| public Invoke ( HttpContext context ) : System.Threading.Tasks.Task | ||
| context | HttpContext | |
| return | System.Threading.Tasks.Task | |
/// <summary>
/// The invoke method is called by the ProxyExtension class.
/// </summary>
/// <param name="context"></param>
/// <returns></returns>
public async Task Invoke(HttpContext context)
{
try
{
string requestPath = context.Request.Path.Value;
int indexOfApi = requestPath.IndexOf(_apiPathKey);
context.Request.Path = requestPath.Remove(0, indexOfApi);
// Set security headers
context.Response.Headers[HeaderNames.CacheControl] = "no-cache";
context.Response.Headers[HeaderNames.CacheControl] = "no-cache, no-store, must-revalidate, private";
context.Response.Headers[HeaderNames.Pragma] = "no-cache";
context.Response.Headers["X-Frame-Options"] = "SAMEORIGIN";
context.Response.Headers["X-XSS-Protection"] = "1; mode=block";
context.Response.Headers["X-Content-Type-Options"] = "nosniff";
await _proxy.Invoke(context);
}
catch (Exception e)
{
_logger.LogError(new EventId(-1, "ApiProxyMiddleware Exception"), e, $"An unexpected exception occured while forwarding a request to the API proxy; {_apiUri}.");
context.Response.StatusCode = (int)System.Net.HttpStatusCode.NotFound;
context.Response.ContentType = "application/json";
await context.Response.WriteAsync($"Exception encountered forwarding a request to {_apiUri}.");
}
}
// This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
public void Configure(IApplicationBuilder app, IHostingEnvironment env, ILoggerFactory loggerFactory)
{
app.UseStaticFiles();
// For any requests coming in from '/dist/**/*' or '__webpack_hmr', we wan't to proxy those requests
// to our webpack dev server that is running.
// Make sure you have 'gulp dev' running before starting the .NET web stuff.
// NOTE: You may want to configure this to only run on a dev environment, and not production.
var proxyOptions = new OptionsWrapper<ProxyOptions>(new ProxyOptions
{
Host = "localhost",
Port = "5001"
});
app.Use(async (context, next) =>
{
if(!context.Request.Path.StartsWithSegments("/dist")
&& !context.Request.Path.StartsWithSegments("/__webpack_hmr"))
{
await next();
return;
}
var proxyMiddleware = new ProxyMiddleware(httpContext => next.Invoke(), proxyOptions);
await proxyMiddleware.Invoke(context);
});
app.UseJsEngine(); // this needs to be before MVC
app.UseMvc(routes =>
{
routes.MapRoute(
name: "default",
template: "{controller=Home}/{action=Index}/{id?}");
});
}
/// <summary>
/// The invoke method is called by the ProxyExtension class.
/// </summary>
/// <param name="context"></param>
/// <returns></returns>
public async Task Invoke(HttpContext context)
{
string requestPath = context.Request.Path.Value;
int indexOfApi = requestPath.IndexOf(_apiPathKey);
context.Request.Path = requestPath.Remove(0, indexOfApi);
await _proxy.Invoke(context);
}
