3.83Custom HttpRequestBuilder Extension Methods

Created on Aug 17, 2026~1 min read

In addition to the built-in HttpRequestBuilder methods, you can simplify code and reduce duplicate logic through custom extension methods. For example, add a SetAccept method to quickly set the Accept field in the HTTP request header:

cs
public static class HttpRequestBuilderExtensions{    public static HttpRequestBuilder SetAccept(this HttpRequestBuilder httpRequestBuilder, string accept)    {        // Parameter validation: ensure accept is not empty        ArgumentException.ThrowIfNullOrWhiteSpace(accept);        return httpRequestBuilder.WithHeader("Accept", accept, replace: true);    }}

Once defined, you can chain-call this method on HttpRequestBuilder instances:

cs
HttpRequestBuilder.Get("https://furion.net")    .SetAccept("text/html");

With the power of C# extension methods, you can easily extend the functionality of HttpRequestBuilder, improving code readability and maintainability while effectively reducing duplicate code.