带有Deno的GraphQL服务器

debugcn 发表于 Dev

赫曼特·梅塔利亚

以下代码仅工作一次

import {
  graphql,
  GraphQLSchema,
  GraphQLObjectType,
  GraphQLString,
  buildSchema,
} from "https://cdn.pika.dev/graphql/^15.0.0";
import { serve } from "https://deno.land/[email protected]/http/server.ts";

var schema = new GraphQLSchema({
  query: new GraphQLObjectType({
    name: "RootQueryType",
    fields: {
      hello: {
        type: GraphQLString,
        resolve() {
          return "world";
        },
      },
    },
  }),
});

var query = "{ hello }";

graphql(schema, query).then((result) => {
  console.log(result);
});

如何保持聆听，express就像这样

var express = require('express');
var graphqlHTTP = require('express-graphql');
var { buildSchema } = require('graphql');

// Construct a schema, using GraphQL schema language
var schema = buildSchema(`
  type Query {
    hello: String
  }
`);

// The root provides a resolver function for each API endpoint
var root = {
  hello: () => {
    return 'Hello world!';
  },
};

var app = express();
app.use('/graphql', graphqlHTTP({
  schema: schema,
  rootValue: root,
  graphiql: true,
}));
app.listen(4000);
console.log('Running a GraphQL API server at http://localhost:4000/graphql');

拉克什·贾恩（Rakesh Jain）

import {
    graphql,
    buildSchema,
} from "https://cdn.pika.dev/graphql/^15.0.0";
import {Application, Router} from "https://deno.land/x/oak/mod.ts";

var schema = buildSchema(`
  type Query {
    hello: String
  }
`);

var resolver = {hello: () => 'Hello world!'}

const executeSchema = async (query:any) => {
    const result = await graphql(schema, query, resolver);   
    return result;
}

var router = new Router();

router.post("/graph", async ({request, response}) => {
    if(request.hasBody) {
        const body = await request.body();
        const result = await executeSchema(body.value);
        response.body = result;
    } else {
        response.body = "Query Unknown";
    }
})


let app = new Application();
app.use(router.routes());
app.use(router.allowedMethods());
console.log("Server running");
app.listen({port: 5000})

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