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import { Application, Router, Middleware } from 'https://deno.land/x/oak@v11.1.0/mod.ts'import { GraphQLHTTP } from '../mod.ts'import { makeExecutableSchema } from 'https://esm.sh/@graphql-tools/schema@9.0.14'import { gql } from 'https://deno.land/x/graphql_tag@0.1.0/mod.ts'
const typeDefs = gql`  type Query {    hello: String  }`
const resolvers = {  Query: {    hello: (_root: undefined, _args: unknown, ctx: { request: Request }) => {      return `Hello World! from ${ctx.request.url}`    }  }}
const schema = makeExecutableSchema({ resolvers, typeDefs })
const resolve = GraphQLHTTP({  schema,  graphiql: true,  context: (request) => ({ request })})
const handleGraphQL: Middleware = async (ctx) => {  // cast Oak request into a normal Request  const req = new Request(ctx.request.url.toString(), {    body: ctx.request.originalRequest.getBody().body,    headers: ctx.request.headers,    method: ctx.request.method  })
  const res = await resolve(req)
  for (const [k, v] of res.headers.entries()) ctx.response.headers.append(k, v)
  ctx.response.status = res.status  ctx.response.body = res.body}
// Allow CORS:// const cors: Middleware = (ctx) => {// ctx.response.headers.append('access-control-allow-origin', '*')// ctx.response.headers.append('access-control-allow-headers', 'Origin, Host, Content-Type, Accept')// }
const graphqlRouter = new Router().all('/graphql', handleGraphQL)
const app = new Application().use(  // cors,  graphqlRouter.routes(),  graphqlRouter.allowedMethods())
app.addEventListener('listen', ({ secure, hostname, port }) => {  if (hostname === '0.0.0.0') hostname = 'localhost'
  const protocol = secure ? 'https' : 'http'  const url = `${protocol}://${hostname ?? 'localhost'}:${port}`
  console.log('☁  Started on ' + url)})
await app.listen({ port: 3000 })