diff --git a/backend/services/PostService/src/PostService.Api/PostService.Api.csproj b/backend/services/PostService/src/PostService.Api/PostService.Api.csproj
index a88018b..dc3568c 100644
--- a/backend/services/PostService/src/PostService.Api/PostService.Api.csproj
+++ b/backend/services/PostService/src/PostService.Api/PostService.Api.csproj
@@ -9,6 +9,10 @@
     <ItemGroup>
         <PackageReference Include="HotChocolate.AspNetCore" Version="14.0.0" />
         <PackageReference Include="Microsoft.AspNetCore.OpenApi" Version="8.0.6"/>
+        <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="8.0.0">
+          <PrivateAssets>all</PrivateAssets>
+          <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+        </PackageReference>
         <PackageReference Include="Swashbuckle.AspNetCore" Version="6.4.0"/>
     </ItemGroup>
 
diff --git a/backend/services/PostService/src/PostService.Api/Program.cs b/backend/services/PostService/src/PostService.Api/Program.cs
index 3934f5f..fbb6754 100644
--- a/backend/services/PostService/src/PostService.Api/Program.cs
+++ b/backend/services/PostService/src/PostService.Api/Program.cs
@@ -1,3 +1,4 @@
+using Microsoft.EntityFrameworkCore;
 using PostService.Api.GraphQL.Mutation;
 using PostService.Api.GraphQL.Query;
 using PostService.Application;
@@ -7,7 +8,7 @@
 var builder = WebApplication.CreateBuilder(args);
  
 builder.Services
-    .AddPersistenceServices()
+    .AddPersistenceServices(builder.Configuration)
     .AddInfrastructureServices()
     .AddApplicationServices();
 
@@ -18,6 +19,12 @@
 
 var app = builder.Build();
 
+using (var scope = app.Services.CreateScope())
+{
+    var dbContext = scope.ServiceProvider.GetRequiredService<PostDbContext>();
+    dbContext.Database.Migrate();
+}
+
 app.UseHttpsRedirection();
 
 app.MapGraphQL();
diff --git a/backend/services/PostService/src/PostService.Api/appsettings.Development.json b/backend/services/PostService/src/PostService.Api/appsettings.Development.json
index 0c208ae..1b138cf 100644
--- a/backend/services/PostService/src/PostService.Api/appsettings.Development.json
+++ b/backend/services/PostService/src/PostService.Api/appsettings.Development.json
@@ -4,5 +4,8 @@
       "Default": "Information",
       "Microsoft.AspNetCore": "Warning"
     }
+  },
+  "ConnectionStrings": {
+    "DefaultConnection": "Host=localhost;Port=5432;Username=postgres;Password=mysecretpasswordfordevelopment;Database=postgres"
   }
 }
diff --git a/backend/services/PostService/src/PostService.Persistence/DependencyInjection.cs b/backend/services/PostService/src/PostService.Persistence/DependencyInjection.cs
index 294ef06..e420826 100644
--- a/backend/services/PostService/src/PostService.Persistence/DependencyInjection.cs
+++ b/backend/services/PostService/src/PostService.Persistence/DependencyInjection.cs
@@ -1,11 +1,16 @@
+using Microsoft.EntityFrameworkCore;
+using Microsoft.Extensions.Configuration;
 using Microsoft.Extensions.DependencyInjection;
 
 namespace PostService.Persistence;
 
