Error uploading a document to SQL Server in .Net Core 3.1 Web API - sql

Question

I have a SQL Server stored procedure that is used for uploading a document and returns an ID upon success.
I am storing the parameter file_data into a byte[] type in the Customer_Document_ADD class.
public byte[] file_data { get; set; }
The following is my repository code.
public async Task<int> InsertCustomer_Document_ADDResult(Customer_Document_ADD customer_Document_ADDED)
{
await using(SqlConnection connection = new SqlConnection(_connectionString))
{
connection.Open();
// define SqlParameters for the other two params to be passed
var company_idParam = new SqlParameter("#company_id", customer_Document_ADDED.company_id);
var customer_idParam = new SqlParameter("#customer_id", customer_Document_ADDED.customer_id);
var customer_site_idParam = new SqlParameter("#customer_site_id", customer_Document_ADDED.customer_site_id);
var customer_system_idParam = new SqlParameter("#customer_system_id", customer_Document_ADDED.customer_system_id);
var job_idParam = new SqlParameter("#job_id", customer_Document_ADDED.job_id);
var security_levelParam = new SqlParameter("#security_level", customer_Document_ADDED.security_level);
var file_nameParam = new SqlParameter("#file_name", customer_Document_ADDED.file_name);
var file_sizeParam = new SqlParameter("#file_size", customer_Document_ADDED.file_size);
var upload_dateParam = new SqlParameter("#upload_date", customer_Document_ADDED.upload_date);
var document_extParam = new SqlParameter("#document_ext", customer_Document_ADDED.document_ext);
var user_codeParam = new SqlParameter("#user_code", customer_Document_ADDED.user_code);
var user_descriptionParam = new SqlParameter("#user_description", customer_Document_ADDED.user_description);
var reference1Param = new SqlParameter("#reference1", customer_Document_ADDED.reference1);
var reference2Param = new SqlParameter("#reference2", customer_Document_ADDED.reference2);
var reference3Param = new SqlParameter("#reference3", customer_Document_ADDED.reference3);
var reference4Param = new SqlParameter("#reference4", customer_Document_ADDED.reference4);
var file_dataParam = new SqlParameter("#file_data", customer_Document_ADDED.file_data);
//if (file_dataParam.Value == null)
//{
// file_dataParam.Value = "";
//}
file_dataParam.SqlDbType = SqlDbType.Image;
// define the output parameter that needs to be retained
// for the Id created when the Stored Procedure executes
// the INSERT command
var document_idParam = new SqlParameter("#document_id", SqlDbType.Int);
// the direction defines what kind of parameter we're passing
// it can be one of:
// Input
// Output
// InputOutput -- which does pass a value to Stored Procedure and retains a new state
document_idParam.Direction = ParameterDirection.Output;
// we can also use context.Database.ExecuteSqlCommand() or awaitable ExecuteSqlCommandAsync()
// which also produces the same result - but the method is now marked obselete
// so we use ExecuteSqlRawAsync() instead
// we're using the awaitable version since GetOrCreateUserAsync() method is marked async
await context.Database.ExecuteSqlRawAsync(
"EXECUTE [dbo].[Customer_Document_ADD_incentive] #company_id, #customer_id, #customer_site_id, #customer_system_id, #job_id, #security_level, #file_name, #file_size, #upload_date, #document_ext, #user_code, #user_description, #reference1, #reference2, #reference3, #reference4, #file_data, #document_id out",
company_idParam,
customer_idParam,
customer_site_idParam,
customer_system_idParam,
job_idParam,
security_levelParam,
file_nameParam,
file_sizeParam,
upload_dateParam,
document_extParam,
user_codeParam,
user_descriptionParam,
reference1Param,
reference2Param,
reference3Param,
reference4Param,
file_dataParam,
document_idParam);
// the userIdParam which represents the Output param
// now holds the Id of the new user and is an Object type
// so we convert it to an Integer and send
return Convert.ToInt32(document_idParam.Value);
}
}
I'm getting the following error in Postman.
Microsoft.Data.SqlClient.SqlException (0x80131904): The parameterized query '(#company_id int,#customer_id int,#customer_site_id int,#custome' expects the parameter '#file_data', which was not supplied.
at Microsoft.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction)
at Microsoft.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction)
at Microsoft.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj, Boolean callerHasConnectionLock, Boolean asyncClose)
at Microsoft.Data.SqlClient.TdsParser.TryRun(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj, Boolean& dataReady)
