dependencies: [
    .package(url: "https://github.com/apple/swift-http-types.git", from: "0.1.0")
]

let request = HTTPRequest(method: .get, scheme: "https", authority: "www.example.com", path: "/")

var request = HTTPRequest(method: .get, url: URL(string: "https://www.example.com/")!)
request.method = .post
request.path = "/upload"

let response = HTTPResponse(status: .ok)

extension HTTPField.Name {
    static let myCustomHeader = Self("My-Custom-Header")!
}

// Set
request.headerFields[.userAgent] = "MyApp/1.0"
request.headerFields[.myCustomHeader] = "custom-value"
request.headerFields[raw: .acceptLanguage] = ["en-US", "zh-Hans-CN"]

// Get
request.headerFields[.userAgent] // "MyApp/1.0"
request.headerFields[.myCustomHeader] // "custom-value"
request.headerFields[.acceptLanguage] // "en-US, zh-Hans-CN"
request.headerFields[raw: .acceptLanguage] // ["en-US", "zh-Hans-CN"]

var request = HTTPRequest(method: .post, url: URL(string: "https://www.example.com/upload")!)
request.headerFields[.userAgent] = "MyApp/1.0"
let (responseBody, response) = try await URLSession.shared.upload(for: request, from: requestBody)
guard response.status == .created else {
    // Handle error
}

channel.configureHTTP2Pipeline(mode: .server) { channel in
    channel.pipeline.addHandlers([
        HTTP2FramePayloadToHTTPServerCodec(),
        ExampleChannelHandler()
    ])
}.map { _ in () }

final class ExampleChannelHandler: ChannelDuplexHandler {
    typealias InboundIn = HTTPTypeServerRequestPart
    typealias OutboundOut = HTTPTypeServerResponsePart

    func channelRead(context: ChannelHandlerContext, data: NIOAny) {
        switch unwrapInboundIn(data) {
        case .head(let request):
            // Handle request headers
        case .body(let body):
            // Handle request body
        case .end(let trailers):
            // Handle complete request
            let response = HTTPResponse(status: .ok)
            context.write(wrapOutboundOut(.head(response)), promise: nil)
            context.writeAndFlush(wrapOutboundOut(.end(nil)), promise: nil)
        }
    }
}