feat: add a trailing slash redirect in docs path

use "joi" package instead of deprecated "@hapi/joi"

Author: mo4islona

package.json

@@ -28,7 +28,7 @@
     "reflect-metadata": "^0.1.12"
   },
   "dependencies": {
-    "@hapi/joi": "^17.1.1",
+    "joi": "^17.4.2",
     "@nestjs/common": "^8.0.0",
     "@nestjs/swagger": "^5.0.0",
     "express-basic-auth": "^1.2.0",
@@ -43,7 +43,7 @@
     "@nestjs/testing": "^8.0.0",
     "@types/express": "^4.17.8",
     "@types/express-handlebars": "^3.1.0",
-    "@types/hapi__joi": "^17.1.6",
+    "@types/joi": "^17.2.3",
     "@types/jest": "^26.0.15",
     "@types/node": "^14.14.6",
     "@types/supertest": "^2.0.10",

src/model/options.model.ts

@@ -1,4 +1,4 @@
-import Joi = require('@hapi/joi');
+import Joi = require('joi');
 import { OpenAPIObject } from '@nestjs/swagger';
 
 export const schema = (document: OpenAPIObject) =>

src/redoc-module.ts

@@ -7,7 +7,7 @@ import handlebars from 'express-handlebars';
 import pathModule from 'path';
 import { resolve } from 'url';
 import { LogoOptions, RedocDocument, RedocOptions } from './interfaces';
-import { schema } from './model/options.model';
+import { schema } from './model';
 
 export class RedocModule {
   /**
@@ -121,10 +121,16 @@ export class RedocModule {
       'views',
       'redoc.handlebars'
     );
+
     // get handlebars rendered HTML
     const redocHTML = await hbs.render(redocFilePath, renderData);
     // Serve ReDoc Frontend
     httpAdapter.get(finalPath, async (req: Request, res: Response) => {
+      if (!req.url.endsWith('/')) {
+        res.redirect(301, req.url + '/');
+        return;
+      }
+
       const sendPage = () => {
         // Content-Security-Policy: worker-src 'self' blob:
         res.setHeader(
@@ -147,6 +153,7 @@ export class RedocModule {
         sendPage();
       }
     });
+
     // Serve swagger spec json
     httpAdapter.get(docUrl, (req: Request, res: Response) => {
       res.setHeader('Content-Type', 'application/json');