h3 V1

import { createServer } from "node:http";
import { createApp, eventHandler, toNodeListener } from "h3";
import { grafserv } from "grafserv/h3/v1";
import preset from "./graphile.config";
import schema from "./schema.mjs";

// create a h3 app
const app = createApp();
// (Add any h3 eventHandlers you want here.)

// Create a Node HTTP server, mounting h3 into it
const server = createServer(toNodeListener(app));
server.on("error", (e) => {
  console.error(e);
});

// Create a Grafserv instance
const serv = grafserv({ schema, preset });

// Add the Grafserv instance's route handlers to the h3 app
serv.addTo(app).catch((e) => {
  console.error(e);
  process.exit(1);
});

// Start the server
server.listen(preset.grafserv?.port ?? 5678);

Experimental

Websocket support

h3 does not yet support WebSocket.

An unofficial and experimental workaround consists to replace

serv.addTo(app).catch((e) => {
  console.error(e);
  process.exit(1);
});

with

// this method register directly `server.on('upgrade', ...)` for handling websockets by postgraphile
serv.addTo_experimental(app, server).catch((e) => {
  console.error(e);
  process.exit(1);
});