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Cenk
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13k
The changes to the database were committed successfully, but
Jul 20 2019 6:17 AM
Hi,
I have a asp.net web API. I am using EF 6 code first approach. I am getting this error only when I load testing my web API with Jmeter. How can I fix this?
The changes to the database were committed successfully, but an error occurred
while
updating the
object
context. The ObjectContext might be
in
an inconsistent state. Inner exception message: Saving or accepting changes failed because more than one entity of type
'BusinessEntity.GameResponse'
have the same primary key value. Ensure that explicitly
set
primary key values are unique. Ensure that database-generated primary keys are configured correctly
in
the database and
in
the Entity Framework model. Use the Entity Designer
for
Database First/Model First configuration. Use the
'HasDatabaseGeneratedOption" fluent API or '
DatabaseGeneratedAttribute'
for
Code First configuration
Here is my GameResponse:
using
System;
namespace
BusinessEntity
{
public
class
GameResponse
{
public
int
Id {
get
;
set
; }
public
string
referenceId {
get
;
set
; }
public
string
productCode {
get
;
set
; }
public
int
quantity {
get
;
set
; }
public
string
version {
get
;
set
; }
public
string
signature {
get
;
set
; }
public
string
ApplicationCode {
get
;
set
; }
public
string
validatedToken {
get
;
set
; }
public
DateTime? responseDateTime {
get
;
set
; } = DateTime.Now;
public
string
initiationResultCode {
get
;
set
; }
public
string
companyToken {
get
;
set
; }
public
string
estimateUnitPrice {
get
;
set
; }
public
string
currency {
get
;
set
; }
}
}
Here is the method I am load testing:
private
async Task<HttpResponseMessage> CallRazerService(RequestDto requestDto)
{
HttpResponseMessage response =
null
;
using
(var scope =
new
TransactionScope(TransactionScopeAsyncFlowOption.Enabled))
{
try
{
//Transform DTO into GameRequest for calling Razer Initiate
var config =
new
MapperConfiguration(cfg =>
{
cfg.CreateMap<RequestDto, GameRequest>();
cfg.CreateMap<GameRequest, GameConfirmRequest>();
cfg.CreateMap<GameConfirmResponse, GameConfirmResponseDto>();
cfg.CreateMap<Coupon, CouponDto>();
});
var iMapper = config.CreateMapper();
var gameRequest = iMapper.Map<RequestDto, GameRequest>(requestDto);
//Unique reference ID
gameRequest.referenceId = Guid.NewGuid().ToString();
//Create signature
gameRequest = Utilities.CreateSignature(gameRequest, RequestType.Initiate);
//Add initiation request into database
_unitOfWork.GameRepository.Insert(gameRequest);
#region Call Razer initiate/confirm
//Call Razer for initiation
response = await Utilities.CallRazer(gameRequest,
"purchaseinitiation"
);
//Read response
var htmlResponse = await response.Content.ReadAsStringAsync();
var gameResponse = JsonConvert.DeserializeObject<GameResponse>(htmlResponse);
//Adding initiation response into database
_unitOfWork.GameResponseRepository.Insert(gameResponse);
if
(gameResponse.initiationResultCode ==
"00"
)
{
gameRequest.validatedToken = gameResponse.validatedToken;
//Create signature
var gameConfirmRequest = Utilities.CreateSignature(gameRequest, RequestType.Confirm);
//Transform DTO into GameRequest for calling Razer Initiate
var gameConfirmRequests = iMapper.Map<GameRequest, GameConfirmRequest>(gameConfirmRequest);
//Add confirm request into database
_unitOfWork.GameConfirmRequestRepository.Insert(gameConfirmRequests);
//Call Razer for confirm
response = await Utilities.CallRazer(gameRequest,
"purchaseconfirmation"
);
//Read response
htmlResponse = await response.Content.ReadAsStringAsync();
var gameConfirmResponse = JsonConvert.DeserializeObject<GameConfirmResponse>(htmlResponse);
//Add confirm response into database
_unitOfWork.GameConfirmResponseRepository.Insert(gameConfirmResponse);
}
}
catch
(Exception e)
{
throw
e;
}
#endregion
await _unitOfWork.SaveAsync();
scope.Complete();
}
return
response;
}
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Answers (
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