If set to true, adds Netty's io.netty.handler.flush.FlushConsolidationHandler as the first handler in the channel pipeline. It batches back-to-back flush() calls (for example, from pipelined responses) into a single transport write, which can improve throughput under concurrent load at the cost of slightly delaying individual flushes.

enableH2c

var enableH2c: Boolean

If set to true and enableHttp2 is set to true, enables HTTP/2 protocol without TLS (h2c) for unencrypted connectors. SSL connectors are unaffected and continue to negotiate HTTP/2 via ALPN when enableHttp2 is true, so this flag can be combined with an SSL connector to serve both HTTP/2 over TLS and h2c from the same server.

enableHttp2

var enableHttp2: Boolean

If set to true, enables HTTP/2 protocol for Netty engine

httpServerCodec

var httpServerCodec: () -> HttpServerCodec

User-provided function to configure Netty's HttpServerCodec

maxChunkSize

var maxChunkSize: Int

The maximum length of the content or each chunk

maxHeaderSize

var maxHeaderSize: Int

The maximum length of all headers. If the sum of the length of each header exceeds this value, a TooLongFrameException will be raised.

maxInitialLineLength

var maxInitialLineLength: Int

The url limit including query parameters

parallelism

val parallelism: Int

requestReadTimeoutSeconds

var requestReadTimeoutSeconds: Int

Timeout in seconds for reading requests from client, "0" is infinite.

responseWriteTimeoutSeconds

var responseWriteTimeoutSeconds: Int

Timeout in seconds for sending responses to client

runningLimit

var runningLimit: Int

Number of concurrently running requests from the same http pipeline

shareWorkGroup

var shareWorkGroup: Boolean

All tasks use a common event group, and call dispatchers wrap this event group without thread pinning. This setting reduces some overhead in scheduling at the expense of the safety provided by segregating the work and call groups.

shutdownGracePeriod

var shutdownGracePeriod: Long

shutdownTimeout

var shutdownTimeout: Long

tcpKeepAlive

var tcpKeepAlive: Boolean

If set to true, enables TCP keep alive for connections so all dead client connections will be discarded. The timeout period is configured by the system so configure your host accordingly.

workerGroupSize

var workerGroupSize: Int

Functions

enableHttp3

@ExperimentalKtorApi

fun enableHttp3(configure: NettyHttp3Configuration.() -> Unit = {})

Enables the HTTP/3 protocol (over QUIC/UDP) for the Netty engine.

takeFrom

fun takeFrom(other: ApplicationEngine.Configuration)