Apollo GraphQL解析器类型签名中的info参数为空

Question

我正在使用这个名为Wertik JS的库https://github.com/ilyaskarim/wertik-js来简化GraphQL + Rest API，在解析器中，当我控制台日志info ，它显示未定义。 对于每个模块，我都创建了动态解析器​​，以使使用该库的开发人员更轻松地进行操作。

let object = {
    create: async (_:any, args:any, context:any,info: any) => {
      console.log(info); // This will be undefined
      let v = await validate(validations.create,args.input);
      let {success} = v;
      if (!success) {
        throw new ApolloError("Validation error",statusCodes.BAD_REQUEST.number,{list: v.errors})
      }
      try {
        let createModel = await model.create(args.input);
        pubsub.publish(`${camelCase(moduleName)}Created`, { [`${camelCase(moduleName)}Created`]: createModel });
        return createModel;
      } catch (e) {
        return internalServerError(e);
      }
    },
}

行： https : //github.com/ilyaskarim/wertik-js/blob/ec813f49a14ddd6a04680b261ae4ef2aadc2b1a5/src/framework/dynamic/resolvers.ts#L102

该信息在Apollo服务器文档https://www.apollographql.com/docs/apollo-server/essentials/data/#resolver-type-signature中进行了描述，其中说：该参数包含有关查询执行状态的信息，包括字段名称，从根到字段的路径等等。 对我来说，不幸的是，它变得不确定。

重现此问题：

1. 下载https://github.com/ilyaskarim/wertik-js/tree/development
2. 纱线安装
3. 转到示例/演示
4. 运行node index.js
5. 现在转到http：// localhost：1209 /

6. 输入此突变，例如：

   变异{createRole（input：{name：“ Asd”}）{name}}

7. 此行在此突变上执行https://github.com/ilyaskarim/wertik-js/blob/ec813f49a14ddd6a04680b261ae4ef2aadc2b1a5/src/framework/dynamic/resolvers.ts#L102
8. 并在控制台上返回undefined。

这是我设置应用程序的方式：

const { ApolloServer } = require('apollo-server');

import mutations from "./loadAllMutations";
import queries from "./loadAllQueries";
import resolvers from "./loadAllResolvers";
import subscriptions from "./loadAllSubscriptions";
import schemas from "./loadAllSchemas";
import generalSchema from "./../helpers/generalSchema";

export default function (rootDirectory: string,app: any,configuration: object) {
  let allMutations = mutations(rootDirectory);
  let allQueries=  queries(rootDirectory);
  let allSchemas = schemas(rootDirectory);
  let allResolvers = resolvers(rootDirectory);
  let allSubscriptions = subscriptions(rootDirectory);
  let {validateAccessToken} = require(`${rootDirectory}/framework/predefinedModules/user/auth`).default;
  let mainSchema  = `
    ${generalSchema}
    ${allSchemas}
    type Subscription {
      ${allSubscriptions}
    }
    type Mutation {
      ${allMutations}
    }
    type Query {
      ${allQueries}
    }
    schema {
      query: Query
      mutation: Mutation
      subscription: Subscription
    }
  `;
  const server = new ApolloServer({ 
    typeDefs: mainSchema, 
    resolvers: allResolvers,
    context: async (a: any) => {
      await validateAccessToken(a.req);
    }
  });
  server.listen(1209).then(({ url, subscriptionsUrl }) => {
    console.log(`Server ready at ${url}`);
    console.log(`Subscriptions ready at ${subscriptionsUrl}`);
  });
}

可能是什么原因？

Answer 1

您正在截断此模块中的解析器接收的参数。 如果您需要将函数分配给某些对象属性，则最好像这样进行操作：

mutations: {
  [`create${moduleName}`]: mutations[`create${moduleName}`],
},

这不仅更简洁，而且还意味着您不必冒意外遗漏参数的风险，这就是这里发生的情况。