diff --git a/Persistence/DependencyInjection.cs b/Persistence/DependencyInjection.cs
new file mode 100644
index 0000000..9ec71f1
--- /dev/null
+++ b/Persistence/DependencyInjection.cs
@@ -0,0 +1,64 @@
+using Microsoft.EntityFrameworkCore;
+using Microsoft.Extensions.Configuration;
+using Microsoft.Extensions.DependencyInjection;
+using Mirea.Api.DataAccess.Application.Interfaces.DbContexts.Schedule;
+using Mirea.Api.DataAccess.Persistence.Contexts.Schedule;
+using Mirea.Api.DataAccess.Persistence.Properties;
+using System;
+using System.Collections.Generic;
+
+namespace Mirea.Api.DataAccess.Persistence;
+
+public static class DependencyInjection
+{
+    public static IServiceCollection AddPersistence(this IServiceCollection services, IConfiguration configuration)
+    {
+        var settings = configuration.GetSection(nameof(DbSettings)).Get<DbSettings>();
+        var connection = settings?.ConnectionStringSql;
+
+        Dictionary<DatabaseEnum, Action<DbContextOptionsBuilder>> dbConfigurations = new()
+        {
+            {
+                DatabaseEnum.Mysql,
+                options => options.UseMySql(connection, ServerVersion.AutoDetect(connection))
+            },
+            {
+                DatabaseEnum.Sqlite,
+                options => options.UseSqlite(connection)
+            },
+            {
+                DatabaseEnum.PostgresSql,
+                options => options.UseNpgsql(connection)
+            }
+        };
+
+        if (dbConfigurations.TryGetValue((DatabaseEnum)settings?.TypeDatabase!, out var dbConfig))
+        {
+            services.AddDbContext<CampusDbContext>(dbConfig);
+            services.AddDbContext<DisciplineDbContext>(dbConfig);
+            services.AddDbContext<FacultyDbContext>(dbConfig);
+            services.AddDbContext<GroupDbContext>(dbConfig);
+            services.AddDbContext<LectureHallDbContext>(dbConfig);
+            services.AddDbContext<LessonAssociationDbContext>(dbConfig);
+            services.AddDbContext<ProfessorDbContext>(dbConfig);
+            services.AddDbContext<LessonDbContext>(dbConfig);
+            services.AddDbContext<TypeOfOccupationDbContext>(dbConfig);
+
+            services.AddDbContext<UberDbContext>(dbConfig);
+        }
+        else
+            throw new NotSupportedException("Unsupported database type");
+
+        services.AddScoped<ICampusDbContext>(provider => provider.GetService<CampusDbContext>()!);
+        services.AddScoped<IDisciplineDbContext>(provider => provider.GetService<DisciplineDbContext>()!);
+        services.AddScoped<IFacultyDbContext>(provider => provider.GetService<FacultyDbContext>()!);
+        services.AddScoped<IGroupDbContext>(provider => provider.GetService<GroupDbContext>()!);
+        services.AddScoped<ILectureHallDbContext>(provider => provider.GetService<LectureHallDbContext>()!);
+        services.AddScoped<ILessonAssociationDbContext>(provider => provider.GetService<LessonAssociationDbContext>()!);
+        services.AddScoped<IProfessorDbContext>(provider => provider.GetService<ProfessorDbContext>()!);
+        services.AddScoped<ILessonDbContext>(provider => provider.GetService<LessonDbContext>()!);
+        services.AddScoped<ITypeOfOccupationDbContext>(provider => provider.GetService<TypeOfOccupationDbContext>()!);
+
+        return services;
+    }
+}
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