public PaymentModelValidationProvider()
{
// Initialise config values to validate model, defaults are assigned if not found
_minAmount = decimal.TryParse(PGConfiguration.TryGetValue("MinAmount"), out var minAmount) ? minAmount : 0;
_maxAmount = decimal.TryParse(PGConfiguration.TryGetValue("MaxAmount"), out var maxAmount) ? maxAmount : 10000;
_supportedCurrencies = PGConfiguration.TryGetValue("SupportedCurrencies")?
.Split(',', StringSplitOptions.RemoveEmptyEntries).Select(str => str.Trim()).ToHashSet() ?? new HashSet <string>()
{
"GBP", "EUR", "USD"
};
}
public void CreatePaymentAsync_Payment_Inserted_Returns_true()
{
// Arrange
var bankUrl = "someUrl";
var configRootMock = new Mock<IConfigurationSection>();
configRootMock.SetupGet(m => m.Key)
.Returns("ExternalBankUri");
configRootMock.SetupGet(m => m.Value)
.Returns(bankUrl);
var configurationSections = new IConfigurationSection[1]
{
configRootMock.Object,
};
PGConfiguration.SetKeyValues(configurationSections);
var dbContextMock = _mocks.Create<IDatabaseContext>();
dbContextMock.Setup(m => m.Insert(It.Is<PaymentDto>(p =>
p.Uid == "Fake" &&
p.State == Framework.Enums.PaymentState.Completed)))
.Returns(1);
var responseMessage = new HttpResponseMessage();
responseMessage.StatusCode = HttpStatusCode.OK;
responseMessage.Content = new FakeHttpContent("Fake");
var httpClientWrapperMock = _mocks.Create<IHttpClientWrapper>();
httpClientWrapperMock.Setup(m => m.PostAsync(bankUrl, It.IsAny<StringContent>()))
.Returns(Task.FromResult(responseMessage));
httpClientWrapperMock.Setup(m => m.Dispose());
var paymentBLL = new PaymentBLL(dbContextMock.Object, httpClientWrapperMock.Object);
// Act
var res = paymentBLL.CreatePaymentAsync(new PaymentDto()).Result;
// Assert
_mocks.Verify();
Assert.AreEqual(res, true);
}
public void SetKeyValues_Key_Values_Set()
{
var key1 = "Key1";
var value1 = "Value1";
var key2 = "Key2";
var value2 = "Value2";
var configRootMock = new Mock <IConfigurationSection>();
configRootMock.SetupGet(m => m.Key)
.Returns(key1);
configRootMock.SetupGet(m => m.Value)
.Returns(value1);
var configRootMock2 = new Mock <IConfigurationSection>();
configRootMock2.SetupGet(m => m.Key)
.Returns(key2);
configRootMock2.SetupGet(m => m.Value)
.Returns("Value2");
var configurationSections = new IConfigurationSection[2]
{
configRootMock.Object,
configRootMock2.Object
};
// Act
PGConfiguration.SetKeyValues(configurationSections);
var key1Result = PGConfiguration.TryGetValue(key1);
var key2Result = PGConfiguration.TryGetValue(key2);
var nonexistantKeyResult = PGConfiguration.TryGetValue("Random");
// Assert
configRootMock.Verify();
configRootMock2.Verify();
Assert.AreEqual(key1Result, value1);
Assert.AreEqual(key2Result, value2);
Assert.AreEqual(nonexistantKeyResult, null);
}
public void CreatePaymentAsync_Status_Code_Not_200_Returns_False()
{
// Arrange
var bankUrl = "someUrl";
var configRootMock = new Mock<IConfigurationSection>();
configRootMock.SetupGet(m => m.Key)
.Returns("ExternalBankUri");
configRootMock.SetupGet(m => m.Value)
.Returns(bankUrl);
var configurationSections = new IConfigurationSection[1]
{
configRootMock.Object,
};
PGConfiguration.SetKeyValues(configurationSections);
var responseMessage = new HttpResponseMessage();
responseMessage.StatusCode = HttpStatusCode.NotFound;
responseMessage.Content = new FakeHttpContent("Fake");
var httpClientWrapperMock = _mocks.Create<IHttpClientWrapper>();
httpClientWrapperMock.Setup(m => m.PostAsync(bankUrl, It.IsAny<StringContent>()))
.Returns(Task.FromResult(responseMessage));
httpClientWrapperMock.Setup(m => m.Dispose());
var paymentBLL = new PaymentBLL(null, httpClientWrapperMock.Object);
// Act
var res = paymentBLL.CreatePaymentAsync(new PaymentDto()).Result;
// Assert
_mocks.Verify();
Assert.AreEqual(res, false);
}
// This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
{
// Setup middleware to handle application exceptions
app.UseExceptionHandler(errorApp =>
{
errorApp.UseMiddleware <ExceptionHandlerMiddleware>();
});
// Enable middleware to serve generated Swagger as a JSON endpoint.
app.UseSwagger();
// Enable middleware to serve swagger-ui (HTML, JS, CSS, etc.),
// specifying the Swagger JSON endpoint.
app.UseSwaggerUI(c =>
{
c.SwaggerEndpoint("/swagger/v1/swagger.json", "PaymentGateway API");
});
// Small custom middlewares
app.Use(async(context, next) =>
{
// Read request body for improved logging
context.Request.EnableBuffering();
var requestReader = new StreamReader(context.Request?.Body);
Environment.SetEnvironmentVariable(Constants.PGRequestBody, await requestReader.ReadToEndAsync());
context.Request.Body.Position = 0;
// Return header to search through logs
context.Response.Headers.Add("TraceIdentifier", context.TraceIdentifier);
context.Response.OnStarting(() =>
{
// When exception thrown use ExceptionHandlerMiddleware
if (context.Response.StatusCode != 500)
{
var id = context.User.Identity;
Log.Information($"TraceIdentifier: {context.TraceIdentifier}\n"
+ $"Request URI: {context.Request?.Method} {context.Request?.GetEncodedUrl()}\n"
+ $"Request Body: {Environment.GetEnvironmentVariable(Constants.PGRequestBody)}\n"
+ $"Status Code: {context.Response.StatusCode}\n"
+ $"Request user: {id?.Name ?? "(anon)"}\n");
}
return(Task.CompletedTask);
});
await next.Invoke();
});
app.UseHttpsRedirection();
app.UseRouting();
// Authenticate first to see who the user is
app.UseAuthentication();
// Authorise then if access allowed
app.UseAuthorization();
app.UseEndpoints(endpoints =>
{
endpoints.MapControllers();
});
// Load defaults from appsettings.json
var appConfig = new ConfigurationBuilder()
.SetBasePath(AppContext.BaseDirectory)
.AddJsonFile("appsettings.json", optional: false)
.Build();
// Set environment config values
PGConfiguration.SetKeyValues(appConfig.GetChildren());
}
public PaymentBLL(IDatabaseContext db, IHttpClientWrapper httpClient)
{
_db = db;
_httpClient = httpClient;
_bankUri = PGConfiguration.TryGetValue("ExternalBankUri");
}
