我正在用node做示例程序,graphql我完成了基本代码以返回一些我的代码是
const express = require('express');
const bodyParser = require('body-parser');
const graphqlHttp = require('express-graphql');
const { buildSchema } = require('graphql');
const app = express();
app.use(bodyParser.urlencoded({ extended: true }));
app.use(bodyParser.json());
app.use(bodyParser.text({ type: 'application/graphql' }));
app.use('/graphql',
graphqlHttp({
schema: buildSchema(`
type RootQuery{
events: [String!]!
}
type RootMutation{
createEvent(name: String): String
}
schema {
query: RootQuery
mutation: RootMutation
}
`),
rootValue: {
events: () => {
return ['coding', 'night coding', 'always coding'];
},
createEvent: (args) => {
const eventName = args.name;
return eventName;
},
graphiql: true
}
}));
app.listen(3000);
我在访问localhost:3000 / graphql时遇到问题,浏览器的问题是{“错误”:[{“消息”:“必须提供查询字符串。”}]},我也检查了浏览器中的网络选项卡,发现请求不正确400错误,但仅用于/ graphql 。如果有任何错误,请纠正。我尝试了一些堆栈溢出解决方案,但未解决
1.
app.use(bodyParser.text({ type: 'application/graphql' }));
2.
app.use(/\/((?!graphql).)*/, bodyParser.urlencoded({ extended: true }));
app.use(/\/((?!graphql).)*/, bodyParser.json());
3.
Also checked Contant-type: application/json is going in header i need help on this