feat(server): add Raven, disable x-powered-by

src/server/middlewares/index.js

@@ -9,9 +9,16 @@ import cookieParser from 'cookie-parser'
 import bodyParser from 'body-parser'
 import morgan from 'morgan'
 import useragent from 'express-useragent'
+import Raven from 'raven'
 import authMiddleware from './auth'
 
 export default (app: express$Application): express$Application => {
+	// Must configure Raven before doing anything else with it
+	Raven.config(process.env.SENTRY_DSN).install()
+	// The request handler must be the first middleware on the app
+	app.use(Raven.requestHandler())
+	// remove x-powered-by
+	app.disable('x-powered-by')
 	// Add express stuff
 	app.use(helmet())
 	app.use(compression())
@@ -25,6 +32,23 @@ export default (app: express$Application): express$Application => {
 	app.use(bodyParser.json())
 	app.use(useragent.express())
 	app.use(authMiddleware)
+	// The error handler must be before any other error middleware
+	app.use(Raven.errorHandler())
+	// Optional fallthrough error handler
+	// eslint-disable-next-line
+	app.use(function onError(
+		err,
+		req: express$Request,
+		res: express$Response,
+		next: express$NextFunction
+	) {
+		// NOTE: @Metnew: line disabled by ESlint, because err is already handled by sentry
+		//
+		// The error id is attached to `res.sentry` to be returned
+		// and optionally displayed to the user for support.
+		res.statusCode = 500
+		res.end(res.sentry + '\n')
+	})
 
 	return app
 }