folkehelseinstituttet / Fhi.ReverseProxyMiddleware

Handles reverse proxy middleware

Fhi.ReverseProxyMiddleware

Handles reverse proxy if you just need to route api-calls through without doing anything more about them

Setup example

Create a new asp.net web minimal api project

dotnet new web -o TodoApi

Add a httpClient in program.cs

builder.Services.AddHttpClient("httpClientName", c =>
{
    c.BaseAddress = new Uri("https://urlToApi");
});

Add this package

dotnet add package fhi.reverseproxymiddleware

Add configuration in appsettings.json. TargetPath will be what you want to reverse proxy; ie if your site is hosted on https://localhost, with the configuration below, all calls to https://localhost/api will be forwarded to the using the httpClient with the specified name. AllowedHttpMethods are the methods you want to reverse proxy, by default all are included

"ReverseProxyOptions": {
    "HttpClientName": "httpClientName",
    "TargetPath": "api",
    "AllowedHttpMethods": "get;post;put",
    "IncludeTargetPath": "true"
  } 

Add options and middleware into program.cs

var reverseProxyOptions = builder.Configuration.GetSection("ReverseProxyOptions").Get<ReverseProxyOptions>()!;
...
app.UseMiddleware<ReverseProxyMiddleware>(Options.Create(reverseProxyOptions));