public async Task AllowUserDefinedUpstreamTransformer()
{
// Arrange
const string version = "v1";
const string key = "projects";
HttpContext httpContext = GetHttpContext(requestPath: $"/{version}/{key}");
var next = new TestRequestDelegate();
// What is being tested
var swaggerForOcelotOptions = new SwaggerForOcelotUIOptions()
{
ReConfigureUpstreamSwaggerJson = ExampleUserDefinedUpstreamTransformer
};
TestSwaggerEndpointOptions testSwaggerEndpointOptions = CreateSwaggerEndpointOptions(key, version);
var rerouteOptions = new TestReRouteOptions();
// downstreamSwagger is returned when client.GetStringAsync is called by the middleware.
string downstreamSwagger = await GetBaseOpenApi("OpenApiBase");
HttpClient httClientMock = GetHttpClient(downstreamSwagger);
var httpClientFactory = new TestHttpClientFactory(httClientMock);
// upstreamSwagger is returned after swaggerJsonTransformer transforms the downstreamSwagger
string upstreamSwagger = await GetBaseOpenApi("OpenApiBaseTransformed");
var swaggerJsonTransformer = new TestSwaggerJsonTransformer(upstreamSwagger);
var swaggerForOcelotMiddleware = new SwaggerForOcelotMiddleware(
next.Invoke,
swaggerForOcelotOptions,
rerouteOptions,
testSwaggerEndpointOptions,
httpClientFactory,
swaggerJsonTransformer);
// Act
await swaggerForOcelotMiddleware.Invoke(httpContext, DummySwaggerServiceDiscoveryProvider.Default);
httpContext.Response.Body.Seek(0, SeekOrigin.Begin);
string transformedUpstreamSwagger = await new StreamReader(httpContext.Response.Body).ReadToEndAsync();
// Assert
AreEqual(transformedUpstreamSwagger, upstreamSwagger);
}
public async Task AllowVersionPlaceholder()
{
// Arrange
const string version = "v1";
const string key = "projects";
HttpContext httpContext = GetHttpContext(requestPath: $"/{version}/{key}");
var next = new TestRequestDelegate();
// What is being tested
var swaggerForOcelotOptions = new SwaggerForOcelotUIOptions();
TestSwaggerEndpointOptions swaggerEndpointOptions = CreateSwaggerEndpointOptions(key, version);
var rerouteOptions = new TestReRouteOptions(new List <ReRouteOptions>
{
new ReRouteOptions
{
SwaggerKey = "projects",
UpstreamPathTemplate = "/api/{version}/projects/Values/{everything}",
DownstreamPathTemplate = "/api/{version}/Values/{everything}",
},
new ReRouteOptions
{
SwaggerKey = "projects",
UpstreamPathTemplate = "/api/projects/Projects",
DownstreamPathTemplate = "/api/Projects",
},
new ReRouteOptions
{
SwaggerKey = "projects",
UpstreamPathTemplate = "/api/projects/Projects/{everything}",
DownstreamPathTemplate = "/api/Projects/{everything}",
}
});
// downstreamSwagger is returned when client.GetStringAsync is called by the middleware.
string downstreamSwagger = await GetBaseOpenApi("OpenApiWithVersionPlaceholderBase");
HttpClient httClientMock = GetHttpClient(downstreamSwagger);
var httpClientFactory = new TestHttpClientFactory(httClientMock);
// upstreamSwagger is returned after swaggerJsonTransformer transforms the downstreamSwagger
string expectedSwagger = await GetBaseOpenApi("OpenApiWithVersionPlaceholderBaseTransformed");
var swaggerJsonTransformerMock = new Mock <ISwaggerJsonTransformer>();
swaggerJsonTransformerMock
.Setup(x => x.Transform(
It.IsAny <string>(),
It.IsAny <IEnumerable <ReRouteOptions> >(),
It.IsAny <string>()))
.Returns((
string swaggerJson,
IEnumerable <ReRouteOptions> reRouteOptions,
string serverOverride) => new SwaggerJsonTransformer()
.Transform(swaggerJson, reRouteOptions, serverOverride));
var swaggerForOcelotMiddleware = new SwaggerForOcelotMiddleware(
next.Invoke,
swaggerForOcelotOptions,
rerouteOptions,
swaggerEndpointOptions,
httpClientFactory,
swaggerJsonTransformerMock.Object);
// Act
await swaggerForOcelotMiddleware.Invoke(httpContext, DummySwaggerServiceDiscoveryProvider.Default);
httpContext.Response.Body.Seek(0, SeekOrigin.Begin);
// Assert
using (var streamReader = new StreamReader(httpContext.Response.Body))
{
string transformedUpstreamSwagger = await streamReader.ReadToEndAsync();
AreEqual(transformedUpstreamSwagger, expectedSwagger);
}
swaggerJsonTransformerMock.Verify(x => x.Transform(
It.IsAny <string>(),
It.IsAny <IEnumerable <ReRouteOptions> >(),
It.IsAny <string>()), Times.Once);
}
public async Task AllowUserDefinedUpstreamTransformer()
{
// Arrange
const string version = "v1";
const string key = "test";
var httpContext = GetHttpContext(requestPath: $"/{version}/{key}");
var next = new TestRequestDelegate();
// What is being tested
var swaggerForOcelotOptions = new SwaggerForOcelotUIOptions()
{
ReConfigureUpstreamSwaggerJson = ExampleUserDefinedUpstreamTransformer
};
var rerouteOptions = new TestReRouteOptions();
var swaggerEndpointOptions = new TestSwaggerEndpointOptions(
new List <SwaggerEndPointOptions>()
{
new SwaggerEndPointOptions()
{
Key = key,
Config = new List <SwaggerEndPointConfig>()
{
new SwaggerEndPointConfig()
{
Name = "Test Service",
Version = version,
Url = $"http://test.com/{version}/{key}/swagger.json"
}
}
}
});
// downstreamSwagger is returned when client.GetStringAsync is called by the middleware.
var downstreamSwagger = await GetBaseOpenApi("OpenApiBase");
var httClientMock = GetHttpClient(downstreamSwagger);
var httpClientFactory = new TestHttpClientFactory(httClientMock);
// upstreamSwagger is returned after swaggerJsonTransformer transforms the downstreamSwagger
var upstreamSwagger = await GetBaseOpenApi("OpenApiBaseTransformed");
var swaggerJsonTransformer = new TestSwaggerJsonTransformer(upstreamSwagger);
var swaggerForOcelotMiddleware = new SwaggerForOcelotMiddleware(
next.Invoke,
swaggerForOcelotOptions,
rerouteOptions,
swaggerEndpointOptions,
httpClientFactory,
swaggerJsonTransformer);
// Act
await swaggerForOcelotMiddleware.Invoke(httpContext);
httpContext.Response.Body.Seek(0, SeekOrigin.Begin);
var transformedUpstreamSwagger = await new StreamReader(httpContext.Response.Body).ReadToEndAsync();
// Assert
await AreEqual(transformedUpstreamSwagger, "OpenApiBaseTransformedReconfigured");
}