Helidon Core27.0.0

io.helidon.webserver.http2.Http2Config

Description

HTTP/2 server configuration

Configuration options

Key	Type	Default	Description
`validate-response-headers`	`Boolean`	`true`	Whether to validate response headers
`log`	`HttpLogConfig`		HTTP Log configuration
`max-frame-size`	`Integer`	`16384`	The size of the largest frame payload that the sender is willing to receive in bytes
`flow-control-timeout`	`Duration`	`PT15S`	Outbound flow control blocking timeout configured as `java.time.Duration` or text in ISO-8601 format
`send-error-details`	`Boolean`	`false`	Whether to send error message over HTTP to client
`initial-window-size`	`Integer`	`1048576`	This setting indicates the sender's maximum window size in bytes for stream-level flow control
`validate-path`	`Boolean`	`true`	Whether to validate path characters and the HTTP/2 `:path` pseudo-header
`max-headers-size`	`Integer`	`16384`	Configure the maximum allowed headers size, which must be greater than `0`
`max-empty-frames`	`Integer`	`10`	Maximum number of consecutive empty frames allowed on connection
`max-buffered-entity-size`	`Size`	`64 KB`	Configure the maximum size allowed for an entity that can be explicitly buffered by the application by calling `io.helidon.http.media.ReadableEntity.buffer()`
`max-rapid-resets`	`Integer`	`50`	Maximum number of rapid client resets within the check period and server-side resets over the connection lifetime before GOAWAY is sent, or `-1` to disable both reset-count checks; fixed internal bounds still apply to frames received after the server has locally reset a stream
`max-concurrent-streams`	`Long`	`8192`	Maximum number of concurrent streams that the server will allow
`rapid-reset-check-period`	`Duration`	`PT10S`	Period for counting rapid resets(stream RST sent by client before any data have been sent by server)
`validate-request-headers`	`Boolean`	`true`	Whether to validate request headers
`requested-uri-discovery`	`RequestedUriDiscoveryContext`		Requested URI discovery settings
`max-header-list-size`	`Long`	`8192`	The maximum field section size the server advertises to clients using the HTTP/2 `SETTINGS_MAX_HEADER_LIST_SIZE` setting
`alt-svc`	`AltSvcConfig`		Explicit `Alt-Svc` advertisement for responses handled by HTTP routing, excluding HTTP/2 subprotocol responses such as gRPC

Usages

See the manifest for all available types.

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