SPMS.API/Controllers/ServiceController.cs

@@ -33,6 +33,23 @@ public class ServiceController : ControllerBase
         return Ok(ApiResponse<ServiceNameCheckResponseDto>.Success(result));
     }
 
+    [HttpPost("register")]
+    [SwaggerOperation(
+        Summary = "서비스 통합 등록",
+        Description = "서비스 생성과 플랫폼 자격증명 등록을 단일 호출로 완료합니다. FCM/APNs 자격증명은 선택사항이며, 제공 시 검증 실패하면 전체 롤백됩니다.")]
+    [SwaggerResponse(200, "등록 성공", typeof(ApiResponse<RegisterServiceResponseDto>))]
+    [SwaggerResponse(400, "잘못된 요청")]
+    [SwaggerResponse(409, "서비스명 중복")]
+    public async Task<IActionResult> RegisterAsync([FromBody] RegisterServiceRequestDto request)
+    {
+        var adminIdClaim = User.FindFirst("adminId")?.Value;
+        if (string.IsNullOrEmpty(adminIdClaim) || !long.TryParse(adminIdClaim, out var adminId))
+            throw SpmsException.Unauthorized("인증 정보가 유효하지 않습니다.");
+
+        var result = await _serviceManagementService.RegisterAsync(request, adminId);
+        return Ok(ApiResponse<RegisterServiceResponseDto>.Success(result));
+    }
+
     [HttpPost("create")]
     [SwaggerOperation(
         Summary = "서비스 등록",

SPMS.Application/DTOs/Service/RegisterServiceRequestDto.cs

@@ -0,0 +1,46 @@
+using System.ComponentModel.DataAnnotations;
+
+namespace SPMS.Application.DTOs.Service;
+
+public class RegisterServiceRequestDto
+{
+    [Required(ErrorMessage = "서비스명은 필수입니다.")]
+    [StringLength(100, MinimumLength = 2, ErrorMessage = "서비스명은 2~100자여야 합니다.")]
+    public string ServiceName { get; set; } = string.Empty;
+
+    [StringLength(500, ErrorMessage = "설명은 500자 이내여야 합니다.")]
+    public string? Description { get; set; }
+
+    /// <summary>
+    /// FCM 자격증명 (선택)
+    /// </summary>
+    public FcmCredentialDto? Fcm { get; set; }
+
+    /// <summary>
+    /// APNs 자격증명 (선택)
+    /// </summary>
+    public ApnsCredentialDto? Apns { get; set; }
+}
+
+public class FcmCredentialDto
+{
+    [Required(ErrorMessage = "Service Account JSON은 필수입니다.")]
+    public string ServiceAccountJson { get; set; } = string.Empty;
+}
+
+public class ApnsCredentialDto
+{
+    [Required(ErrorMessage = "Bundle ID는 필수입니다.")]
+    public string BundleId { get; set; } = string.Empty;
+
+    [Required(ErrorMessage = "Key ID는 필수입니다.")]
+    [StringLength(10, MinimumLength = 10, ErrorMessage = "Key ID는 10자리여야 합니다.")]
+    public string KeyId { get; set; } = string.Empty;
+
+    [Required(ErrorMessage = "Team ID는 필수입니다.")]
+    [StringLength(10, MinimumLength = 10, ErrorMessage = "Team ID는 10자리여야 합니다.")]
+    public string TeamId { get; set; } = string.Empty;
+
+    [Required(ErrorMessage = "Private Key는 필수입니다.")]
+    public string PrivateKey { get; set; } = string.Empty;
+}

SPMS.Application/DTOs/Service/RegisterServiceResponseDto.cs

@@ -0,0 +1,23 @@
+namespace SPMS.Application.DTOs.Service;
+
+public class RegisterServiceResponseDto
+{
+    public string ServiceCode { get; set; } = string.Empty;
+    public string ServiceName { get; set; } = string.Empty;
+    public string ApiKey { get; set; } = string.Empty;
+    public DateTime ApiKeyCreatedAt { get; set; }
+    public string Status { get; set; } = string.Empty;
+    public DateTime CreatedAt { get; set; }
+    public PlatformResultDto Platforms { get; set; } = new();
+}
+
+public class PlatformResultDto
+{
+    public PlatformStatusDto? Android { get; set; }
+    public PlatformStatusDto? Ios { get; set; }
+}
+
+public class PlatformStatusDto
+{
+    public bool Registered { get; set; }
+}

SPMS.Application/Interfaces/IServiceManagementService.cs

@@ -6,6 +6,7 @@ public interface IServiceManagementService
 {
     Task<ServiceNameCheckResponseDto> CheckServiceNameAsync(ServiceNameCheckRequestDto request);
     Task<CreateServiceResponseDto> CreateAsync(CreateServiceRequestDto request, long adminId);
+    Task<RegisterServiceResponseDto> RegisterAsync(RegisterServiceRequestDto request, long adminId);
     Task<ServiceResponseDto> UpdateAsync(UpdateServiceRequestDto request);
     Task<ServiceListResponseDto> GetListAsync(ServiceListRequestDto request);
     Task<ServiceResponseDto> GetByServiceCodeAsync(string serviceCode);

SPMS.Application/Services/ServiceManagementService.cs

@@ -347,14 +347,7 @@ public class ServiceManagementService : IServiceManagementService
                 404);
         }
 
