feat: implemented graphql body-parser

Author: kbrandwijk

src/index.ts

@@ -0,0 +1,22 @@
+import * as bodyParser from 'body-parser'
+import { Request, Response, NextFunction, RequestHandler } from 'express'
+
+export const bodyParserGraphQL: () => RequestHandler = () => (
+  req: Request,
+  res: Response,
+  next: NextFunction
+) => {
+  if (req.is('application/graphql')) {
+    bodyParser.text({ type: 'application/graphql' })(req, res, () => {
+      req.headers['content-type'] = 'application/json'
+      req.body = {
+        query: req.body
+      }
+      next()
+    })
+  } else {
+    bodyParser.json()(req, res, next)
+  }
+}
+
+export const graphql = bodyParserGraphQL