Connection Pool

Reuse connections across requests to improve latency and throughput.

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, .{
        .pool_max_connections = 32,
        .pool_max_per_host = 8,
    });
    defer client.deinit();

    inline for (0..5) |_| {
        var res = try client.get("https://httpbin.org/get", .{});
        defer res.deinit();
        std.debug.print("status={d}, len={?d}\n", .{ res.status.code, res.contentLength() });
    }
}

Run

zig build run-connection_pool

What to Verify

• Repeated calls succeed with stable performance.
• Pool limits are respected for host and global connections.