-        // Validate .p8 private key format
-        if (!request.PrivateKey.Contains("BEGIN PRIVATE KEY") || !request.PrivateKey.Contains("END PRIVATE KEY"))
-        {
-            throw new SpmsException(
-                ErrorCodes.InvalidCredentials,
-                "유효하지 않은 APNs Private Key 형식입니다. .p8 파일 내용을 입력해주세요.",
-                400);
-        }
+        ValidateApnsCredentials(request.PrivateKey);
 
         // Encrypt and store
         service.ApnsBundleId = request.BundleId;
@@ -378,10 +371,111 @@ public class ServiceManagementService : IServiceManagementService
                 404);
         }
 
-        // Validate JSON format and required fields
+        ValidateFcmCredentials(request.ServiceAccountJson);
+
+        // Encrypt and store
+        service.FcmCredentials = _credentialEncryptionService.Encrypt(request.ServiceAccountJson);
+        service.UpdatedAt = DateTime.UtcNow;
+
+        _serviceRepository.Update(service);
+        await _unitOfWork.SaveChangesAsync();
+    }
+
+    public async Task<RegisterServiceResponseDto> RegisterAsync(RegisterServiceRequestDto request, long adminId)
+    {
+        // 1. 서비스명 중복 검사
+        var nameExists = await _serviceRepository.ServiceNameExistsAsync(request.ServiceName);
+        if (nameExists)
+        {
+            throw new SpmsException(
+                ErrorCodes.ServiceNameDuplicate,
+                "이미 존재하는 서비스명입니다.",
+                409);
+        }
+
+        // 2. 자격증명 검증 (트랜잭션 전 빠른 실패)
+        if (request.Fcm != null)
+            ValidateFcmCredentials(request.Fcm.ServiceAccountJson);
+
+        if (request.Apns != null)
+            ValidateApnsCredentials(request.Apns.PrivateKey);
+
+        // 3. 트랜잭션 시작
+        using var transaction = await _unitOfWork.BeginTransactionAsync();
         try
         {
-            var jsonDoc = JsonDocument.Parse(request.ServiceAccountJson);
+            // 4. 서비스 생성
+            var serviceCode = await GenerateUniqueServiceCodeAsync();
+
+            var randomBytes = new byte[36];
+            using (var rng = RandomNumberGenerator.Create())
+            {
+                rng.GetBytes(randomBytes);
+            }
+            var apiKey = Convert.ToBase64String(randomBytes);
+
+            var now = DateTime.UtcNow;
+
+            var service = new Service
+            {
+                ServiceCode = serviceCode,
+                ServiceName = request.ServiceName,
+                Description = request.Description,
+                ApiKey = apiKey,
+                ApiKeyCreatedAt = now,
+                SubTier = SubTier.Free,
+                Status = ServiceStatus.Active,
+                CreatedAt = now,
+                CreatedBy = adminId,
+                IsDeleted = false
+            };
+
+            // 5. 자격증명 저장 (검증 통과한 것만)
+            if (request.Fcm != null)
+            {
+                service.FcmCredentials = _credentialEncryptionService.Encrypt(request.Fcm.ServiceAccountJson);
+            }
+
+            if (request.Apns != null)
+            {
+                service.ApnsBundleId = request.Apns.BundleId;
+                service.ApnsKeyId = request.Apns.KeyId;
+                service.ApnsTeamId = request.Apns.TeamId;
+                service.ApnsPrivateKey = _credentialEncryptionService.Encrypt(request.Apns.PrivateKey);
+            }
+
+            await _serviceRepository.AddAsync(service);
+            await _unitOfWork.SaveChangesAsync();
+            await _unitOfWork.CommitTransactionAsync();
+
+            // 6. 응답 반환
+            return new RegisterServiceResponseDto
+            {
+                ServiceCode = service.ServiceCode,
+                ServiceName = service.ServiceName,
+                ApiKey = apiKey,
+                ApiKeyCreatedAt = service.ApiKeyCreatedAt,
+                Status = service.Status.ToString(),
+                CreatedAt = service.CreatedAt,
+                Platforms = new PlatformResultDto
+                {
+                    Android = request.Fcm != null ? new PlatformStatusDto { Registered = true } : null,
+                    Ios = request.Apns != null ? new PlatformStatusDto { Registered = true } : null
+                }
+            };
+        }
+        catch
+        {
+            await _unitOfWork.RollbackTransactionAsync();
+            throw;
+        }
+    }
+
+    private static void ValidateFcmCredentials(string serviceAccountJson)
+    {
+        try
+        {
+            var jsonDoc = JsonDocument.Parse(serviceAccountJson);
             var root = jsonDoc.RootElement;
 
             if (!root.TryGetProperty("project_id", out _) ||
@@ -401,13 +495,17 @@ public class ServiceManagementService : IServiceManagementService
                 "유효하지 않은 JSON 형식입니다.",
                 400);
         }
+    }
 
-        // Encrypt and store
-        service.FcmCredentials = _credentialEncryptionService.Encrypt(request.ServiceAccountJson);
-        service.UpdatedAt = DateTime.UtcNow;
-
-        _serviceRepository.Update(service);
-        await _unitOfWork.SaveChangesAsync();
+    private static void ValidateApnsCredentials(string privateKey)
+    {
+        if (!privateKey.Contains("BEGIN PRIVATE KEY") || !privateKey.Contains("END PRIVATE KEY"))
+        {
+            throw new SpmsException(
+                ErrorCodes.InvalidCredentials,
+                "유효하지 않은 APNs Private Key 형식입니다. .p8 파일 내용을 입력해주세요.",
+                400);
+        }
     }
 
     public async Task<CredentialsResponseDto> GetCredentialsAsync(string serviceCode)