at Microsoft.Data.SqlClient.SqlCommand.FinishExecuteReader(SqlDataReader ds, RunBehavior runBehavior, String resetOptionsString, Boolean isInternal, Boolean forDescribeParameterEncryption, Boolean shouldCacheForAlwaysEncrypted)
at Microsoft.Data.SqlClient.SqlCommand.CompleteAsyncExecuteReader(Boolean isInternal, Boolean forDescribeParameterEncryption)
at Microsoft.Data.SqlClient.SqlCommand.InternalEndExecuteNonQuery(IAsyncResult asyncResult, Boolean isInternal, String endMethod)
at Microsoft.Data.SqlClient.SqlCommand.EndExecuteNonQueryInternal(IAsyncResult asyncResult)
at Microsoft.Data.SqlClient.SqlCommand.EndExecuteNonQueryAsync(IAsyncResult asyncResult)
at System.Threading.Tasks.TaskFactory`1.FromAsyncCoreLogic(IAsyncResult iar, Func`2 endFunction, Action`1 endAction, Task`1 promise, Boolean requiresSynchronization)
--- End of stack trace from previous location where exception was thrown ---
at Microsoft.EntityFrameworkCore.Storage.RelationalCommand.ExecuteNonQueryAsync(RelationalCommandParameterObject parameterObject, CancellationToken cancellationToken)
at Microsoft.EntityFrameworkCore.Storage.RelationalCommand.ExecuteNonQueryAsync(RelationalCommandParameterObject parameterObject, CancellationToken cancellationToken)
at Microsoft.EntityFrameworkCore.Storage.RelationalCommand.ExecuteNonQueryAsync(RelationalCommandParameterObject parameterObject, CancellationToken cancellationToken)
at Microsoft.EntityFrameworkCore.RelationalDatabaseFacadeExtensions.ExecuteSqlRawAsync(DatabaseFacade databaseFacade, String sql, IEnumerable`1 parameters, CancellationToken cancellationToken)
at WebAPI.Repository.Customer_Document_ADDRepository.InsertCustomer_Document_ADDResult(Customer_Document_ADD customer_Document_ADDED) in C:\Users\CStith\source\code\project\WebAPI\WebAPI\Repository\Customer_Document_ADDRepository.cs:line 73
at WebAPI.Repository.Customer_Document_ADDRepository.InsertCustomer_Document_ADDResult(Customer_Document_ADD customer_Document_ADDED) in C:\Users\CStith\source\code\project\WebAPI\WebAPI\Repository\Customer_Document_ADDRepository.cs:line 97
at WebAPI.Controllers.Customer_Document_ADDController.InsertCustomer_Document_ADDResult(Customer_Document_ADD customer_Document_ADDED) in C:\Users\CStith\source\code\project\WebAPI\WebAPI\Controllers\Customer_Document_ADDController.cs:line 38
at Microsoft.AspNetCore.Mvc.Infrastructure.ActionMethodExecutor.TaskOfIActionResultExecutor.Execute(IActionResultTypeMapper mapper, ObjectMethodExecutor executor, Object controller, Object[] arguments)
at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.<InvokeActionMethodAsync>g__Awaited|12_0(ControllerActionInvoker invoker, ValueTask`1 actionResultValueTask)
at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.<InvokeNextActionFilterAsync>g__Awaited|10_0(ControllerActionInvoker invoker, Task lastTask, State next, Scope scope, Object state, Boolean isCompleted)
at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.Rethrow(ActionExecutedContextSealed context)
at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted)
at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.<InvokeInnerFilterAsync>g__Awaited|13_0(ControllerActionInvoker invoker, Task lastTask, State next, Scope scope, Object state, Boolean isCompleted)
at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeFilterPipelineAsync>g__Awaited|19_0(ResourceInvoker invoker, Task lastTask, State next, Scope scope, Object state, Boolean isCompleted)
at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeAsync>g__Awaited|17_0(ResourceInvoker invoker, Task task, IDisposable scope)
at Microsoft.AspNetCore.Routing.EndpointMiddleware.<Invoke>g__AwaitRequestTask|6_0(Endpoint endpoint, Task requestTask, ILogger logger)
at Microsoft.AspNetCore.Authorization.AuthorizationMiddleware.Invoke(HttpContext context)
at Microsoft.AspNetCore.Authentication.AuthenticationMiddleware.Invoke(HttpContext context)
at Microsoft.AspNetCore.Diagnostics.DeveloperExceptionPageMiddleware.Invoke(HttpContext context)
ClientConnectionId:e8f735f0-1ab5-4d53-9ead-01df3ee63c2e
Error Number:8178,State:1,Class:16
All other values are captured except the file. I am getting a null value in the debugger. Why am I unable to upload a file into the database? Thanks in advance.

Answer 1

Firstly,default model binding system cannot bind file to byte[] properties.If you want to bind file to btye[],you can use ByteArrayModelBinder,here is an official link.
Also,if you don't mind to change the type of file_data,you can use
public IFormFile file_data { get; set; }
and then you can convert it to byte[] type with MemoryStream.Here is an official link about upload files in .net core.