@appport/transport-http

The HTTP transport.

import { createHttpTransport } from "@appport/transport-http";

const transport = createHttpTransport({ url: "/appport", sessionId });

One endpoint carries every capability:

• requests — POST /appport with one envelope in, one envelope out.
• streams — the same POST, answered as application/x-ndjson: one envelope per line, stream.start through stream.end. Cancelling aborts the request.
• events — GET /appport/events as Server-Sent Events, each frame carrying one AppPort event envelope.

So a plain HTTP deployment reaches conformance level 3 without a second protocol.

Transport status and application status stay separate: the client reads the envelope, not the status code. Chunk sequence numbers are checked, and an out-of-order chunk fails the stream with STREAM_ERROR.