Interface HttpResponse

Immediately force closes the connection. Any onAborted callback will run.

Corking a response is a performance improvement in both CPU and network, as you ready the IO system for writing multiple chunks at once. By default, you're corked in the immediately executing top portion of the route handler. In all other cases, such as when returning from await, or when being called back from an async database request or anything that isn't directly executing in the route handler, you'll want to cork before calling writeStatus, writeHeader or just write. Corking takes a callback in which you execute the writeHeader, writeStatus and such calls, in one atomic IO operation. This is important, not only for TCP but definitely for TLS where each write would otherwise result in one TLS block being sent off, each with one send syscall.

Example usage:

res.cork(() => {
  res.writeStatus("200 OK").writeHeader("Some", "Value").write("Hello world!");
});
Copy

Ends this response by copying the contents of body.

Ends this response without a body.

Returns the remote IP address in binary format (4 or 16 bytes), as reported by the PROXY Protocol v2 compatible proxy.

Returns the remote IP address as text, as reported by the PROXY Protocol v2 compatible proxy.

Returns the remote IP address in binary format (4 or 16 bytes).

Returns the remote IP address as text.

Returns the global byte write offset for this response. Use with onWritable.

Every HttpResponse MUST have an attached abort handler IF you do not respond to it immediately inside of the callback. Returning from an Http request handler without attaching (by calling onAborted) an abort handler is ill-use and will terminate. When this event emits, the response has been aborted and may not be used.

Handler for reading data from POST and such requests. You MUST copy the data of chunk if isLast is not true. We Neuter ArrayBuffers on return, making it zero length.

Registers a handler for writable events. Continue failed write attempts in here. You MUST return true for success, false for failure. Writing nothing is always success, so by default you must return true.

Pause http body streaming (throttle)

Resume http body streaming (unthrottle)

Ends this response, or tries to, by streaming appropriately sized chunks of body. Use in conjunction with onWritable. Returns tuple [ok, hasResponded].

Upgrades a HttpResponse to a WebSocket. See UpgradeAsync, UpgradeSync example files.

Enters or continues chunked encoding mode. Writes part of the response. End with zero length write. Returns true if no backpressure was added.

Writes key and value to HTTP response. See writeStatus and corking.