Host as a Firebase function

Author: eexit

.firebaserc

@@ -0,0 +1,5 @@
+{
+  "projects": {
+    "default": "mirror-http-server"
+  }
+}

.gitignore

@@ -1,2 +1,14 @@
 node_modules
 package-lock.json
+
+# Logs
+logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+firebase-debug.log*
+firebase-debug.*.log*
+
+# Firebase cache
+.firebase/

Dockerfile

@@ -1,7 +1,7 @@
 FROM node:lts-alpine
 RUN apk add --no-cache yarn
 WORKDIR /app
-COPY . .
+COPY functions .
 RUN yarn --frozen-lockfile --loglevel=error --prod
 EXPOSE 8080
 CMD [ "yarn", "start" ]

README.md

@@ -1,9 +1,11 @@
 ![logo](logo.png)
 
-# Mirror HTTP Server [![Build Status](https://travis-ci.org/eexit/mirror-http-server.svg)](https://travis-ci.org/eexit/mirror-http-server) [![DockerHub](https://img.shields.io/badge/docker-hub-brightgreen.svg?style=flat)](https://hub.docker.com/r/eexit/mirror-http-server/)
+# Mirror HTTP Server [![DockerHub](https://img.shields.io/docker/image-size/eexit/mirror-http-server?color=brightgreen)](https://hub.docker.com/r/eexit/mirror-http-server/) [![Firebase function](https://img.shields.io/badge/firebase-function-brightgreen)](https://mirror-http-server.web.app)
 
 *A dummy HTTP server that responds whatever you told it to.*
 
+Testing URL: <https://mirror-http-server.web.app>
+
 Built to play with HTTP or test your API. Make a HTTP call to the dummy server with the specified headers you want the server responds with.
 
 ## Usage

firebase.json

@@ -0,0 +1,19 @@
+{
+    "functions": {
+        "source": "functions"
+    },
+    "hosting": {
+        "public": "public",
+        "ignore": [
+            "firebase.json",
+            "**/.*",
+            "**/node_modules/**"
+        ],
+        "rewrites": [
+            {
+                "source": "**",
+                "function": "mirror"
+            }
+        ]
+    }
+}

functions/index.js

@@ -0,0 +1,6 @@
+'use strict';
+
+const mirror = require('./mirror'),
+    functions = require('firebase-functions');
+
+module.exports = { mirror: functions.https.onRequest(mirror.app) };

server.js functions/mirror.js

@@ -1,8 +1,5 @@
 'use strict';
 
-const host = '0.0.0.0',
-    port = 8080;
-
 const _ = require('lodash'),
     bunyan = require('bunyan'),
     bodyParser = require('body-parser'),
@@ -15,13 +12,13 @@ app.enable('trust proxy');
 app.use(bodyParser.json());
 app.use(bodyParser.urlencoded({ extended: true }));
 
-// Intercepts all HTTP verb requests
+// Intercepts all HTTP verbs requests
 app.all('*', function (req, res, next) {
     // Returned response headers
     const responseHeaders = {};
 
     // Parses the wanted response code
-    const mirrorCode = req.get('X-Mirror-Code') || 200;
+    const mirrorCode = parseInt(req.get('X-Mirror-Code')) || 200;
 
     const delay = req.get('X-Mirror-Delay') || 0;
 
@@ -82,4 +79,7 @@ app.use(function (err, req, res, next) {
     res.status(500).json(err);
 });
 
-app.listen(port, host, 511, () => logger.info('Listening on http://%s:%s', host, port));
+module.exports = {
+    app: app,
+    logger: logger,
+};

package.json functions/package.json

@@ -1,12 +1,15 @@
 {
     "name": "mirror-http-server",
-    "version": "2.0.0",
     "description": "A dummy HTTP server that responds whatever you told it to",
     "scripts": {
         "start": "node server.js | npm run bunyan",
         "start:dev": "nodemon server.js | npm run bunyan",
         "test": "echo \"No test specified yet\"",
-        "bunyan": "$(npm bin)/bunyan"
+        "bunyan": "$(npm bin)/bunyan",
+        "serve": "firebase emulators:start --only functions",
+        "shell": "firebase functions:shell",
+        "deploy": "firebase deploy --only functions",
+        "logs": "firebase functions:log"
     },
     "keywords": [
         "node",
@@ -21,11 +24,16 @@
     ],
     "author": "Joris Berthelot <[email protected]>",
     "license": "MIT",
+    "engines": {
+        "node": "16"
+    },
     "dependencies": {
         "body-parser": "^1.20.0",
         "bunyan": "^1.8.15",
         "express": "^4.18",
-        "lodash": ">=4.17.21"
+        "lodash": ">=4.17.21",
+        "firebase-admin": "^10.0.2",
+        "firebase-functions": "^3.18.0"
     },
     "devDependencies": {
         "nodemon": "^2.0.0"

functions/server.js

@@ -0,0 +1,10 @@
+'use strict';
+
+const mirror = require('./mirror'),
+    host = '0.0.0.0',
+    port = 8080;
+
+mirror.app.listen(
+    port, host, 511,
+    () => mirror.logger.info('Listening on http://%s:%s', host, port)
+);