fix(ext/node): send data frame with end_stream flag on _final call

ext/node/ops/http2.rs

@@ -344,15 +344,15 @@ pub async fn op_http2_client_send_data(
   state: Rc<RefCell<OpState>>,
   #[smi] stream_rid: ResourceId,
   #[buffer] data: JsBuffer,
+  end_of_stream: bool,
 ) -> Result<(), AnyError> {
   let resource = state
     .borrow()
     .resource_table
     .get::<Http2ClientStream>(stream_rid)?;
   let mut stream = RcRef::map(&resource, |r| &r.stream).borrow_mut().await;
 
-  // TODO(bartlomieju): handle end of stream
-  stream.send_data(data.to_vec().into(), false)?;
+  stream.send_data(data.to_vec().into(), end_of_stream)?;
   Ok(())
 }
 

ext/node/polyfills/http2.ts

@@ -977,7 +977,7 @@ export class ClientHttp2Stream extends Duplex {
       return;
     }
 
-    shutdownWritable(this, cb);
+    shutdownWritable(this, cb, this.#rid);
   }
 
   // TODO(bartlomieju): needs a proper cleanup
@@ -1175,15 +1175,30 @@ export class ClientHttp2Stream extends Duplex {
   }
 }
 
-function shutdownWritable(stream, callback) {
+function shutdownWritable(stream, callback, streamRid) {
   debugHttp2(">>> shutdownWritable", callback);
   const state = stream[kState];
   if (state.shutdownWritableCalled) {
+    debugHttp2(">>> shutdownWritable() already called");
     return callback();
   }
   state.shutdownWritableCalled = true;
-  onStreamTrailers(stream);
-  callback();
+  if (state.flags & STREAM_FLAGS_HAS_TRAILERS) {
+    onStreamTrailers(stream);
+    callback();
+  } else {
+    op_http2_client_send_data(streamRid, new Uint8Array(), true)
+      .then(() => {
+        callback();
+        stream[kMaybeDestroy]();
+        core.tryClose(streamRid);
+      })
+      .catch((e) => {
+        callback(e);
+        core.tryClose(streamRid);
+        stream._destroy(e);
+      });
+  }
   // TODO(bartlomieju): might have to add "finish" event listener here,
   // check it.
 }