snowballtools-base/packages/backend/src/server.ts

126 lines
3.1 KiB
TypeScript

import debug from 'debug';
import express from 'express';
import cors from 'cors';
import { ApolloServer } from 'apollo-server-express';
import { createServer } from 'http';
import {
ApolloServerPluginDrainHttpServer,
ApolloServerPluginLandingPageLocalDefault,
AuthenticationError,
} from 'apollo-server-core';
import cookieSession from 'cookie-session';
import { TypeSource } from '@graphql-tools/utils';
import { makeExecutableSchema } from '@graphql-tools/schema';
import { ServerConfig } from './config';
import { DEFAULT_GQL_PATH } from './constants';
import githubRouter from './routes/github';
import authRouter from './routes/auth';
import stagingRouter from './routes/staging';
import { Service } from './service';
const log = debug('snowball:server');
declare module 'express-session' {
interface SessionData {
userId: string;
}
}
export const createAndStartServer = async (
serverConfig: ServerConfig,
typeDefs: TypeSource,
resolvers: any,
service: Service,
): Promise<ApolloServer> => {
const { host, port, gqlPath = DEFAULT_GQL_PATH } = serverConfig;
const { appOriginUrl, secret, domain, trustProxy } = serverConfig.session;
const app = express();
// Create HTTP server
const httpServer = createServer(app);
// Create the schema
const schema = makeExecutableSchema({
typeDefs,
resolvers,
});
const server = new ApolloServer({
schema,
csrfPrevention: true,
context: async ({ req }) => {
// https://www.apollographql.com/docs/apollo-server/v3/security/authentication#api-wide-authorization
const { userId } = req.session;
if (!userId) {
throw new AuthenticationError('Unauthorized: No active session');
}
const user = await service.getUser(userId);
return { user };
},
plugins: [
// Proper shutdown for the HTTP server
ApolloServerPluginDrainHttpServer({ httpServer }),
ApolloServerPluginLandingPageLocalDefault({ embed: true }),
],
});
await server.start();
app.use(
cors({
origin: appOriginUrl,
credentials: true,
}),
);
if (trustProxy) {
// trust first proxy
app.set('trust proxy', 1);
}
app.use(
cookieSession({
secret: secret,
secure: new URL(appOriginUrl).protocol === 'https:',
// 23 hours (less than 24 hours to avoid sessionSigs expiration issues)
maxAge: 23 * 60 * 60 * 1000,
sameSite: new URL(appOriginUrl).protocol === 'https:' ? 'none' : 'lax',
domain: domain || undefined,
}),
);
server.applyMiddleware({
app,
path: gqlPath,
cors: {
origin: [appOriginUrl],
credentials: true,
},
});
app.use(express.json());
app.set('service', service);
app.use('/auth', authRouter);
app.use('/api/github', githubRouter);
app.use('/staging', stagingRouter);
app.use((err: any, req: any, res: any, next: any) => {
console.error(err);
res.status(500).json({ error: err.message });
});
httpServer.listen(port, host, () => {
log(`Server is listening on ${host}:${port}${server.graphqlPath}`);
});
return server;
};