如何在GraphQL请求中接受JSON

input JsonInput {
  data: JSON
}

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

// 定义GraphQL Schema
const schema = buildSchema(`
  input JsonInput {
    data: JSON
  }

  type Query {
    hello: String
  }

  type Mutation {
    processJson(input: JsonInput): String
  }
`);

// 创建GraphQL解析器
const root = {
  hello: () => 'Hello, World!',
  processJson: ({ input }) => {
    // 处理接受到的JSON数据
    const jsonData = input.data;
    // 进行相应的处理逻辑
    return 'JSON processed successfully';
  }
};

// 创建Express应用
const app = express();

// 将GraphQL中间件添加到Express应用
app.use('/graphql', graphqlHTTP({
  schema: schema,
  rootValue: root,
  graphiql: true
}));

// 启动服务器
app.listen(3000, () => {
  console.log('GraphQL server running on port 3000');
});

curl -X POST -H "Content-Type: application/json" -d '{
  "query": "mutation ($input: JsonInput) { processJson(input: $input) }",
  "variables": {
    "input": {
      "data": {
        "key1": "value1",
        "key2": "value2"
      }
    }
  }
}' http://localhost:3000/graphql