HTTP/3 Client Runtime Example

Run a full local end-to-end HTTP/3 request using the high-level client runtime (http3_enabled = true).

Demo Program

const std = @import("std");
const httpx = @import("httpx");

pub fn main() !void {
    var gpa = std.heap.GeneralPurposeAllocator(.{}){};
    defer _ = gpa.deinit();
    const allocator = gpa.allocator();

    var client = httpx.Client.initWithConfig(allocator, .{
        .http3_enabled = true,
    });
    defer client.deinit();

    // See examples/http3_client_runtime.zig for full local UDP server + client setup.
    var response = try client.get("http://127.0.0.1:8080/runtime", .{});
    defer response.deinit();

    std.debug.print("version={s} status={d}\n", .{ response.version.toString(), response.status.code });
}

Run

zig build run-http3_client_runtime

What to Verify

• The response version prints HTTP/3.
• The local UDP loopback server receives QUIC STREAM frames for control/request streams.
• The client decodes HTTP/3 HEADERS/DATA frames into a standard Response.