Troubleshoot Resolving Express-GraphQL Endpoint with Apollo Client and Proxy Config - node.js

Question

I'm attempting to connect to an Express-GraphQL endpoint in a Create-React-App using Apollo Client with a custom proxy config for development. I receive the following error: .
Apollo Client Network Interface:
import {ApolloProvider, ApolloClient, createNetworkInterface} from 'react-apollo';
import './index.css';
const client = new ApolloClient({
networkInterface: createNetworkInterface({
uri:"http://localhost:8080/graphql",
}),
connectToDevTools: true
});
Express Server / GraphQL Server
const graphqlHTTP = require('express-graphql');
const app = express();
app.use('/graphql', graphqlHTTP(request =>{
return {
schema: schema,
graphiql: true,
rootValue: root
} }));
let server;
function runServer(dbUrl, host, port=3001) {
return new Promise((resolve, reject) => {
mongoose.Promise = global.Promise;
mongoose.connect(dbUrl, err => {
if (err) {
return reject(err);
}
server = app.listen(port, host, () => {
console.log(`Your app is listening on port ${port}`);
resolve();
})
The Proxy
(With http-proxy-middlewear)
const express = require('express');
const proxy = require('http-proxy-middleware');
const app = express();
const runServer = require('./server').runServer;
const app = express();
// Proxy everything through to Create React App
app.use(proxy('http://localhost:3000/', {
logLevel: 'warn', // Keep the logs clean
ws: true, // Proxy websockets too
router: {
// Anything to /api goes to our backend
'http://localhost:8080/graphql': 'http://localhost:3001/',
}
}));
app.listen(8080);
Top Level package.json aka The Reason
(3 package.json's for client, server, and top level)
"scripts": {
"start": "node index.js",
"heroku-postbuild": "cd client && npm install --only=dev && npm run build",
"dev": "run-p dev:server dev:client start",
"dev:client": "cd client && cross-env BROWSER=none npm start -- --color=always | xp http://localhost:3000/ http://localhost:8080/",
"dev:server": "cd server && npm start",
"install": "run-s install:server install:client",
"install:server": "cd server && npm install",
"install:client": "cd client && npm install"
},