UserService.cs

using Microsoft.Extensions.Options;
using MongoDB.Driver;
using UserDataAPI.Models;

namespace UserDataAPI.Services;

public class MongoDbSettings
{
    public string? ConnectionString { get; set; }
    public string? DatabaseName { get; set; }
    public string? UsersCollectionName { get; set; }
}

public class UserService
{
    private readonly IMongoCollection<User> _usersCollection;

    public UserService(IOptions<MongoDbSettings> settings)
    {
        var client = new MongoClient(settings.Value.ConnectionString);
        var database = client.GetDatabase(settings.Value.DatabaseName);
        _usersCollection = database.GetCollection<User>(settings.Value.UsersCollectionName);
    }

    public async Task<List<User>> GetAsync() =>
        await _usersCollection.Find(_ => true).ToListAsync();

    public async Task<User?> GetAsync(string id) =>
        await _usersCollection.Find(u => u.Id == id).FirstOrDefaultAsync();

    public async Task CreateAsync(User newUser) =>
        await _usersCollection.InsertOneAsync(newUser);

    public async Task<bool> UpdateAsync(string id, User updatedUser)
    {
        updatedUser.Id = id;
        var result = await _usersCollection.ReplaceOneAsync(u => u.Id == id, updatedUser);
        return result.IsAcknowledged && result.ModifiedCount > 0;
    }

    public async Task<bool> RemoveAsync(string id)
    {
        var result = await _usersCollection.DeleteOneAsync(u => u.Id == id);
        return result.IsAcknowledged && result.DeletedCount > 0;
    }
}