Module: use/deno
Interfaces
Other
GRAPHQL_TRANSPORT_WS_PROTOCOL
Re-exports GRAPHQL_TRANSPORT_WS_PROTOCOL
Server/deno
makeHandler
▸ makeHandler<P, E>(options): (socket: WebSocket) => void
Use the server with Deno. This is a basic starter, feel free to copy the code over and adjust it to your needs.
The keep-alive is set in Deno.upgradeWebSocket during the upgrade.
Additionally, the required WebSocket protocol is also defined during the upgrade, the correct example being:
import { serve } from 'https://deno.land/std/http/mod.ts';
import {
makeHandler,
GRAPHQL_TRANSPORT_WS_PROTOCOL,
} from 'https://esm.sh/graphql-ws/lib/use/deno';
import { schema } from './my-schema.ts';
const handler = makeHandler({ schema });
serve(
(req: Request) => {
const [path, _search] = req.url.split('?');
if (!path.endsWith('/graphql')) {
return new Response('Not Found', { status: 404 });
}
if (req.headers.get('upgrade') != 'websocket') {
return new Response('Upgrade Required', { status: 426 });
}
const { socket, response } = Deno.upgradeWebSocket(req, {
protocol: GRAPHQL_TRANSPORT_WS_PROTOCOL,
idleTimeout: 12_000,
});
handler(socket);
return response;
},
{ port: 4000 },
);Type parameters
| Name | Type |
|---|---|
P | extends undefined | Record<string, unknown> = undefined | Record<string, unknown> |
E | extends Record<PropertyKey, unknown> = Record<PropertyKey, never> |
Parameters
| Name | Type |
|---|---|
options | ServerOptions<P, Extra & Partial<E>> |
Returns
fn
▸ (socket): void
Parameters
| Name | Type |
|---|---|
socket | WebSocket |
Returns
void