create vercel project files

.gitignore

@@ -1,2 +1,3 @@
 /node_modules/
 /.env
+/.vercel

Dockerfile

@@ -1,5 +1,7 @@
 FROM node:alpine
+WORKDIR /app
 ADD package.json .
 RUN npm i
+ADD api api
 ADD index.js .
 CMD ["npm","start"]

api/app.js

@@ -0,0 +1,11 @@
+module.exports = (req, res) => {
+  res.json({
+    headers: req.headers,
+    body: req.body == null ? null : req.body,
+    host: req.headers.host,
+    method: req.method,
+    target: req.url,
+    query: req.query,
+    cookies: req.cookies,
+  });
+};

index.js

@@ -1,5 +1,8 @@
 const express = require("express");
+const cookieParser = require("cookie-parser");
+const morgan = require("morgan");
 const passport = require("passport");
+
 const { BasicStrategy } = require("passport-http");
 const { timingSafeEqual } = require("crypto");
 const { HTTP_USERNAME, HTTP_PASSWORD } = process.env;
@@ -19,21 +22,13 @@ passport.use(
 
 const app = express();
 
+app.use(cookieParser());
+app.use(morgan("combined"));
 app.use(express.json());
 app.use(express.urlencoded({ extended: false }));
 app.use(express.raw({ type: "*/*" }));
 app.set("json spaces", 2);
 app.all("/basic-auth", passport.authenticate("basic", { session: false }));
-app.all("/*", function(req, res) {
-  res.json({
-    headers: req.headers,
-    body: req.body.length > 0 ? req.body.toString() : null,
-    form: req.is("urlencoded") ? req.body : null,
-    json: req.is("json") ? req.body : null,
-    method: req.method,
-    target: req.url,
-    host: req.headers.host
-  });
-});
+app.all("/*", require("./api/app.js"));
 
 app.listen(process.env.PORT || 8080);

package.json

@@ -8,9 +8,11 @@
     "start": "node -r dotenv/config index.js"
   },
   "dependencies": {
+    "cookie-parser": "latest",
     "express": "latest",
-    "passport-http": "latest",
-    "passport": "latest"
+    "morgan": "latest",
+    "passport": "latest",
+    "passport-http": "latest"
   },
   "devDependencies": {
     "dotenv": "latest",

vercel.json

@@ -0,0 +1,4 @@
+{
+  "version": 2,
+  "routes": [{ "src": "/.*", "dest": "/api/app.js" }]
+}