 public static class DependencyInjection
 {
-    public static IServiceCollection AddPersistenceServices(this IServiceCollection services)
+    public static IServiceCollection AddPersistenceServices(this IServiceCollection services, IConfiguration configuration)
     {
+        services.AddDbContext<PostDbContext>(options =>
+            options.UseNpgsql(configuration.GetConnectionString("DefaultConnection")));
+        
         return services;
     }
 }
\ No newline at end of file
diff --git a/backend/services/PostService/src/PostService.Persistence/Migrations/20241024191844_InitialMigration.Designer.cs b/backend/services/PostService/src/PostService.Persistence/Migrations/20241024191844_InitialMigration.Designer.cs
new file mode 100644
index 0000000..69b042a
--- /dev/null
+++ b/backend/services/PostService/src/PostService.Persistence/Migrations/20241024191844_InitialMigration.Designer.cs
@@ -0,0 +1,139 @@
+// <auto-generated />
+using System;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+using PostService.Persistence;
+
+#nullable disable
+
+namespace PostService.Persistence.Migrations
+{
+    [DbContext(typeof(PostDbContext))]
+    [Migration("20241024191844_InitialMigration")]
+    partial class InitialMigration
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "8.0.0")
+                .HasAnnotation("Relational:MaxIdentifierLength", 63);
+
+            NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
+
+            modelBuilder.Entity("PostService.Domain.Entities.Comment", b =>
+                {
+                    b.Property<Guid>("CommentId")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<string>("Content")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<DateTime>("CreatedAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<Guid>("PostId")
+                        .HasColumnType("uuid");
+
+                    b.Property<Guid>("UserId")
+                        .HasColumnType("uuid");
+
+                    b.HasKey("CommentId");
+
+                    b.ToTable("Comments");
+                });
+
+            modelBuilder.Entity("PostService.Domain.Entities.Like", b =>
+                {
+                    b.Property<Guid>("LikeId")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<DateTime>("CreatedAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<Guid>("PostId")
+                        .HasColumnType("uuid");
+
+                    b.Property<Guid>("UserId")
+                        .HasColumnType("uuid");
+
+                    b.HasKey("LikeId");
+
+                    b.ToTable("Likes");
+                });
+
+            modelBuilder.Entity("PostService.Domain.Entities.Post", b =>
+                {
+                    b.Property<Guid>("PostId")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<int>("CommentCount")
+                        .HasColumnType("integer");
+
+                    b.Property<string>("Content")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<DateTime>("CreatedAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("ImageUrl")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<int>("LikeCount")
+                        .HasColumnType("integer");
+
+                    b.Property<string>("Title")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<Guid>("UserId")
+                        .HasColumnType("uuid");
+
+                    b.HasKey("PostId");
+
+                    b.ToTable("Posts");
+                });
+
+            modelBuilder.Entity("PostService.Domain.Entities.User", b =>
+                {
+                    b.Property<Guid>("UserId")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<DateTime>("CreatedAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("FirstName")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<string>("ImageUrl")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<string>("LastName")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<string>("Username")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("UserId");
+
+                    b.ToTable("Users");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}
diff --git a/backend/services/PostService/src/PostService.Persistence/Migrations/20241024191844_InitialMigration.cs b/backend/services/PostService/src/PostService.Persistence/Migrations/20241024191844_InitialMigration.cs
new file mode 100644
index 0000000..bf49536
--- /dev/null
+++ b/backend/services/PostService/src/PostService.Persistence/Migrations/20241024191844_InitialMigration.cs
@@ -0,0 +1,94 @@
+using System;
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace PostService.Persistence.Migrations
+{
+    /// <inheritdoc />
+    public partial class InitialMigration : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.CreateTable(
+                name: "Comments",
+                columns: table => new
+                {
+                    CommentId = table.Column<Guid>(type: "uuid", nullable: false),
+                    PostId = table.Column<Guid>(type: "uuid", nullable: false),
+                    UserId = table.Column<Guid>(type: "uuid", nullable: false),
+                    Content = table.Column<string>(type: "text", nullable: false),
+                    CreatedAt = table.Column<DateTime>(type: "timestamp with time zone", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Comments", x => x.CommentId);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "Likes",
+                columns: table => new
+                {
+                    LikeId = table.Column<Guid>(type: "uuid", nullable: false),
+                    PostId = table.Column<Guid>(type: "uuid", nullable: false),
+                    UserId = table.Column<Guid>(type: "uuid", nullable: false),
+                    CreatedAt = table.Column<DateTime>(type: "timestamp with time zone", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Likes", x => x.LikeId);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "Posts",
+                columns: table => new
+                {
+                    PostId = table.Column<Guid>(type: "uuid", nullable: false),
+                    UserId = table.Column<Guid>(type: "uuid", nullable: false),
+                    Title = table.Column<string>(type: "text", nullable: false),
+                    Content = table.Column<string>(type: "text", nullable: false),
+                    ImageUrl = table.Column<string>(type: "text", nullable: false),
+                    LikeCount = table.Column<int>(type: "integer", nullable: false),
+                    CommentCount = table.Column<int>(type: "integer", nullable: false),
