Question

我对apollo-server上下文有疑问。我写了以下代码：

const { ApolloServer } = require("apollo-server-azure-functions");
const { typeDefs, resolvers } = require('../graphql_schema/schema');

const server = new ApolloServer({
    typeDefs,
    resolvers, 
    context: ({ req }) => {
      console.log(req);
      return {
        req: req
      }
    },
    introspection: false,
    playground: true,
  });

  module.exports = server.createHandler();

但是req变量始终是未定义的。有人有主意吗？

我正在使用以下版本的阿波罗

"apollo-server": "^2.4.2",
"apollo-server-azure-functions": "^2.4.2",

非常感谢您。

Answer 1

我有解决问题的方法。

上下文：（{req}）=> ... 一定是上下文：（req）=> ...

const { ApolloServer } = require("apollo-server-azure-functions");
const { typeDefs, resolvers } = require('../graphql_schema/schema');

const server = new ApolloServer({
    typeDefs,
    resolvers, 
    context: (req) => {
      return {
        accesstoken: GetAccessToken(req.request)
      }
    },
    introspection: false,
    playground: true,
  });

  const GetAccessToken = function (request){
    const token = (request.headers.authorization || '').replace('BEARER ', '');
    return token;
  }

  module.exports = server.createHandler();

Answer 2

需要在顶部定义req参数

const { ApolloServer } = require("apollo-server-azure-functions");
const { typeDefs, resolvers } = require('../graphql_schema/schema');

const server = new ApolloServer({
    typeDefs,
    resolvers,
    req,
    context: ({ req }) => {
      console.log(req);
      return {
        req: req
      }
    },
    introspection: false,
    playground: true,
  });

  module.exports = server.createHandler();

req在Apollo Server上下文中始终未定义

2 个答案: