-
             return Context.Set<T>().FirstOrDefault(e => e.Id == entity.Id);
         }
     }
diff --git a/Collaborateur_Epa_Back/espacecollab.backend.infrastructure.sql/db/db_1_0_0.sql b/Collaborateur_Epa_Back/espacecollab.backend.infrastructure.sql/db/db_1_0_0.sql
index aa2f461..9ca60e7 100644
--- a/Collaborateur_Epa_Back/espacecollab.backend.infrastructure.sql/db/db_1_0_0.sql
+++ b/Collaborateur_Epa_Back/espacecollab.backend.infrastructure.sql/db/db_1_0_0.sql
@@ -59,15 +59,17 @@ CREATE TABLE IF NOT EXISTS Collaborateur(
     Name varchar(100) NOT NULL,
     FirstName varchar(100) NOT NULL,
     BirthDate date NOT NULL,
-    Gender ENUM('MASCULIN','FEMININ','AUTRE') NOT NULL,
-    Status ENUM('CADRE','NONCADRE','ALTERNANT','STAGIAIRE') NOT NULL,
+    Gender ENUM('masculin','feminin','autre') NOT NULL DEFAULT 'masculin',
+    Status ENUM('cadre','noncadre','alternant','stagiaire') NOT NULL DEFAULT 'noncadre',
     ChildrenNumber smallint NOT NULL,
     Address varchar(200) NOT NULL,
     Telephone varchar(15) NOT NULL,
     PersonalMail varchar(100) NOT NULL,
     ApsideMail varchar(100) NOT NULL,
-    ResignationDate date NOT NULL,
-    ReferrerId int NOT NULL,
+    ResignationDate date,
+    BusinessUnitId int NOT NUll,
+    ReferrerId int,
+    CONSTRAINT FK_COLLABORATEUR_BUSINESSUNIT FOREIGN KEY (BusinessUnitId) REFERENCES BusinessUnit(Id),
     CONSTRAINT FK_COLLABORATEUR_PARRAIN FOREIGN KEY (ReferrerId) REFERENCES Collaborateur(Id),
     PRIMARY KEY (Id)
 );
@@ -151,3 +153,9 @@ CREATE TABLE IF NOT EXISTS CollaborateurCollaboreProjet(
     CONSTRAINT FK_COLLABORATEUR_COLLABORE_PROJET FOREIGN KEY (CollaborateurId) REFERENCES Collaborateur(Id),
     CONSTRAINT FK_PROJET_COLLABORE_COLLABORATEUR FOREIGN KEY (ProjetId) REFERENCES Projet(Id)
 );
+
+INSERT INTO Agence(Id, Name) VALUES (1,'Agence1');
+INSERT INTO BusinessUnit(Id, Name, AgenceId) VALUES (1,'BusinessUnit1',1);
+INSERT INTO Collaborateur(Id, Name, FirstName, BirthDate, Gender, Status, ChildrenNumber, Address, Telephone, PersonalMail,
+                          ApsideMail, ResignationDate, BusinessUnitId, ReferrerId)
+VALUES (1,'Collab1','Collab1','2000-30-08','masculin','cadre',0,'adresse','tel','pmail','amail',NULL,1,NULL);
\ No newline at end of file
diff --git a/Collaborateur_Epa_Back/espacecollab.backend.infrastructure.sql/espacecollab.backend.infrastructure.sql.csproj b/Collaborateur_Epa_Back/espacecollab.backend.infrastructure.sql/espacecollab.backend.infrastructure.sql.csproj
index 66c4cb9..d2b3a93 100644
--- a/Collaborateur_Epa_Back/espacecollab.backend.infrastructure.sql/espacecollab.backend.infrastructure.sql.csproj
+++ b/Collaborateur_Epa_Back/espacecollab.backend.infrastructure.sql/espacecollab.backend.infrastructure.sql.csproj
@@ -7,13 +7,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.EntityFrameworkCore" Version="6.0.0" />
-    <PackageReference Include="Microsoft.EntityFrameworkCore.SqlServer" Version="6.0.0" />
-    <PackageReference Include="Microsoft.EntityFrameworkCore.Tools" Version="6.0.0">
-      <PrivateAssets>all</PrivateAssets>
-      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
-    </PackageReference>
-    <PackageReference Include="MySql.EntityFrameworkCore" Version="5.0.8" />
+    <PackageReference Include="Pomelo.EntityFrameworkCore.MySql" Version="6.0.0" />
   </ItemGroup>
 
   <ItemGroup>