chore: Extract error handler and graphql instance to seperate files

packages/backend/src/helpers/error-handler.ts

@@ -0,0 +1,13 @@
+import { Request, Response, NextFunction } from 'express';
+import logger from './logger';
+
+const errorHandler = (err: any, req: Request, res: Response, _next: NextFunction) => {
+  if(err.message === 'Not Found') {
+    res.status(404).end()
+  } else {
+    logger.error(err.message)
+    res.status(500).end()
+  }
+}
+
+export default errorHandler;

packages/backend/src/helpers/graphql-instance.ts

@@ -0,0 +1,11 @@
+import { graphqlHTTP } from 'express-graphql';
+import rootResolver from '../graphql/root-resolver'
+import graphQLSchema from '../graphql/graphql-schema'
+
+const graphQLInstance = graphqlHTTP({
+  schema: graphQLSchema,
+  rootValue: rootResolver,
+  graphiql: true,
+})
+
+export default graphQLInstance;