hono/dist/helper/streaming/stream.js

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// src/helper/streaming/stream.ts
import { StreamingApi } from "../../utils/stream.js";
import { isOldBunVersion } from "./utils.js";
var contextStash = /* @__PURE__ */ new WeakMap();
var stream = (c, cb, onError) => {
  const { readable, writable } = new TransformStream();
  const stream2 = new StreamingApi(writable, readable);
  if (isOldBunVersion()) {
    c.req.raw.signal.addEventListener("abort", () => {
      if (!stream2.closed) {
        stream2.abort();
      }
    });
  }
  contextStash.set(stream2.responseReadable, c);
  (async () => {
    try {
      await cb(stream2);
    } catch (e) {
      if (e === void 0) {
      } else if (e instanceof Error && onError) {
        await onError(e, stream2);
      } else {
        console.error(e);
      }
    } finally {
      stream2.close();
    }
  })();
  return c.newResponse(stream2.responseReadable);
};
export {
  stream
};