graphql - req 在 Apollo Server 上下文中始终未定义

Question

我对 apollo-server 上下文有问题。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 变量总是未定义的。
有人有想法吗？

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。

Answer 1

我有我的问题的解决方案。

context: ( {req} ) =>... 

不要解构 req ， 它应该是:

context: (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();