graphqlSetupVisitor.js

import {setUserAccessToken} from "../facebook";
import {Session, User} from '../db'
import jwt from 'jsonwebtoken'
import {TOKEN_SECRET} from "../constants/other";
import logger from "../../lib/logger";

const GraphQlSchema = require('../graphql').default

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

const setFbToken = (req, res, next) => {
    setUserAccessToken(req.user)
    next()
}

function formatError(error) {
    const errorDetails = error.message.startsWith("{") ? JSON.parse(error.message) : error.message
    return {
        message: errorDetails.text,
        locations: error.locations,
        stack: error.stack ? error.stack.split('\n') : [],
        path: error.path,
        errorCode: errorDetails.code ?? 500,
        "zied?": "who else?"
    }
}


const graphQlServer = graphqlHTTP(async (req, res, graphQLParams) => {
    // console.log("##########################request headers: ", req.headers)
    let user = null
    //FIXME externalize this part to an auth function that calls next(error) if user is not authenticated
    const infraToken = req.header('infra-token')
    // console.log( "infra token : ", JSON.stringify(infraToken), " - secret: '", TOKEN_SECRET +"'")
    if (!infraToken || infraToken.trim().length == 0) {
        // user not logged
    } else {
        try {
            user = jwt.verify(infraToken, TOKEN_SECRET)?.data
            // console.log( "user from token : ", user)
            //FIXME (for some reason I have to load the user from db)
            // logger.debug("####### user ", user, " ######### FIXME (for some reason I have to load the user from db)")
            user = await User.findById(user._id)
            // logger.debug("####### user ", user)
        } catch (err) {
            logger.error(err.message)
            console.trace()
        }
    }
    return {
        schema: GraphQlSchema,
        // graphiql: process.env.NODE_ENV !== 'production',
        graphiql: true,
        customFormatErrorFn: formatError,
        context: {
            user,
            sessionID: req.sessionID
        },
    }
});

function addGraphqlRoute(app, url) {
    app.use(url ? url : '/api/graphql', graphQlServer)
}

export {addGraphqlRoute}