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using Joonasw.AzureAdApiSample.Api.Extensions;
using Microsoft.AspNetCore.Http;
using Microsoft.EntityFrameworkCore;
namespace Joonasw.AzureAdApiSample.Api.Data
public class TodoContextFactory : ITodoContextFactory
private readonly IHttpContextAccessor _httpContextAccessor;
public TodoContextFactory(IHttpContextAccessor httpContextAccessor)
_httpContextAccessor = httpContextAccessor;
public TodoContext CreateContext()
string userId = null;
// We assume the call is app-only for the case where this is executed by EF tooling
// There will not be an HttpContext then, and certainly no user
if (!(_httpContextAccessor.HttpContext?.User?.IsAppOnlyCall() ?? true))
//If the call is delegated, grab the user id so we can filter data with it
userId = _httpContextAccessor.HttpContext.User.GetId();
//TODO: In a multi-tenant app, grab the tenant id from the caller (delegated or app-only), and give it to the context as well
//TODO: Inject IConfiguration in constructor and get DB connection string from there, use actual DB, add migrations
var options = new DbContextOptionsBuilder<TodoContext>()
return new TodoContext(options, userId);