如何将参数传递给 graphqlHTTP 中间件

Question

如何将参数传递给 graphqlHTTP 中间件

我正在尝试将授权 header 令牌负载从另一个上层中间件传递给 graphqlHTTP 中间件

app.use('/private', (req:Request,res:Response,next:Function) => {

   if(!req.header('Authorization')){
      res.json({
         error:true,
         message:'Authorization bearer required'
      })
   }else{
      const token = Buffer.from(req.header('Authorization').split('Bearer ')[1], 'base64').toString('ascii');
      if(decode(token)){
         next();
      }else{
         res.json({
            error:true,
            message:'Authorization bearer required'
         })
      }
   }
});

app.use('/private', graphqlHTTP({
   schema:privateSchema,
   graphiql:false
}))

Answer 1

在请求本身中从中间件设置数据是很常见的。

在您的场景中，令牌可以设置为 req.token，然后传递给您的 graphql 解析器上下文，例如：

// main.js

app.use(authMidddleware) // sets req.token
app.use(
  '/graphql',
  bodyParser.json(),
  graphqlExpress(req => ({ schema, context: req }))
)

// some-resolver.js
export const myResolver = {
  Query: {
    token: async (parent, { input }, context) => {
      const { token } = context;
      // other stuff
    }
  }
}

Answer 2

最近试过这个并且有效：

jwtAuth - middleware that checks authorizaion header for token. Decodes it and store credentials in req.auth.

文件地图

...
[graphql]
[utils]
index.js

index.js

...

const graphqlSettings = require("./graphql/settings");
const jwtAuth = require("./utils/jwtAuth");
// init
...
// parser
...
// cors setup
...        
// JWT authentication
app.use(jwtAuth);    
// graphql init
app.use("/graphql", graphqlSettings);
...

settings.js

...
const { graphqlHTTP } = require("express-graphql");
const typeDefs = require("./typeDefs");
const resolvers = require("./resolvers");
// models
...
// extend context with models
const models = {
    ...
};

module.exports = graphqlHTTP((req) => ({
    graphiql: true,
    schema: typeDefs,
    rootValue: resolvers,
    context: {
        ...models,
        auth: req.auth,
    },
}));

如何将参数传递给 graphqlHTTP 中间件

How to pass arguments to graphqlHTTP middleware

node.js

express

graphql-js