+                    CreatedAt = table.Column<DateTime>(type: "timestamp with time zone", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Posts", x => x.PostId);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "Users",
+                columns: table => new
+                {
+                    UserId = table.Column<Guid>(type: "uuid", nullable: false),
+                    FirstName = table.Column<string>(type: "text", nullable: false),
+                    LastName = table.Column<string>(type: "text", nullable: false),
+                    Username = table.Column<string>(type: "text", nullable: false),
+                    ImageUrl = table.Column<string>(type: "text", nullable: false),
+                    CreatedAt = table.Column<DateTime>(type: "timestamp with time zone", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Users", x => x.UserId);
+                });
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropTable(
+                name: "Comments");
+
+            migrationBuilder.DropTable(
+                name: "Likes");
+
+            migrationBuilder.DropTable(
+                name: "Posts");
+
+            migrationBuilder.DropTable(
+                name: "Users");
+        }
+    }
+}
diff --git a/backend/services/PostService/src/PostService.Persistence/Migrations/PostDbContextModelSnapshot.cs b/backend/services/PostService/src/PostService.Persistence/Migrations/PostDbContextModelSnapshot.cs
new file mode 100644
index 0000000..e74743d
--- /dev/null
+++ b/backend/services/PostService/src/PostService.Persistence/Migrations/PostDbContextModelSnapshot.cs
@@ -0,0 +1,136 @@
+// <auto-generated />
+using System;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+using PostService.Persistence;
+
+#nullable disable
+
+namespace PostService.Persistence.Migrations
+{
+    [DbContext(typeof(PostDbContext))]
+    partial class PostDbContextModelSnapshot : ModelSnapshot
+    {
+        protected override void BuildModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "8.0.0")
+                .HasAnnotation("Relational:MaxIdentifierLength", 63);
+
+            NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
+
+            modelBuilder.Entity("PostService.Domain.Entities.Comment", b =>
+                {
+                    b.Property<Guid>("CommentId")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<string>("Content")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<DateTime>("CreatedAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<Guid>("PostId")
+                        .HasColumnType("uuid");
+
+                    b.Property<Guid>("UserId")
+                        .HasColumnType("uuid");
+
+                    b.HasKey("CommentId");
+
+                    b.ToTable("Comments");
+                });
+
+            modelBuilder.Entity("PostService.Domain.Entities.Like", b =>
+                {
+                    b.Property<Guid>("LikeId")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<DateTime>("CreatedAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<Guid>("PostId")
+                        .HasColumnType("uuid");
+
+                    b.Property<Guid>("UserId")
+                        .HasColumnType("uuid");
+
+                    b.HasKey("LikeId");
+
+                    b.ToTable("Likes");
+                });
+
+            modelBuilder.Entity("PostService.Domain.Entities.Post", b =>
+                {
+                    b.Property<Guid>("PostId")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<int>("CommentCount")
+                        .HasColumnType("integer");
+
+                    b.Property<string>("Content")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<DateTime>("CreatedAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("ImageUrl")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<int>("LikeCount")
+                        .HasColumnType("integer");
+
+                    b.Property<string>("Title")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<Guid>("UserId")
+                        .HasColumnType("uuid");
+
+                    b.HasKey("PostId");
+
+                    b.ToTable("Posts");
+                });
+
+            modelBuilder.Entity("PostService.Domain.Entities.User", b =>
+                {
+                    b.Property<Guid>("UserId")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<DateTime>("CreatedAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("FirstName")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<string>("ImageUrl")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<string>("LastName")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<string>("Username")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("UserId");
+
+                    b.ToTable("Users");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}
diff --git a/backend/services/PostService/src/PostService.Persistence/PostDbContext.cs b/backend/services/PostService/src/PostService.Persistence/PostDbContext.cs
new file mode 100644
index 0000000..254e7da
--- /dev/null
+++ b/backend/services/PostService/src/PostService.Persistence/PostDbContext.cs
@@ -0,0 +1,16 @@
+using Microsoft.EntityFrameworkCore;
+using PostService.Domain.Entities;
+
+namespace PostService.Persistence;
+
+public class PostDbContext : DbContext
+{
+    public PostDbContext(DbContextOptions<PostDbContext> options) : base(options)
+    {
+    }
+
+    public DbSet<User> Users { get; set; }
+    public DbSet<Post> Posts { get; set; }
+    public DbSet<Comment> Comments { get; set; }
+    public DbSet<Like> Likes { get; set; }
+}
\ No newline at end of file
diff --git a/backend/services/PostService/src/PostService.Persistence/PostService.Persistence.csproj b/backend/services/PostService/src/PostService.Persistence/PostService.Persistence.csproj
index cd696e1..33cdc51 100644
--- a/backend/services/PostService/src/PostService.Persistence/PostService.Persistence.csproj
+++ b/backend/services/PostService/src/PostService.Persistence/PostService.Persistence.csproj
@@ -7,7 +7,14 @@
     </PropertyGroup>
 
     <ItemGroup>
+      <PackageReference Include="Microsoft.EntityFrameworkCore" Version="8.0.0" />
+      <PackageReference Include="Microsoft.Extensions.Configuration" Version="8.0.0" />
       <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="8.0.0" />
+      <PackageReference Include="Npgsql.EntityFrameworkCore.PostgreSQL" Version="8.0.0" />
+    </ItemGroup>
+
+    <ItemGroup>
+      <ProjectReference Include="..\PostService.Domain\PostService.Domain.csproj" />
     </ItemGroup>
 
 </Project>